diff options
Diffstat (limited to 'openssl/crypto/rsa')
| -rw-r--r-- | openssl/crypto/rsa/rsa.h | 503 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_ameth.c | 349 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_asn1.c | 111 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_chk.c | 184 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_depr.c | 101 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_eay.c | 893 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_err.c | 190 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_gen.c | 219 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_lib.c | 483 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_locl.h | 4 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_none.c | 98 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_null.c | 151 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_oaep.c | 233 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_pk1.c | 224 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_pmeth.c | 587 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_prn.c | 93 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_pss.c | 275 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_saos.c | 150 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_sign.c | 285 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_ssl.c | 154 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_test.c | 340 | ||||
| -rw-r--r-- | openssl/crypto/rsa/rsa_x931.c | 177 |
22 files changed, 5804 insertions, 0 deletions
diff --git a/openssl/crypto/rsa/rsa.h b/openssl/crypto/rsa/rsa.h new file mode 100644 index 00000000..cf743436 --- /dev/null +++ b/openssl/crypto/rsa/rsa.h @@ -0,0 +1,503 @@ +/* crypto/rsa/rsa.h */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#ifndef HEADER_RSA_H +#define HEADER_RSA_H + +#include <openssl/asn1.h> + +#ifndef OPENSSL_NO_BIO +#include <openssl/bio.h> +#endif +#include <openssl/crypto.h> +#include <openssl/ossl_typ.h> +#ifndef OPENSSL_NO_DEPRECATED +#include <openssl/bn.h> +#endif + +#ifdef OPENSSL_NO_RSA +#error RSA is disabled. +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* Declared already in ossl_typ.h */ +/* typedef struct rsa_st RSA; */ +/* typedef struct rsa_meth_st RSA_METHOD; */ + +struct rsa_meth_st + { + const char *name; + int (*rsa_pub_enc)(int flen,const unsigned char *from, + unsigned char *to, + RSA *rsa,int padding); + int (*rsa_pub_dec)(int flen,const unsigned char *from, + unsigned char *to, + RSA *rsa,int padding); + int (*rsa_priv_enc)(int flen,const unsigned char *from, + unsigned char *to, + RSA *rsa,int padding); + int (*rsa_priv_dec)(int flen,const unsigned char *from, + unsigned char *to, + RSA *rsa,int padding); + int (*rsa_mod_exp)(BIGNUM *r0,const BIGNUM *I,RSA *rsa,BN_CTX *ctx); /* Can be null */ + int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, + const BIGNUM *m, BN_CTX *ctx, + BN_MONT_CTX *m_ctx); /* Can be null */ + int (*init)(RSA *rsa); /* called at new */ + int (*finish)(RSA *rsa); /* called at free */ + int flags; /* RSA_METHOD_FLAG_* things */ + char *app_data; /* may be needed! */ +/* New sign and verify functions: some libraries don't allow arbitrary data + * to be signed/verified: this allows them to be used. Note: for this to work + * the RSA_public_decrypt() and RSA_private_encrypt() should *NOT* be used + * RSA_sign(), RSA_verify() should be used instead. Note: for backwards + * compatibility this functionality is only enabled if the RSA_FLAG_SIGN_VER + * option is set in 'flags'. + */ + int (*rsa_sign)(int type, + const unsigned char *m, unsigned int m_length, + unsigned char *sigret, unsigned int *siglen, const RSA *rsa); + int (*rsa_verify)(int dtype, + const unsigned char *m, unsigned int m_length, + const unsigned char *sigbuf, unsigned int siglen, + const RSA *rsa); +/* If this callback is NULL, the builtin software RSA key-gen will be used. This + * is for behavioural compatibility whilst the code gets rewired, but one day + * it would be nice to assume there are no such things as "builtin software" + * implementations. */ + int (*rsa_keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb); + }; + +struct rsa_st + { + /* The first parameter is used to pickup errors where + * this is passed instead of aEVP_PKEY, it is set to 0 */ + int pad; + long version; + const RSA_METHOD *meth; + /* functional reference if 'meth' is ENGINE-provided */ + ENGINE *engine; + BIGNUM *n; + BIGNUM *e; + BIGNUM *d; + BIGNUM *p; + BIGNUM *q; + BIGNUM *dmp1; + BIGNUM *dmq1; + BIGNUM *iqmp; + /* be careful using this if the RSA structure is shared */ + CRYPTO_EX_DATA ex_data; + int references; + int flags; + + /* Used to cache montgomery values */ + BN_MONT_CTX *_method_mod_n; + BN_MONT_CTX *_method_mod_p; + BN_MONT_CTX *_method_mod_q; + + /* all BIGNUM values are actually in the following data, if it is not + * NULL */ + char *bignum_data; + BN_BLINDING *blinding; + BN_BLINDING *mt_blinding; + }; + +#ifndef OPENSSL_RSA_MAX_MODULUS_BITS +# define OPENSSL_RSA_MAX_MODULUS_BITS 16384 +#endif + +#ifndef OPENSSL_RSA_SMALL_MODULUS_BITS +# define OPENSSL_RSA_SMALL_MODULUS_BITS 3072 +#endif +#ifndef OPENSSL_RSA_MAX_PUBEXP_BITS +# define OPENSSL_RSA_MAX_PUBEXP_BITS 64 /* exponent limit enforced for "large" modulus only */ +#endif + +#define RSA_3 0x3L +#define RSA_F4 0x10001L + +#define RSA_METHOD_FLAG_NO_CHECK 0x0001 /* don't check pub/private match */ + +#define RSA_FLAG_CACHE_PUBLIC 0x0002 +#define RSA_FLAG_CACHE_PRIVATE 0x0004 +#define RSA_FLAG_BLINDING 0x0008 +#define RSA_FLAG_THREAD_SAFE 0x0010 +/* This flag means the private key operations will be handled by rsa_mod_exp + * and that they do not depend on the private key components being present: + * for example a key stored in external hardware. Without this flag bn_mod_exp + * gets called when private key components are absent. + */ +#define RSA_FLAG_EXT_PKEY 0x0020 + +/* This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify functions. + */ +#define RSA_FLAG_SIGN_VER 0x0040 + +#define RSA_FLAG_NO_BLINDING 0x0080 /* new with 0.9.6j and 0.9.7b; the built-in + * RSA implementation now uses blinding by + * default (ignoring RSA_FLAG_BLINDING), + * but other engines might not need it + */ +#define RSA_FLAG_NO_CONSTTIME 0x0100 /* new with 0.9.8f; the built-in RSA + * implementation now uses constant time + * operations by default in private key operations, + * e.g., constant time modular exponentiation, + * modular inverse without leaking branches, + * division without leaking branches. This + * flag disables these constant time + * operations and results in faster RSA + * private key operations. + */ +#ifndef OPENSSL_NO_DEPRECATED +#define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME /* deprecated name for the flag*/ + /* new with 0.9.7h; the built-in RSA + * implementation now uses constant time + * modular exponentiation for secret exponents + * by default. This flag causes the + * faster variable sliding window method to + * be used for all exponents. + */ +#endif + + +#define EVP_PKEY_CTX_set_rsa_padding(ctx, pad) \ + EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, EVP_PKEY_CTRL_RSA_PADDING, \ + pad, NULL) + +#define EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, len) \ + EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \ + (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \ + EVP_PKEY_CTRL_RSA_PSS_SALTLEN, \ + len, NULL) + +#define EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) \ + EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \ + EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL) + +#define EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp) \ + EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \ + EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp) + +#define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1) +#define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 2) + +#define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 3) +#define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4) + +#define RSA_PKCS1_PADDING 1 +#define RSA_SSLV23_PADDING 2 +#define RSA_NO_PADDING 3 +#define RSA_PKCS1_OAEP_PADDING 4 +#define RSA_X931_PADDING 5 +/* EVP_PKEY_ only */ +#define RSA_PKCS1_PSS_PADDING 6 + +#define RSA_PKCS1_PADDING_SIZE 11 + +#define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,arg) +#define RSA_get_app_data(s) RSA_get_ex_data(s,0) + +RSA * RSA_new(void); +RSA * RSA_new_method(ENGINE *engine); +int RSA_size(const RSA *); + +/* Deprecated version */ +#ifndef OPENSSL_NO_DEPRECATED +RSA * RSA_generate_key(int bits, unsigned long e,void + (*callback)(int,int,void *),void *cb_arg); +#endif /* !defined(OPENSSL_NO_DEPRECATED) */ + +/* New version */ +int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb); + +int RSA_check_key(const RSA *); + /* next 4 return -1 on error */ +int RSA_public_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +int RSA_private_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +int RSA_public_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +int RSA_private_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +void RSA_free (RSA *r); +/* "up" the RSA object's reference count */ +int RSA_up_ref(RSA *r); + +int RSA_flags(const RSA *r); + +void RSA_set_default_method(const RSA_METHOD *meth); +const RSA_METHOD *RSA_get_default_method(void); +const RSA_METHOD *RSA_get_method(const RSA *rsa); +int RSA_set_method(RSA *rsa, const RSA_METHOD *meth); + +/* This function needs the memory locking malloc callbacks to be installed */ +int RSA_memory_lock(RSA *r); + +/* these are the actual SSLeay RSA functions */ +const RSA_METHOD *RSA_PKCS1_SSLeay(void); + +const RSA_METHOD *RSA_null_method(void); + +DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPublicKey) +DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPrivateKey) + +#ifndef OPENSSL_NO_FP_API +int RSA_print_fp(FILE *fp, const RSA *r,int offset); +#endif + +#ifndef OPENSSL_NO_BIO +int RSA_print(BIO *bp, const RSA *r,int offset); +#endif + +#ifndef OPENSSL_NO_RC4 +int i2d_RSA_NET(const RSA *a, unsigned char **pp, + int (*cb)(char *buf, int len, const char *prompt, int verify), + int sgckey); +RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length, + int (*cb)(char *buf, int len, const char *prompt, int verify), + int sgckey); + +int i2d_Netscape_RSA(const RSA *a, unsigned char **pp, + int (*cb)(char *buf, int len, const char *prompt, + int verify)); +RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length, + int (*cb)(char *buf, int len, const char *prompt, + int verify)); +#endif + +/* The following 2 functions sign and verify a X509_SIG ASN1 object + * inside PKCS#1 padded RSA encryption */ +int RSA_sign(int type, const unsigned char *m, unsigned int m_length, + unsigned char *sigret, unsigned int *siglen, RSA *rsa); +int RSA_verify(int type, const unsigned char *m, unsigned int m_length, + const unsigned char *sigbuf, unsigned int siglen, RSA *rsa); + +/* The following 2 function sign and verify a ASN1_OCTET_STRING + * object inside PKCS#1 padded RSA encryption */ +int RSA_sign_ASN1_OCTET_STRING(int type, + const unsigned char *m, unsigned int m_length, + unsigned char *sigret, unsigned int *siglen, RSA *rsa); +int RSA_verify_ASN1_OCTET_STRING(int type, + const unsigned char *m, unsigned int m_length, + unsigned char *sigbuf, unsigned int siglen, RSA *rsa); + +int RSA_blinding_on(RSA *rsa, BN_CTX *ctx); +void RSA_blinding_off(RSA *rsa); +BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx); + +int RSA_padding_add_PKCS1_type_1(unsigned char *to,int tlen, + const unsigned char *f,int fl); +int RSA_padding_check_PKCS1_type_1(unsigned char *to,int tlen, + const unsigned char *f,int fl,int rsa_len); +int RSA_padding_add_PKCS1_type_2(unsigned char *to,int tlen, + const unsigned char *f,int fl); +int RSA_padding_check_PKCS1_type_2(unsigned char *to,int tlen, + const unsigned char *f,int fl,int rsa_len); +int PKCS1_MGF1(unsigned char *mask, long len, + const unsigned char *seed, long seedlen, const EVP_MD *dgst); +int RSA_padding_add_PKCS1_OAEP(unsigned char *to,int tlen, + const unsigned char *f,int fl, + const unsigned char *p,int pl); +int RSA_padding_check_PKCS1_OAEP(unsigned char *to,int tlen, + const unsigned char *f,int fl,int rsa_len, + const unsigned char *p,int pl); +int RSA_padding_add_SSLv23(unsigned char *to,int tlen, + const unsigned char *f,int fl); +int RSA_padding_check_SSLv23(unsigned char *to,int tlen, + const unsigned char *f,int fl,int rsa_len); +int RSA_padding_add_none(unsigned char *to,int tlen, + const unsigned char *f,int fl); +int RSA_padding_check_none(unsigned char *to,int tlen, + const unsigned char *f,int fl,int rsa_len); +int RSA_padding_add_X931(unsigned char *to,int tlen, + const unsigned char *f,int fl); +int RSA_padding_check_X931(unsigned char *to,int tlen, + const unsigned char *f,int fl,int rsa_len); +int RSA_X931_hash_id(int nid); + +int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash, + const EVP_MD *Hash, const unsigned char *EM, int sLen); +int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM, + const unsigned char *mHash, + const EVP_MD *Hash, int sLen); + +int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); +int RSA_set_ex_data(RSA *r,int idx,void *arg); +void *RSA_get_ex_data(const RSA *r, int idx); + +RSA *RSAPublicKey_dup(RSA *rsa); +RSA *RSAPrivateKey_dup(RSA *rsa); + +/* BEGIN ERROR CODES */ +/* The following lines are auto generated by the script mkerr.pl. Any changes + * made after this point may be overwritten when the script is next run. + */ +void ERR_load_RSA_strings(void); + +/* Error codes for the RSA functions. */ + +/* Function codes. */ +#define RSA_F_CHECK_PADDING_MD 140 +#define RSA_F_DO_RSA_PRINT 146 +#define RSA_F_INT_RSA_VERIFY 145 +#define RSA_F_MEMORY_LOCK 100 +#define RSA_F_OLD_RSA_PRIV_DECODE 147 +#define RSA_F_PKEY_RSA_CTRL 143 +#define RSA_F_PKEY_RSA_CTRL_STR 144 +#define RSA_F_PKEY_RSA_SIGN 142 +#define RSA_F_PKEY_RSA_VERIFYRECOVER 141 +#define RSA_F_RSA_BUILTIN_KEYGEN 129 +#define RSA_F_RSA_CHECK_KEY 123 +#define RSA_F_RSA_EAY_PRIVATE_DECRYPT 101 +#define RSA_F_RSA_EAY_PRIVATE_ENCRYPT 102 +#define RSA_F_RSA_EAY_PUBLIC_DECRYPT 103 +#define RSA_F_RSA_EAY_PUBLIC_ENCRYPT 104 +#define RSA_F_RSA_GENERATE_KEY 105 +#define RSA_F_RSA_MEMORY_LOCK 130 +#define RSA_F_RSA_NEW_METHOD 106 +#define RSA_F_RSA_NULL 124 +#define RSA_F_RSA_NULL_MOD_EXP 131 +#define RSA_F_RSA_NULL_PRIVATE_DECRYPT 132 +#define RSA_F_RSA_NULL_PRIVATE_ENCRYPT 133 +#define RSA_F_RSA_NULL_PUBLIC_DECRYPT 134 +#define RSA_F_RSA_NULL_PUBLIC_ENCRYPT 135 +#define RSA_F_RSA_PADDING_ADD_NONE 107 +#define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP 121 +#define RSA_F_RSA_PADDING_ADD_PKCS1_PSS 125 +#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1 108 +#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2 109 +#define RSA_F_RSA_PADDING_ADD_SSLV23 110 +#define RSA_F_RSA_PADDING_ADD_X931 127 +#define RSA_F_RSA_PADDING_CHECK_NONE 111 +#define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP 122 +#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1 112 +#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2 113 +#define RSA_F_RSA_PADDING_CHECK_SSLV23 114 +#define RSA_F_RSA_PADDING_CHECK_X931 128 +#define RSA_F_RSA_PRINT 115 +#define RSA_F_RSA_PRINT_FP 116 +#define RSA_F_RSA_PRIV_DECODE 137 +#define RSA_F_RSA_PRIV_ENCODE 138 +#define RSA_F_RSA_PUB_DECODE 139 +#define RSA_F_RSA_SETUP_BLINDING 136 +#define RSA_F_RSA_SIGN 117 +#define RSA_F_RSA_SIGN_ASN1_OCTET_STRING 118 +#define RSA_F_RSA_VERIFY 119 +#define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING 120 +#define RSA_F_RSA_VERIFY_PKCS1_PSS 126 + +/* Reason codes. */ +#define RSA_R_ALGORITHM_MISMATCH 100 +#define RSA_R_BAD_E_VALUE 101 +#define RSA_R_BAD_FIXED_HEADER_DECRYPT 102 +#define RSA_R_BAD_PAD_BYTE_COUNT 103 +#define RSA_R_BAD_SIGNATURE 104 +#define RSA_R_BLOCK_TYPE_IS_NOT_01 106 +#define RSA_R_BLOCK_TYPE_IS_NOT_02 107 +#define RSA_R_DATA_GREATER_THAN_MOD_LEN 108 +#define RSA_R_DATA_TOO_LARGE 109 +#define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 110 +#define RSA_R_DATA_TOO_LARGE_FOR_MODULUS 132 +#define RSA_R_DATA_TOO_SMALL 111 +#define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE 122 +#define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 112 +#define RSA_R_DMP1_NOT_CONGRUENT_TO_D 124 +#define RSA_R_DMQ1_NOT_CONGRUENT_TO_D 125 +#define RSA_R_D_E_NOT_CONGRUENT_TO_1 123 +#define RSA_R_FIRST_OCTET_INVALID 133 +#define RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE 144 +#define RSA_R_INVALID_DIGEST_LENGTH 143 +#define RSA_R_INVALID_HEADER 137 +#define RSA_R_INVALID_KEYBITS 145 +#define RSA_R_INVALID_MESSAGE_LENGTH 131 +#define RSA_R_INVALID_PADDING 138 +#define RSA_R_INVALID_PADDING_MODE 141 +#define RSA_R_INVALID_PSS_SALTLEN 146 +#define RSA_R_INVALID_TRAILER 139 +#define RSA_R_INVALID_X931_DIGEST 142 +#define RSA_R_IQMP_NOT_INVERSE_OF_Q 126 +#define RSA_R_KEY_SIZE_TOO_SMALL 120 +#define RSA_R_LAST_OCTET_INVALID 134 +#define RSA_R_MODULUS_TOO_LARGE 105 +#define RSA_R_NO_PUBLIC_EXPONENT 140 +#define RSA_R_NULL_BEFORE_BLOCK_MISSING 113 +#define RSA_R_N_DOES_NOT_EQUAL_P_Q 127 +#define RSA_R_OAEP_DECODING_ERROR 121 +#define RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE 148 +#define RSA_R_PADDING_CHECK_FAILED 114 +#define RSA_R_P_NOT_PRIME 128 +#define RSA_R_Q_NOT_PRIME 129 +#define RSA_R_RSA_OPERATIONS_NOT_SUPPORTED 130 +#define RSA_R_SLEN_CHECK_FAILED 136 +#define RSA_R_SLEN_RECOVERY_FAILED 135 +#define RSA_R_SSLV3_ROLLBACK_ATTACK 115 +#define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116 +#define RSA_R_UNKNOWN_ALGORITHM_TYPE 117 +#define RSA_R_UNKNOWN_PADDING_TYPE 118 +#define RSA_R_VALUE_MISSING 147 +#define RSA_R_WRONG_SIGNATURE_LENGTH 119 + +#ifdef __cplusplus +} +#endif +#endif diff --git a/openssl/crypto/rsa/rsa_ameth.c b/openssl/crypto/rsa/rsa_ameth.c new file mode 100644 index 00000000..8c320988 --- /dev/null +++ b/openssl/crypto/rsa/rsa_ameth.c @@ -0,0 +1,349 @@ +/* crypto/rsa/rsa_ameth.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2006. + */ +/* ==================================================================== + * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/asn1t.h> +#include <openssl/x509.h> +#include <openssl/rsa.h> +#include <openssl/bn.h> +#ifndef OPENSSL_NO_CMS +#include <openssl/cms.h> +#endif +#include "asn1_locl.h" + +static int rsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey) + { + unsigned char *penc = NULL; + int penclen; + penclen = i2d_RSAPublicKey(pkey->pkey.rsa, &penc); + if (penclen <= 0) + return 0; + if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_RSA), + V_ASN1_NULL, NULL, penc, penclen)) + return 1; + + OPENSSL_free(penc); + return 0; + } + +static int rsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey) + { + const unsigned char *p; + int pklen; + RSA *rsa = NULL; + if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, NULL, pubkey)) + return 0; + if (!(rsa = d2i_RSAPublicKey(NULL, &p, pklen))) + { + RSAerr(RSA_F_RSA_PUB_DECODE, ERR_R_RSA_LIB); + return 0; + } + EVP_PKEY_assign_RSA (pkey, rsa); + return 1; + } + +static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) + { + if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0 + || BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0) + return 0; + return 1; + } + +static int old_rsa_priv_decode(EVP_PKEY *pkey, + const unsigned char **pder, int derlen) + { + RSA *rsa; + if (!(rsa = d2i_RSAPrivateKey (NULL, pder, derlen))) + { + RSAerr(RSA_F_OLD_RSA_PRIV_DECODE, ERR_R_RSA_LIB); + return 0; + } + EVP_PKEY_assign_RSA(pkey, rsa); + return 1; + } + +static int old_rsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder) + { + return i2d_RSAPrivateKey(pkey->pkey.rsa, pder); + } + +static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) + { + unsigned char *rk = NULL; + int rklen; + rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk); + + if (rklen <= 0) + { + RSAerr(RSA_F_RSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); + return 0; + } + + if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_rsaEncryption), 0, + V_ASN1_NULL, NULL, rk, rklen)) + { + RSAerr(RSA_F_RSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); + return 0; + } + + return 1; + } + +static int rsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8) + { + const unsigned char *p; + int pklen; + if (!PKCS8_pkey_get0(NULL, &p, &pklen, NULL, p8)) + return 0; + return old_rsa_priv_decode(pkey, &p, pklen); + } + +static int int_rsa_size(const EVP_PKEY *pkey) + { + return RSA_size(pkey->pkey.rsa); + } + +static int rsa_bits(const EVP_PKEY *pkey) + { + return BN_num_bits(pkey->pkey.rsa->n); + } + +static void int_rsa_free(EVP_PKEY *pkey) + { + RSA_free(pkey->pkey.rsa); + } + + +static void update_buflen(const BIGNUM *b, size_t *pbuflen) + { + size_t i; + if (!b) + return; + if (*pbuflen < (i = (size_t)BN_num_bytes(b))) + *pbuflen = i; + } + +static int do_rsa_print(BIO *bp, const RSA *x, int off, int priv) + { + char *str; + const char *s; + unsigned char *m=NULL; + int ret=0, mod_len = 0; + size_t buf_len=0; + + update_buflen(x->n, &buf_len); + update_buflen(x->e, &buf_len); + + if (priv) + { + update_buflen(x->d, &buf_len); + update_buflen(x->p, &buf_len); + update_buflen(x->q, &buf_len); + update_buflen(x->dmp1, &buf_len); + update_buflen(x->dmq1, &buf_len); + update_buflen(x->iqmp, &buf_len); + } + + m=(unsigned char *)OPENSSL_malloc(buf_len+10); + if (m == NULL) + { + RSAerr(RSA_F_DO_RSA_PRINT,ERR_R_MALLOC_FAILURE); + goto err; + } + + if (x->n != NULL) + mod_len = BN_num_bits(x->n); + + if(!BIO_indent(bp,off,128)) + goto err; + + if (priv && x->d) + { + if (BIO_printf(bp,"Private-Key: (%d bit)\n", mod_len) + <= 0) goto err; + str = "modulus:"; + s = "publicExponent:"; + } + else + { + if (BIO_printf(bp,"Public-Key: (%d bit)\n", mod_len) + <= 0) goto err; + str = "Modulus:"; + s= "Exponent:"; + } + if (!ASN1_bn_print(bp,str,x->n,m,off)) goto err; + if (!ASN1_bn_print(bp,s,x->e,m,off)) + goto err; + if (priv) + { + if (!ASN1_bn_print(bp,"privateExponent:",x->d,m,off)) + goto err; + if (!ASN1_bn_print(bp,"prime1:",x->p,m,off)) + goto err; + if (!ASN1_bn_print(bp,"prime2:",x->q,m,off)) + goto err; + if (!ASN1_bn_print(bp,"exponent1:",x->dmp1,m,off)) + goto err; + if (!ASN1_bn_print(bp,"exponent2:",x->dmq1,m,off)) + goto err; + if (!ASN1_bn_print(bp,"coefficient:",x->iqmp,m,off)) + goto err; + } + ret=1; +err: + if (m != NULL) OPENSSL_free(m); + return(ret); + } + +static int rsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_rsa_print(bp, pkey->pkey.rsa, indent, 0); + } + + +static int rsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_rsa_print(bp, pkey->pkey.rsa, indent, 1); + } + + +static int rsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2) + { + X509_ALGOR *alg = NULL; + switch (op) + { + + case ASN1_PKEY_CTRL_PKCS7_SIGN: + if (arg1 == 0) + PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, NULL, &alg); + break; + + case ASN1_PKEY_CTRL_PKCS7_ENCRYPT: + if (arg1 == 0) + PKCS7_RECIP_INFO_get0_alg(arg2, &alg); + break; +#ifndef OPENSSL_NO_CMS + case ASN1_PKEY_CTRL_CMS_SIGN: + if (arg1 == 0) + CMS_SignerInfo_get0_algs(arg2, NULL, NULL, NULL, &alg); + break; + + case ASN1_PKEY_CTRL_CMS_ENVELOPE: + if (arg1 == 0) + CMS_RecipientInfo_ktri_get0_algs(arg2, NULL, NULL, &alg); + break; +#endif + + case ASN1_PKEY_CTRL_DEFAULT_MD_NID: + *(int *)arg2 = NID_sha1; + return 1; + + default: + return -2; + + } + + if (alg) + X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), + V_ASN1_NULL, 0); + + return 1; + + } + + +const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[] = + { + { + EVP_PKEY_RSA, + EVP_PKEY_RSA, + ASN1_PKEY_SIGPARAM_NULL, + + "RSA", + "OpenSSL RSA method", + + rsa_pub_decode, + rsa_pub_encode, + rsa_pub_cmp, + rsa_pub_print, + + rsa_priv_decode, + rsa_priv_encode, + rsa_priv_print, + + int_rsa_size, + rsa_bits, + + 0,0,0,0,0,0, + + int_rsa_free, + rsa_pkey_ctrl, + old_rsa_priv_decode, + old_rsa_priv_encode + }, + + { + EVP_PKEY_RSA2, + EVP_PKEY_RSA, + ASN1_PKEY_ALIAS + } + }; diff --git a/openssl/crypto/rsa/rsa_asn1.c b/openssl/crypto/rsa/rsa_asn1.c new file mode 100644 index 00000000..4efca8cd --- /dev/null +++ b/openssl/crypto/rsa/rsa_asn1.c @@ -0,0 +1,111 @@ +/* rsa_asn1.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2000. + */ +/* ==================================================================== + * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/asn1t.h> + +/* Override the default free and new methods */ +static int rsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, + void *exarg) +{ + if(operation == ASN1_OP_NEW_PRE) { + *pval = (ASN1_VALUE *)RSA_new(); + if(*pval) return 2; + return 0; + } else if(operation == ASN1_OP_FREE_PRE) { + RSA_free((RSA *)*pval); + *pval = NULL; + return 2; + } + return 1; +} + +ASN1_SEQUENCE_cb(RSAPrivateKey, rsa_cb) = { + ASN1_SIMPLE(RSA, version, LONG), + ASN1_SIMPLE(RSA, n, BIGNUM), + ASN1_SIMPLE(RSA, e, BIGNUM), + ASN1_SIMPLE(RSA, d, BIGNUM), + ASN1_SIMPLE(RSA, p, BIGNUM), + ASN1_SIMPLE(RSA, q, BIGNUM), + ASN1_SIMPLE(RSA, dmp1, BIGNUM), + ASN1_SIMPLE(RSA, dmq1, BIGNUM), + ASN1_SIMPLE(RSA, iqmp, BIGNUM) +} ASN1_SEQUENCE_END_cb(RSA, RSAPrivateKey) + + +ASN1_SEQUENCE_cb(RSAPublicKey, rsa_cb) = { + ASN1_SIMPLE(RSA, n, BIGNUM), + ASN1_SIMPLE(RSA, e, BIGNUM), +} ASN1_SEQUENCE_END_cb(RSA, RSAPublicKey) + +IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(RSA, RSAPrivateKey, RSAPrivateKey) + +IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(RSA, RSAPublicKey, RSAPublicKey) + +RSA *RSAPublicKey_dup(RSA *rsa) + { + return ASN1_item_dup(ASN1_ITEM_rptr(RSAPublicKey), rsa); + } + +RSA *RSAPrivateKey_dup(RSA *rsa) + { + return ASN1_item_dup(ASN1_ITEM_rptr(RSAPrivateKey), rsa); + } diff --git a/openssl/crypto/rsa/rsa_chk.c b/openssl/crypto/rsa/rsa_chk.c new file mode 100644 index 00000000..9d848db8 --- /dev/null +++ b/openssl/crypto/rsa/rsa_chk.c @@ -0,0 +1,184 @@ +/* crypto/rsa/rsa_chk.c -*- Mode: C; c-file-style: "eay" -*- */ +/* ==================================================================== + * Copyright (c) 1999 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + */ + +#include <openssl/bn.h> +#include <openssl/err.h> +#include <openssl/rsa.h> + + +int RSA_check_key(const RSA *key) + { + BIGNUM *i, *j, *k, *l, *m; + BN_CTX *ctx; + int r; + int ret=1; + + i = BN_new(); + j = BN_new(); + k = BN_new(); + l = BN_new(); + m = BN_new(); + ctx = BN_CTX_new(); + if (i == NULL || j == NULL || k == NULL || l == NULL || + m == NULL || ctx == NULL) + { + ret = -1; + RSAerr(RSA_F_RSA_CHECK_KEY, ERR_R_MALLOC_FAILURE); + goto err; + } + + /* p prime? */ + r = BN_is_prime_ex(key->p, BN_prime_checks, NULL, NULL); + if (r != 1) + { + ret = r; + if (r != 0) + goto err; + RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_P_NOT_PRIME); + } + + /* q prime? */ + r = BN_is_prime_ex(key->q, BN_prime_checks, NULL, NULL); + if (r != 1) + { + ret = r; + if (r != 0) + goto err; + RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_Q_NOT_PRIME); + } + + /* n = p*q? */ + r = BN_mul(i, key->p, key->q, ctx); + if (!r) { ret = -1; goto err; } + + if (BN_cmp(i, key->n) != 0) + { + ret = 0; + RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_N_DOES_NOT_EQUAL_P_Q); + } + + /* d*e = 1 mod lcm(p-1,q-1)? */ + + r = BN_sub(i, key->p, BN_value_one()); + if (!r) { ret = -1; goto err; } + r = BN_sub(j, key->q, BN_value_one()); + if (!r) { ret = -1; goto err; } + + /* now compute k = lcm(i,j) */ + r = BN_mul(l, i, j, ctx); + if (!r) { ret = -1; goto err; } + r = BN_gcd(m, i, j, ctx); + if (!r) { ret = -1; goto err; } + r = BN_div(k, NULL, l, m, ctx); /* remainder is 0 */ + if (!r) { ret = -1; goto err; } + + r = BN_mod_mul(i, key->d, key->e, k, ctx); + if (!r) { ret = -1; goto err; } + + if (!BN_is_one(i)) + { + ret = 0; + RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_D_E_NOT_CONGRUENT_TO_1); + } + + if (key->dmp1 != NULL && key->dmq1 != NULL && key->iqmp != NULL) + { + /* dmp1 = d mod (p-1)? */ + r = BN_sub(i, key->p, BN_value_one()); + if (!r) { ret = -1; goto err; } + + r = BN_mod(j, key->d, i, ctx); + if (!r) { ret = -1; goto err; } + + if (BN_cmp(j, key->dmp1) != 0) + { + ret = 0; + RSAerr(RSA_F_RSA_CHECK_KEY, + RSA_R_DMP1_NOT_CONGRUENT_TO_D); + } + + /* dmq1 = d mod (q-1)? */ + r = BN_sub(i, key->q, BN_value_one()); + if (!r) { ret = -1; goto err; } + + r = BN_mod(j, key->d, i, ctx); + if (!r) { ret = -1; goto err; } + + if (BN_cmp(j, key->dmq1) != 0) + { + ret = 0; + RSAerr(RSA_F_RSA_CHECK_KEY, + RSA_R_DMQ1_NOT_CONGRUENT_TO_D); + } + + /* iqmp = q^-1 mod p? */ + if(!BN_mod_inverse(i, key->q, key->p, ctx)) + { + ret = -1; + goto err; + } + + if (BN_cmp(i, key->iqmp) != 0) + { + ret = 0; + RSAerr(RSA_F_RSA_CHECK_KEY, + RSA_R_IQMP_NOT_INVERSE_OF_Q); + } + } + + err: + if (i != NULL) BN_free(i); + if (j != NULL) BN_free(j); + if (k != NULL) BN_free(k); + if (l != NULL) BN_free(l); + if (m != NULL) BN_free(m); + if (ctx != NULL) BN_CTX_free(ctx); + return (ret); + } diff --git a/openssl/crypto/rsa/rsa_depr.c b/openssl/crypto/rsa/rsa_depr.c new file mode 100644 index 00000000..a859ded9 --- /dev/null +++ b/openssl/crypto/rsa/rsa_depr.c @@ -0,0 +1,101 @@ +/* crypto/rsa/rsa_depr.c */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +/* NB: This file contains deprecated functions (compatibility wrappers to the + * "new" versions). */ + +#include <stdio.h> +#include <time.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> + +#ifdef OPENSSL_NO_DEPRECATED + +static void *dummy=&dummy; + +#else + +RSA *RSA_generate_key(int bits, unsigned long e_value, + void (*callback)(int,int,void *), void *cb_arg) + { + BN_GENCB cb; + int i; + RSA *rsa = RSA_new(); + BIGNUM *e = BN_new(); + + if(!rsa || !e) goto err; + + /* The problem is when building with 8, 16, or 32 BN_ULONG, + * unsigned long can be larger */ + for (i=0; i<(int)sizeof(unsigned long)*8; i++) + { + if (e_value & (1UL<<i)) + if (BN_set_bit(e,i) == 0) + goto err; + } + + BN_GENCB_set_old(&cb, callback, cb_arg); + + if(RSA_generate_key_ex(rsa, bits, e, &cb)) { + BN_free(e); + return rsa; + } +err: + if(e) BN_free(e); + if(rsa) RSA_free(rsa); + return 0; + } +#endif diff --git a/openssl/crypto/rsa/rsa_eay.c b/openssl/crypto/rsa/rsa_eay.c new file mode 100644 index 00000000..7c941885 --- /dev/null +++ b/openssl/crypto/rsa/rsa_eay.c @@ -0,0 +1,893 @@ +/* crypto/rsa/rsa_eay.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/rand.h> + +#ifndef RSA_NULL + +static int RSA_eay_public_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +static int RSA_eay_private_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +static int RSA_eay_public_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +static int RSA_eay_private_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +static int RSA_eay_mod_exp(BIGNUM *r0, const BIGNUM *i, RSA *rsa, BN_CTX *ctx); +static int RSA_eay_init(RSA *rsa); +static int RSA_eay_finish(RSA *rsa); +static RSA_METHOD rsa_pkcs1_eay_meth={ + "Eric Young's PKCS#1 RSA", + RSA_eay_public_encrypt, + RSA_eay_public_decrypt, /* signature verification */ + RSA_eay_private_encrypt, /* signing */ + RSA_eay_private_decrypt, + RSA_eay_mod_exp, + BN_mod_exp_mont, /* XXX probably we should not use Montgomery if e == 3 */ + RSA_eay_init, + RSA_eay_finish, + 0, /* flags */ + NULL, + 0, /* rsa_sign */ + 0, /* rsa_verify */ + NULL /* rsa_keygen */ + }; + +const RSA_METHOD *RSA_PKCS1_SSLeay(void) + { + return(&rsa_pkcs1_eay_meth); + } + +static int RSA_eay_public_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + BIGNUM *f,*ret; + int i,j,k,num=0,r= -1; + unsigned char *buf=NULL; + BN_CTX *ctx=NULL; + + if (BN_num_bits(rsa->n) > OPENSSL_RSA_MAX_MODULUS_BITS) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_MODULUS_TOO_LARGE); + return -1; + } + + if (BN_ucmp(rsa->n, rsa->e) <= 0) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_BAD_E_VALUE); + return -1; + } + + /* for large moduli, enforce exponent limit */ + if (BN_num_bits(rsa->n) > OPENSSL_RSA_SMALL_MODULUS_BITS) + { + if (BN_num_bits(rsa->e) > OPENSSL_RSA_MAX_PUBEXP_BITS) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_BAD_E_VALUE); + return -1; + } + } + + if ((ctx=BN_CTX_new()) == NULL) goto err; + BN_CTX_start(ctx); + f = BN_CTX_get(ctx); + ret = BN_CTX_get(ctx); + num=BN_num_bytes(rsa->n); + buf = OPENSSL_malloc(num); + if (!f || !ret || !buf) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,ERR_R_MALLOC_FAILURE); + goto err; + } + + switch (padding) + { + case RSA_PKCS1_PADDING: + i=RSA_padding_add_PKCS1_type_2(buf,num,from,flen); + break; +#ifndef OPENSSL_NO_SHA + case RSA_PKCS1_OAEP_PADDING: + i=RSA_padding_add_PKCS1_OAEP(buf,num,from,flen,NULL,0); + break; +#endif + case RSA_SSLV23_PADDING: + i=RSA_padding_add_SSLv23(buf,num,from,flen); + break; + case RSA_NO_PADDING: + i=RSA_padding_add_none(buf,num,from,flen); + break; + default: + RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE); + goto err; + } + if (i <= 0) goto err; + + if (BN_bin2bn(buf,num,f) == NULL) goto err; + + if (BN_ucmp(f, rsa->n) >= 0) + { + /* usually the padding functions would catch this */ + RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS); + goto err; + } + + if (rsa->flags & RSA_FLAG_CACHE_PUBLIC) + if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx)) + goto err; + + if (!rsa->meth->bn_mod_exp(ret,f,rsa->e,rsa->n,ctx, + rsa->_method_mod_n)) goto err; + + /* put in leading 0 bytes if the number is less than the + * length of the modulus */ + j=BN_num_bytes(ret); + i=BN_bn2bin(ret,&(to[num-j])); + for (k=0; k<(num-i); k++) + to[k]=0; + + r=num; +err: + if (ctx != NULL) + { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + if (buf != NULL) + { + OPENSSL_cleanse(buf,num); + OPENSSL_free(buf); + } + return(r); + } + +static BN_BLINDING *rsa_get_blinding(RSA *rsa, int *local, BN_CTX *ctx) +{ + BN_BLINDING *ret; + int got_write_lock = 0; + CRYPTO_THREADID cur; + + CRYPTO_r_lock(CRYPTO_LOCK_RSA); + + if (rsa->blinding == NULL) + { + CRYPTO_r_unlock(CRYPTO_LOCK_RSA); + CRYPTO_w_lock(CRYPTO_LOCK_RSA); + got_write_lock = 1; + + if (rsa->blinding == NULL) + rsa->blinding = RSA_setup_blinding(rsa, ctx); + } + + ret = rsa->blinding; + if (ret == NULL) + goto err; + + CRYPTO_THREADID_current(&cur); + if (!CRYPTO_THREADID_cmp(&cur, BN_BLINDING_thread_id(ret))) + { + /* rsa->blinding is ours! */ + + *local = 1; + } + else + { + /* resort to rsa->mt_blinding instead */ + + *local = 0; /* instructs rsa_blinding_convert(), rsa_blinding_invert() + * that the BN_BLINDING is shared, meaning that accesses + * require locks, and that the blinding factor must be + * stored outside the BN_BLINDING + */ + + if (rsa->mt_blinding == NULL) + { + if (!got_write_lock) + { + CRYPTO_r_unlock(CRYPTO_LOCK_RSA); + CRYPTO_w_lock(CRYPTO_LOCK_RSA); + got_write_lock = 1; + } + + if (rsa->mt_blinding == NULL) + rsa->mt_blinding = RSA_setup_blinding(rsa, ctx); + } + ret = rsa->mt_blinding; + } + + err: + if (got_write_lock) + CRYPTO_w_unlock(CRYPTO_LOCK_RSA); + else + CRYPTO_r_unlock(CRYPTO_LOCK_RSA); + return ret; +} + +static int rsa_blinding_convert(BN_BLINDING *b, int local, BIGNUM *f, + BIGNUM *r, BN_CTX *ctx) +{ + if (local) + return BN_BLINDING_convert_ex(f, NULL, b, ctx); + else + { + int ret; + CRYPTO_r_lock(CRYPTO_LOCK_RSA_BLINDING); + ret = BN_BLINDING_convert_ex(f, r, b, ctx); + CRYPTO_r_unlock(CRYPTO_LOCK_RSA_BLINDING); + return ret; + } +} + +static int rsa_blinding_invert(BN_BLINDING *b, int local, BIGNUM *f, + BIGNUM *r, BN_CTX *ctx) +{ + if (local) + return BN_BLINDING_invert_ex(f, NULL, b, ctx); + else + { + int ret; + CRYPTO_w_lock(CRYPTO_LOCK_RSA_BLINDING); + ret = BN_BLINDING_invert_ex(f, r, b, ctx); + CRYPTO_w_unlock(CRYPTO_LOCK_RSA_BLINDING); + return ret; + } +} + +/* signing */ +static int RSA_eay_private_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + BIGNUM *f, *ret, *br, *res; + int i,j,k,num=0,r= -1; + unsigned char *buf=NULL; + BN_CTX *ctx=NULL; + int local_blinding = 0; + BN_BLINDING *blinding = NULL; + + if ((ctx=BN_CTX_new()) == NULL) goto err; + BN_CTX_start(ctx); + f = BN_CTX_get(ctx); + br = BN_CTX_get(ctx); + ret = BN_CTX_get(ctx); + num = BN_num_bytes(rsa->n); + buf = OPENSSL_malloc(num); + if(!f || !ret || !buf) + { + RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,ERR_R_MALLOC_FAILURE); + goto err; + } + + switch (padding) + { + case RSA_PKCS1_PADDING: + i=RSA_padding_add_PKCS1_type_1(buf,num,from,flen); + break; + case RSA_X931_PADDING: + i=RSA_padding_add_X931(buf,num,from,flen); + break; + case RSA_NO_PADDING: + i=RSA_padding_add_none(buf,num,from,flen); + break; + case RSA_SSLV23_PADDING: + default: + RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE); + goto err; + } + if (i <= 0) goto err; + + if (BN_bin2bn(buf,num,f) == NULL) goto err; + + if (BN_ucmp(f, rsa->n) >= 0) + { + /* usually the padding functions would catch this */ + RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS); + goto err; + } + + if (!(rsa->flags & RSA_FLAG_NO_BLINDING)) + { + blinding = rsa_get_blinding(rsa, &local_blinding, ctx); + if (blinding == NULL) + { + RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, ERR_R_INTERNAL_ERROR); + goto err; + } + } + + if (blinding != NULL) + if (!rsa_blinding_convert(blinding, local_blinding, f, br, ctx)) + goto err; + + if ( (rsa->flags & RSA_FLAG_EXT_PKEY) || + ((rsa->p != NULL) && + (rsa->q != NULL) && + (rsa->dmp1 != NULL) && + (rsa->dmq1 != NULL) && + (rsa->iqmp != NULL)) ) + { + if (!rsa->meth->rsa_mod_exp(ret, f, rsa, ctx)) goto err; + } + else + { + BIGNUM local_d; + BIGNUM *d = NULL; + + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + BN_init(&local_d); + d = &local_d; + BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME); + } + else + d= rsa->d; + + if (rsa->flags & RSA_FLAG_CACHE_PUBLIC) + if(!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx)) + goto err; + + if (!rsa->meth->bn_mod_exp(ret,f,d,rsa->n,ctx, + rsa->_method_mod_n)) goto err; + } + + if (blinding) + if (!rsa_blinding_invert(blinding, local_blinding, ret, br, ctx)) + goto err; + + if (padding == RSA_X931_PADDING) + { + BN_sub(f, rsa->n, ret); + if (BN_cmp(ret, f)) + res = f; + else + res = ret; + } + else + res = ret; + + /* put in leading 0 bytes if the number is less than the + * length of the modulus */ + j=BN_num_bytes(res); + i=BN_bn2bin(res,&(to[num-j])); + for (k=0; k<(num-i); k++) + to[k]=0; + + r=num; +err: + if (ctx != NULL) + { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + if (buf != NULL) + { + OPENSSL_cleanse(buf,num); + OPENSSL_free(buf); + } + return(r); + } + +static int RSA_eay_private_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + BIGNUM *f, *ret, *br; + int j,num=0,r= -1; + unsigned char *p; + unsigned char *buf=NULL; + BN_CTX *ctx=NULL; + int local_blinding = 0; + BN_BLINDING *blinding = NULL; + + if((ctx = BN_CTX_new()) == NULL) goto err; + BN_CTX_start(ctx); + f = BN_CTX_get(ctx); + br = BN_CTX_get(ctx); + ret = BN_CTX_get(ctx); + num = BN_num_bytes(rsa->n); + buf = OPENSSL_malloc(num); + if(!f || !ret || !buf) + { + RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,ERR_R_MALLOC_FAILURE); + goto err; + } + + /* This check was for equality but PGP does evil things + * and chops off the top '0' bytes */ + if (flen > num) + { + RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_DATA_GREATER_THAN_MOD_LEN); + goto err; + } + + /* make data into a big number */ + if (BN_bin2bn(from,(int)flen,f) == NULL) goto err; + + if (BN_ucmp(f, rsa->n) >= 0) + { + RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS); + goto err; + } + + if (!(rsa->flags & RSA_FLAG_NO_BLINDING)) + { + blinding = rsa_get_blinding(rsa, &local_blinding, ctx); + if (blinding == NULL) + { + RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT, ERR_R_INTERNAL_ERROR); + goto err; + } + } + + if (blinding != NULL) + if (!rsa_blinding_convert(blinding, local_blinding, f, br, ctx)) + goto err; + + /* do the decrypt */ + if ( (rsa->flags & RSA_FLAG_EXT_PKEY) || + ((rsa->p != NULL) && + (rsa->q != NULL) && + (rsa->dmp1 != NULL) && + (rsa->dmq1 != NULL) && + (rsa->iqmp != NULL)) ) + { + if (!rsa->meth->rsa_mod_exp(ret, f, rsa, ctx)) goto err; + } + else + { + BIGNUM local_d; + BIGNUM *d = NULL; + + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + d = &local_d; + BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME); + } + else + d = rsa->d; + + if (rsa->flags & RSA_FLAG_CACHE_PUBLIC) + if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx)) + goto err; + if (!rsa->meth->bn_mod_exp(ret,f,d,rsa->n,ctx, + rsa->_method_mod_n)) + goto err; + } + + if (blinding) + if (!rsa_blinding_invert(blinding, local_blinding, ret, br, ctx)) + goto err; + + p=buf; + j=BN_bn2bin(ret,p); /* j is only used with no-padding mode */ + + switch (padding) + { + case RSA_PKCS1_PADDING: + r=RSA_padding_check_PKCS1_type_2(to,num,buf,j,num); + break; +#ifndef OPENSSL_NO_SHA + case RSA_PKCS1_OAEP_PADDING: + r=RSA_padding_check_PKCS1_OAEP(to,num,buf,j,num,NULL,0); + break; +#endif + case RSA_SSLV23_PADDING: + r=RSA_padding_check_SSLv23(to,num,buf,j,num); + break; + case RSA_NO_PADDING: + r=RSA_padding_check_none(to,num,buf,j,num); + break; + default: + RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_UNKNOWN_PADDING_TYPE); + goto err; + } + if (r < 0) + RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_PADDING_CHECK_FAILED); + +err: + if (ctx != NULL) + { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + if (buf != NULL) + { + OPENSSL_cleanse(buf,num); + OPENSSL_free(buf); + } + return(r); + } + +/* signature verification */ +static int RSA_eay_public_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + BIGNUM *f,*ret; + int i,num=0,r= -1; + unsigned char *p; + unsigned char *buf=NULL; + BN_CTX *ctx=NULL; + + if (BN_num_bits(rsa->n) > OPENSSL_RSA_MAX_MODULUS_BITS) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_MODULUS_TOO_LARGE); + return -1; + } + + if (BN_ucmp(rsa->n, rsa->e) <= 0) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_BAD_E_VALUE); + return -1; + } + + /* for large moduli, enforce exponent limit */ + if (BN_num_bits(rsa->n) > OPENSSL_RSA_SMALL_MODULUS_BITS) + { + if (BN_num_bits(rsa->e) > OPENSSL_RSA_MAX_PUBEXP_BITS) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_BAD_E_VALUE); + return -1; + } + } + + if((ctx = BN_CTX_new()) == NULL) goto err; + BN_CTX_start(ctx); + f = BN_CTX_get(ctx); + ret = BN_CTX_get(ctx); + num=BN_num_bytes(rsa->n); + buf = OPENSSL_malloc(num); + if(!f || !ret || !buf) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,ERR_R_MALLOC_FAILURE); + goto err; + } + + /* This check was for equality but PGP does evil things + * and chops off the top '0' bytes */ + if (flen > num) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_DATA_GREATER_THAN_MOD_LEN); + goto err; + } + + if (BN_bin2bn(from,flen,f) == NULL) goto err; + + if (BN_ucmp(f, rsa->n) >= 0) + { + RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS); + goto err; + } + + if (rsa->flags & RSA_FLAG_CACHE_PUBLIC) + if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx)) + goto err; + + if (!rsa->meth->bn_mod_exp(ret,f,rsa->e,rsa->n,ctx, + rsa->_method_mod_n)) goto err; + + if ((padding == RSA_X931_PADDING) && ((ret->d[0] & 0xf) != 12)) + if (!BN_sub(ret, rsa->n, ret)) goto err; + + p=buf; + i=BN_bn2bin(ret,p); + + switch (padding) + { + case RSA_PKCS1_PADDING: + r=RSA_padding_check_PKCS1_type_1(to,num,buf,i,num); + break; + case RSA_X931_PADDING: + r=RSA_padding_check_X931(to,num,buf,i,num); + break; + case RSA_NO_PADDING: + r=RSA_padding_check_none(to,num,buf,i,num); + break; + default: + RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_UNKNOWN_PADDING_TYPE); + goto err; + } + if (r < 0) + RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_PADDING_CHECK_FAILED); + +err: + if (ctx != NULL) + { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + if (buf != NULL) + { + OPENSSL_cleanse(buf,num); + OPENSSL_free(buf); + } + return(r); + } + +static int RSA_eay_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx) + { + BIGNUM *r1,*m1,*vrfy; + BIGNUM local_dmp1,local_dmq1,local_c,local_r1; + BIGNUM *dmp1,*dmq1,*c,*pr1; + int ret=0; + + BN_CTX_start(ctx); + r1 = BN_CTX_get(ctx); + m1 = BN_CTX_get(ctx); + vrfy = BN_CTX_get(ctx); + + { + BIGNUM local_p, local_q; + BIGNUM *p = NULL, *q = NULL; + + /* Make sure BN_mod_inverse in Montgomery intialization uses the + * BN_FLG_CONSTTIME flag (unless RSA_FLAG_NO_CONSTTIME is set) + */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + BN_init(&local_p); + p = &local_p; + BN_with_flags(p, rsa->p, BN_FLG_CONSTTIME); + + BN_init(&local_q); + q = &local_q; + BN_with_flags(q, rsa->q, BN_FLG_CONSTTIME); + } + else + { + p = rsa->p; + q = rsa->q; + } + + if (rsa->flags & RSA_FLAG_CACHE_PRIVATE) + { + if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_p, CRYPTO_LOCK_RSA, p, ctx)) + goto err; + if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_q, CRYPTO_LOCK_RSA, q, ctx)) + goto err; + } + } + + if (rsa->flags & RSA_FLAG_CACHE_PUBLIC) + if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx)) + goto err; + + /* compute I mod q */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + c = &local_c; + BN_with_flags(c, I, BN_FLG_CONSTTIME); + if (!BN_mod(r1,c,rsa->q,ctx)) goto err; + } + else + { + if (!BN_mod(r1,I,rsa->q,ctx)) goto err; + } + + /* compute r1^dmq1 mod q */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + dmq1 = &local_dmq1; + BN_with_flags(dmq1, rsa->dmq1, BN_FLG_CONSTTIME); + } + else + dmq1 = rsa->dmq1; + if (!rsa->meth->bn_mod_exp(m1,r1,dmq1,rsa->q,ctx, + rsa->_method_mod_q)) goto err; + + /* compute I mod p */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + c = &local_c; + BN_with_flags(c, I, BN_FLG_CONSTTIME); + if (!BN_mod(r1,c,rsa->p,ctx)) goto err; + } + else + { + if (!BN_mod(r1,I,rsa->p,ctx)) goto err; + } + + /* compute r1^dmp1 mod p */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + dmp1 = &local_dmp1; + BN_with_flags(dmp1, rsa->dmp1, BN_FLG_CONSTTIME); + } + else + dmp1 = rsa->dmp1; + if (!rsa->meth->bn_mod_exp(r0,r1,dmp1,rsa->p,ctx, + rsa->_method_mod_p)) goto err; + + if (!BN_sub(r0,r0,m1)) goto err; + /* This will help stop the size of r0 increasing, which does + * affect the multiply if it optimised for a power of 2 size */ + if (BN_is_negative(r0)) + if (!BN_add(r0,r0,rsa->p)) goto err; + + if (!BN_mul(r1,r0,rsa->iqmp,ctx)) goto err; + + /* Turn BN_FLG_CONSTTIME flag on before division operation */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + pr1 = &local_r1; + BN_with_flags(pr1, r1, BN_FLG_CONSTTIME); + } + else + pr1 = r1; + if (!BN_mod(r0,pr1,rsa->p,ctx)) goto err; + + /* If p < q it is occasionally possible for the correction of + * adding 'p' if r0 is negative above to leave the result still + * negative. This can break the private key operations: the following + * second correction should *always* correct this rare occurrence. + * This will *never* happen with OpenSSL generated keys because + * they ensure p > q [steve] + */ + if (BN_is_negative(r0)) + if (!BN_add(r0,r0,rsa->p)) goto err; + if (!BN_mul(r1,r0,rsa->q,ctx)) goto err; + if (!BN_add(r0,r1,m1)) goto err; + + if (rsa->e && rsa->n) + { + if (!rsa->meth->bn_mod_exp(vrfy,r0,rsa->e,rsa->n,ctx,rsa->_method_mod_n)) goto err; + /* If 'I' was greater than (or equal to) rsa->n, the operation + * will be equivalent to using 'I mod n'. However, the result of + * the verify will *always* be less than 'n' so we don't check + * for absolute equality, just congruency. */ + if (!BN_sub(vrfy, vrfy, I)) goto err; + if (!BN_mod(vrfy, vrfy, rsa->n, ctx)) goto err; + if (BN_is_negative(vrfy)) + if (!BN_add(vrfy, vrfy, rsa->n)) goto err; + if (!BN_is_zero(vrfy)) + { + /* 'I' and 'vrfy' aren't congruent mod n. Don't leak + * miscalculated CRT output, just do a raw (slower) + * mod_exp and return that instead. */ + + BIGNUM local_d; + BIGNUM *d = NULL; + + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + d = &local_d; + BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME); + } + else + d = rsa->d; + if (!rsa->meth->bn_mod_exp(r0,I,d,rsa->n,ctx, + rsa->_method_mod_n)) goto err; + } + } + ret=1; +err: + BN_CTX_end(ctx); + return(ret); + } + +static int RSA_eay_init(RSA *rsa) + { + rsa->flags|=RSA_FLAG_CACHE_PUBLIC|RSA_FLAG_CACHE_PRIVATE; + return(1); + } + +static int RSA_eay_finish(RSA *rsa) + { + if (rsa->_method_mod_n != NULL) + BN_MONT_CTX_free(rsa->_method_mod_n); + if (rsa->_method_mod_p != NULL) + BN_MONT_CTX_free(rsa->_method_mod_p); + if (rsa->_method_mod_q != NULL) + BN_MONT_CTX_free(rsa->_method_mod_q); + return(1); + } + +#endif diff --git a/openssl/crypto/rsa/rsa_err.c b/openssl/crypto/rsa/rsa_err.c new file mode 100644 index 00000000..cf9f1106 --- /dev/null +++ b/openssl/crypto/rsa/rsa_err.c @@ -0,0 +1,190 @@ +/* crypto/rsa/rsa_err.c */ +/* ==================================================================== + * Copyright (c) 1999-2008 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +/* NOTE: this file was auto generated by the mkerr.pl script: any changes + * made to it will be overwritten when the script next updates this file, + * only reason strings will be preserved. + */ + +#include <stdio.h> +#include <openssl/err.h> +#include <openssl/rsa.h> + +/* BEGIN ERROR CODES */ +#ifndef OPENSSL_NO_ERR + +#define ERR_FUNC(func) ERR_PACK(ERR_LIB_RSA,func,0) +#define ERR_REASON(reason) ERR_PACK(ERR_LIB_RSA,0,reason) + +static ERR_STRING_DATA RSA_str_functs[]= + { +{ERR_FUNC(RSA_F_CHECK_PADDING_MD), "CHECK_PADDING_MD"}, +{ERR_FUNC(RSA_F_DO_RSA_PRINT), "DO_RSA_PRINT"}, +{ERR_FUNC(RSA_F_INT_RSA_VERIFY), "INT_RSA_VERIFY"}, +{ERR_FUNC(RSA_F_MEMORY_LOCK), "MEMORY_LOCK"}, +{ERR_FUNC(RSA_F_OLD_RSA_PRIV_DECODE), "OLD_RSA_PRIV_DECODE"}, +{ERR_FUNC(RSA_F_PKEY_RSA_CTRL), "PKEY_RSA_CTRL"}, +{ERR_FUNC(RSA_F_PKEY_RSA_CTRL_STR), "PKEY_RSA_CTRL_STR"}, +{ERR_FUNC(RSA_F_PKEY_RSA_SIGN), "PKEY_RSA_SIGN"}, +{ERR_FUNC(RSA_F_PKEY_RSA_VERIFYRECOVER), "PKEY_RSA_VERIFYRECOVER"}, +{ERR_FUNC(RSA_F_RSA_BUILTIN_KEYGEN), "RSA_BUILTIN_KEYGEN"}, +{ERR_FUNC(RSA_F_RSA_CHECK_KEY), "RSA_check_key"}, +{ERR_FUNC(RSA_F_RSA_EAY_PRIVATE_DECRYPT), "RSA_EAY_PRIVATE_DECRYPT"}, +{ERR_FUNC(RSA_F_RSA_EAY_PRIVATE_ENCRYPT), "RSA_EAY_PRIVATE_ENCRYPT"}, +{ERR_FUNC(RSA_F_RSA_EAY_PUBLIC_DECRYPT), "RSA_EAY_PUBLIC_DECRYPT"}, +{ERR_FUNC(RSA_F_RSA_EAY_PUBLIC_ENCRYPT), "RSA_EAY_PUBLIC_ENCRYPT"}, +{ERR_FUNC(RSA_F_RSA_GENERATE_KEY), "RSA_generate_key"}, +{ERR_FUNC(RSA_F_RSA_MEMORY_LOCK), "RSA_memory_lock"}, +{ERR_FUNC(RSA_F_RSA_NEW_METHOD), "RSA_new_method"}, +{ERR_FUNC(RSA_F_RSA_NULL), "RSA_NULL"}, +{ERR_FUNC(RSA_F_RSA_NULL_MOD_EXP), "RSA_NULL_MOD_EXP"}, +{ERR_FUNC(RSA_F_RSA_NULL_PRIVATE_DECRYPT), "RSA_NULL_PRIVATE_DECRYPT"}, +{ERR_FUNC(RSA_F_RSA_NULL_PRIVATE_ENCRYPT), "RSA_NULL_PRIVATE_ENCRYPT"}, +{ERR_FUNC(RSA_F_RSA_NULL_PUBLIC_DECRYPT), "RSA_NULL_PUBLIC_DECRYPT"}, +{ERR_FUNC(RSA_F_RSA_NULL_PUBLIC_ENCRYPT), "RSA_NULL_PUBLIC_ENCRYPT"}, +{ERR_FUNC(RSA_F_RSA_PADDING_ADD_NONE), "RSA_padding_add_none"}, +{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP), "RSA_padding_add_PKCS1_OAEP"}, +{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_PSS), "RSA_padding_add_PKCS1_PSS"}, +{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1), "RSA_padding_add_PKCS1_type_1"}, +{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2), "RSA_padding_add_PKCS1_type_2"}, +{ERR_FUNC(RSA_F_RSA_PADDING_ADD_SSLV23), "RSA_padding_add_SSLv23"}, +{ERR_FUNC(RSA_F_RSA_PADDING_ADD_X931), "RSA_padding_add_X931"}, +{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_NONE), "RSA_padding_check_none"}, +{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP), "RSA_padding_check_PKCS1_OAEP"}, +{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1), "RSA_padding_check_PKCS1_type_1"}, +{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2), "RSA_padding_check_PKCS1_type_2"}, +{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_SSLV23), "RSA_padding_check_SSLv23"}, +{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_X931), "RSA_padding_check_X931"}, +{ERR_FUNC(RSA_F_RSA_PRINT), "RSA_print"}, +{ERR_FUNC(RSA_F_RSA_PRINT_FP), "RSA_print_fp"}, +{ERR_FUNC(RSA_F_RSA_PRIV_DECODE), "RSA_PRIV_DECODE"}, +{ERR_FUNC(RSA_F_RSA_PRIV_ENCODE), "RSA_PRIV_ENCODE"}, +{ERR_FUNC(RSA_F_RSA_PUB_DECODE), "RSA_PUB_DECODE"}, +{ERR_FUNC(RSA_F_RSA_SETUP_BLINDING), "RSA_setup_blinding"}, +{ERR_FUNC(RSA_F_RSA_SIGN), "RSA_sign"}, +{ERR_FUNC(RSA_F_RSA_SIGN_ASN1_OCTET_STRING), "RSA_sign_ASN1_OCTET_STRING"}, +{ERR_FUNC(RSA_F_RSA_VERIFY), "RSA_verify"}, +{ERR_FUNC(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING), "RSA_verify_ASN1_OCTET_STRING"}, +{ERR_FUNC(RSA_F_RSA_VERIFY_PKCS1_PSS), "RSA_verify_PKCS1_PSS"}, +{0,NULL} + }; + +static ERR_STRING_DATA RSA_str_reasons[]= + { +{ERR_REASON(RSA_R_ALGORITHM_MISMATCH) ,"algorithm mismatch"}, +{ERR_REASON(RSA_R_BAD_E_VALUE) ,"bad e value"}, +{ERR_REASON(RSA_R_BAD_FIXED_HEADER_DECRYPT),"bad fixed header decrypt"}, +{ERR_REASON(RSA_R_BAD_PAD_BYTE_COUNT) ,"bad pad byte count"}, +{ERR_REASON(RSA_R_BAD_SIGNATURE) ,"bad signature"}, +{ERR_REASON(RSA_R_BLOCK_TYPE_IS_NOT_01) ,"block type is not 01"}, +{ERR_REASON(RSA_R_BLOCK_TYPE_IS_NOT_02) ,"block type is not 02"}, +{ERR_REASON(RSA_R_DATA_GREATER_THAN_MOD_LEN),"data greater than mod len"}, +{ERR_REASON(RSA_R_DATA_TOO_LARGE) ,"data too large"}, +{ERR_REASON(RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE),"data too large for key size"}, +{ERR_REASON(RSA_R_DATA_TOO_LARGE_FOR_MODULUS),"data too large for modulus"}, +{ERR_REASON(RSA_R_DATA_TOO_SMALL) ,"data too small"}, +{ERR_REASON(RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE),"data too small for key size"}, +{ERR_REASON(RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY),"digest too big for rsa key"}, +{ERR_REASON(RSA_R_DMP1_NOT_CONGRUENT_TO_D),"dmp1 not congruent to d"}, +{ERR_REASON(RSA_R_DMQ1_NOT_CONGRUENT_TO_D),"dmq1 not congruent to d"}, +{ERR_REASON(RSA_R_D_E_NOT_CONGRUENT_TO_1),"d e not congruent to 1"}, +{ERR_REASON(RSA_R_FIRST_OCTET_INVALID) ,"first octet invalid"}, +{ERR_REASON(RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE),"illegal or unsupported padding mode"}, +{ERR_REASON(RSA_R_INVALID_DIGEST_LENGTH) ,"invalid digest length"}, +{ERR_REASON(RSA_R_INVALID_HEADER) ,"invalid header"}, +{ERR_REASON(RSA_R_INVALID_KEYBITS) ,"invalid keybits"}, +{ERR_REASON(RSA_R_INVALID_MESSAGE_LENGTH),"invalid message length"}, +{ERR_REASON(RSA_R_INVALID_PADDING) ,"invalid padding"}, +{ERR_REASON(RSA_R_INVALID_PADDING_MODE) ,"invalid padding mode"}, +{ERR_REASON(RSA_R_INVALID_PSS_SALTLEN) ,"invalid pss saltlen"}, +{ERR_REASON(RSA_R_INVALID_TRAILER) ,"invalid trailer"}, +{ERR_REASON(RSA_R_INVALID_X931_DIGEST) ,"invalid x931 digest"}, +{ERR_REASON(RSA_R_IQMP_NOT_INVERSE_OF_Q) ,"iqmp not inverse of q"}, +{ERR_REASON(RSA_R_KEY_SIZE_TOO_SMALL) ,"key size too small"}, +{ERR_REASON(RSA_R_LAST_OCTET_INVALID) ,"last octet invalid"}, +{ERR_REASON(RSA_R_MODULUS_TOO_LARGE) ,"modulus too large"}, +{ERR_REASON(RSA_R_NO_PUBLIC_EXPONENT) ,"no public exponent"}, +{ERR_REASON(RSA_R_NULL_BEFORE_BLOCK_MISSING),"null before block missing"}, +{ERR_REASON(RSA_R_N_DOES_NOT_EQUAL_P_Q) ,"n does not equal p q"}, +{ERR_REASON(RSA_R_OAEP_DECODING_ERROR) ,"oaep decoding error"}, +{ERR_REASON(RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE),"operation not supported for this keytype"}, +{ERR_REASON(RSA_R_PADDING_CHECK_FAILED) ,"padding check failed"}, +{ERR_REASON(RSA_R_P_NOT_PRIME) ,"p not prime"}, +{ERR_REASON(RSA_R_Q_NOT_PRIME) ,"q not prime"}, +{ERR_REASON(RSA_R_RSA_OPERATIONS_NOT_SUPPORTED),"rsa operations not supported"}, +{ERR_REASON(RSA_R_SLEN_CHECK_FAILED) ,"salt length check failed"}, +{ERR_REASON(RSA_R_SLEN_RECOVERY_FAILED) ,"salt length recovery failed"}, +{ERR_REASON(RSA_R_SSLV3_ROLLBACK_ATTACK) ,"sslv3 rollback attack"}, +{ERR_REASON(RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD),"the asn1 object identifier is not known for this md"}, +{ERR_REASON(RSA_R_UNKNOWN_ALGORITHM_TYPE),"unknown algorithm type"}, +{ERR_REASON(RSA_R_UNKNOWN_PADDING_TYPE) ,"unknown padding type"}, +{ERR_REASON(RSA_R_VALUE_MISSING) ,"value missing"}, +{ERR_REASON(RSA_R_WRONG_SIGNATURE_LENGTH),"wrong signature length"}, +{0,NULL} + }; + +#endif + +void ERR_load_RSA_strings(void) + { +#ifndef OPENSSL_NO_ERR + + if (ERR_func_error_string(RSA_str_functs[0].error) == NULL) + { + ERR_load_strings(0,RSA_str_functs); + ERR_load_strings(0,RSA_str_reasons); + } +#endif + } diff --git a/openssl/crypto/rsa/rsa_gen.c b/openssl/crypto/rsa/rsa_gen.c new file mode 100644 index 00000000..767f7ab6 --- /dev/null +++ b/openssl/crypto/rsa/rsa_gen.c @@ -0,0 +1,219 @@ +/* crypto/rsa/rsa_gen.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + + +/* NB: these functions have been "upgraded", the deprecated versions (which are + * compatibility wrappers using these functions) are in rsa_depr.c. + * - Geoff + */ + +#include <stdio.h> +#include <time.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> + +static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb); + +/* NB: this wrapper would normally be placed in rsa_lib.c and the static + * implementation would probably be in rsa_eay.c. Nonetheless, is kept here so + * that we don't introduce a new linker dependency. Eg. any application that + * wasn't previously linking object code related to key-generation won't have to + * now just because key-generation is part of RSA_METHOD. */ +int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb) + { + if(rsa->meth->rsa_keygen) + return rsa->meth->rsa_keygen(rsa, bits, e_value, cb); + return rsa_builtin_keygen(rsa, bits, e_value, cb); + } + +static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb) + { + BIGNUM *r0=NULL,*r1=NULL,*r2=NULL,*r3=NULL,*tmp; + BIGNUM local_r0,local_d,local_p; + BIGNUM *pr0,*d,*p; + int bitsp,bitsq,ok= -1,n=0; + BN_CTX *ctx=NULL; + + ctx=BN_CTX_new(); + if (ctx == NULL) goto err; + BN_CTX_start(ctx); + r0 = BN_CTX_get(ctx); + r1 = BN_CTX_get(ctx); + r2 = BN_CTX_get(ctx); + r3 = BN_CTX_get(ctx); + if (r3 == NULL) goto err; + + bitsp=(bits+1)/2; + bitsq=bits-bitsp; + + /* We need the RSA components non-NULL */ + if(!rsa->n && ((rsa->n=BN_new()) == NULL)) goto err; + if(!rsa->d && ((rsa->d=BN_new()) == NULL)) goto err; + if(!rsa->e && ((rsa->e=BN_new()) == NULL)) goto err; + if(!rsa->p && ((rsa->p=BN_new()) == NULL)) goto err; + if(!rsa->q && ((rsa->q=BN_new()) == NULL)) goto err; + if(!rsa->dmp1 && ((rsa->dmp1=BN_new()) == NULL)) goto err; + if(!rsa->dmq1 && ((rsa->dmq1=BN_new()) == NULL)) goto err; + if(!rsa->iqmp && ((rsa->iqmp=BN_new()) == NULL)) goto err; + + BN_copy(rsa->e, e_value); + + /* generate p and q */ + for (;;) + { + if(!BN_generate_prime_ex(rsa->p, bitsp, 0, NULL, NULL, cb)) + goto err; + if (!BN_sub(r2,rsa->p,BN_value_one())) goto err; + if (!BN_gcd(r1,r2,rsa->e,ctx)) goto err; + if (BN_is_one(r1)) break; + if(!BN_GENCB_call(cb, 2, n++)) + goto err; + } + if(!BN_GENCB_call(cb, 3, 0)) + goto err; + for (;;) + { + /* When generating ridiculously small keys, we can get stuck + * continually regenerating the same prime values. Check for + * this and bail if it happens 3 times. */ + unsigned int degenerate = 0; + do + { + if(!BN_generate_prime_ex(rsa->q, bitsq, 0, NULL, NULL, cb)) + goto err; + } while((BN_cmp(rsa->p, rsa->q) == 0) && (++degenerate < 3)); + if(degenerate == 3) + { + ok = 0; /* we set our own err */ + RSAerr(RSA_F_RSA_BUILTIN_KEYGEN,RSA_R_KEY_SIZE_TOO_SMALL); + goto err; + } + if (!BN_sub(r2,rsa->q,BN_value_one())) goto err; + if (!BN_gcd(r1,r2,rsa->e,ctx)) goto err; + if (BN_is_one(r1)) + break; + if(!BN_GENCB_call(cb, 2, n++)) + goto err; + } + if(!BN_GENCB_call(cb, 3, 1)) + goto err; + if (BN_cmp(rsa->p,rsa->q) < 0) + { + tmp=rsa->p; + rsa->p=rsa->q; + rsa->q=tmp; + } + + /* calculate n */ + if (!BN_mul(rsa->n,rsa->p,rsa->q,ctx)) goto err; + + /* calculate d */ + if (!BN_sub(r1,rsa->p,BN_value_one())) goto err; /* p-1 */ + if (!BN_sub(r2,rsa->q,BN_value_one())) goto err; /* q-1 */ + if (!BN_mul(r0,r1,r2,ctx)) goto err; /* (p-1)(q-1) */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + pr0 = &local_r0; + BN_with_flags(pr0, r0, BN_FLG_CONSTTIME); + } + else + pr0 = r0; + if (!BN_mod_inverse(rsa->d,rsa->e,pr0,ctx)) goto err; /* d */ + + /* set up d for correct BN_FLG_CONSTTIME flag */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + d = &local_d; + BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME); + } + else + d = rsa->d; + + /* calculate d mod (p-1) */ + if (!BN_mod(rsa->dmp1,d,r1,ctx)) goto err; + + /* calculate d mod (q-1) */ + if (!BN_mod(rsa->dmq1,d,r2,ctx)) goto err; + + /* calculate inverse of q mod p */ + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + p = &local_p; + BN_with_flags(p, rsa->p, BN_FLG_CONSTTIME); + } + else + p = rsa->p; + if (!BN_mod_inverse(rsa->iqmp,rsa->q,p,ctx)) goto err; + + ok=1; +err: + if (ok == -1) + { + RSAerr(RSA_F_RSA_BUILTIN_KEYGEN,ERR_LIB_BN); + ok=0; + } + if (ctx != NULL) + { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + + return ok; + } + diff --git a/openssl/crypto/rsa/rsa_lib.c b/openssl/crypto/rsa/rsa_lib.c new file mode 100644 index 00000000..de45088d --- /dev/null +++ b/openssl/crypto/rsa/rsa_lib.c @@ -0,0 +1,483 @@ +/* crypto/rsa/rsa_lib.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <openssl/crypto.h> +#include "cryptlib.h" +#include <openssl/lhash.h> +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/rand.h> +#ifndef OPENSSL_NO_ENGINE +#include <openssl/engine.h> +#endif + +const char RSA_version[]="RSA" OPENSSL_VERSION_PTEXT; + +static const RSA_METHOD *default_RSA_meth=NULL; + +RSA *RSA_new(void) + { + RSA *r=RSA_new_method(NULL); + + return r; + } + +void RSA_set_default_method(const RSA_METHOD *meth) + { + default_RSA_meth = meth; + } + +const RSA_METHOD *RSA_get_default_method(void) + { + if (default_RSA_meth == NULL) + { +#ifdef RSA_NULL + default_RSA_meth=RSA_null_method(); +#else +#if 0 /* was: #ifdef RSAref */ + default_RSA_meth=RSA_PKCS1_RSAref(); +#else + default_RSA_meth=RSA_PKCS1_SSLeay(); +#endif +#endif + } + + return default_RSA_meth; + } + +const RSA_METHOD *RSA_get_method(const RSA *rsa) + { + return rsa->meth; + } + +int RSA_set_method(RSA *rsa, const RSA_METHOD *meth) + { + /* NB: The caller is specifically setting a method, so it's not up to us + * to deal with which ENGINE it comes from. */ + const RSA_METHOD *mtmp; + mtmp = rsa->meth; + if (mtmp->finish) mtmp->finish(rsa); +#ifndef OPENSSL_NO_ENGINE + if (rsa->engine) + { + ENGINE_finish(rsa->engine); + rsa->engine = NULL; + } +#endif + rsa->meth = meth; + if (meth->init) meth->init(rsa); + return 1; + } + +RSA *RSA_new_method(ENGINE *engine) + { + RSA *ret; + + ret=(RSA *)OPENSSL_malloc(sizeof(RSA)); + if (ret == NULL) + { + RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE); + return NULL; + } + + ret->meth = RSA_get_default_method(); +#ifndef OPENSSL_NO_ENGINE + if (engine) + { + if (!ENGINE_init(engine)) + { + RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB); + OPENSSL_free(ret); + return NULL; + } + ret->engine = engine; + } + else + ret->engine = ENGINE_get_default_RSA(); + if(ret->engine) + { + ret->meth = ENGINE_get_RSA(ret->engine); + if(!ret->meth) + { + RSAerr(RSA_F_RSA_NEW_METHOD, + ERR_R_ENGINE_LIB); + ENGINE_finish(ret->engine); + OPENSSL_free(ret); + return NULL; + } + } +#endif + + ret->pad=0; + ret->version=0; + ret->n=NULL; + ret->e=NULL; + ret->d=NULL; + ret->p=NULL; + ret->q=NULL; + ret->dmp1=NULL; + ret->dmq1=NULL; + ret->iqmp=NULL; + ret->references=1; + ret->_method_mod_n=NULL; + ret->_method_mod_p=NULL; + ret->_method_mod_q=NULL; + ret->blinding=NULL; + ret->mt_blinding=NULL; + ret->bignum_data=NULL; + ret->flags=ret->meth->flags; + if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) + { +#ifndef OPENSSL_NO_ENGINE + if (ret->engine) + ENGINE_finish(ret->engine); +#endif + OPENSSL_free(ret); + return(NULL); + } + + if ((ret->meth->init != NULL) && !ret->meth->init(ret)) + { +#ifndef OPENSSL_NO_ENGINE + if (ret->engine) + ENGINE_finish(ret->engine); +#endif + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data); + OPENSSL_free(ret); + ret=NULL; + } + return(ret); + } + +void RSA_free(RSA *r) + { + int i; + + if (r == NULL) return; + + i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA); +#ifdef REF_PRINT + REF_PRINT("RSA",r); +#endif + if (i > 0) return; +#ifdef REF_CHECK + if (i < 0) + { + fprintf(stderr,"RSA_free, bad reference count\n"); + abort(); + } +#endif + + if (r->meth->finish) + r->meth->finish(r); +#ifndef OPENSSL_NO_ENGINE + if (r->engine) + ENGINE_finish(r->engine); +#endif + + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data); + + if (r->n != NULL) BN_clear_free(r->n); + if (r->e != NULL) BN_clear_free(r->e); + if (r->d != NULL) BN_clear_free(r->d); + if (r->p != NULL) BN_clear_free(r->p); + if (r->q != NULL) BN_clear_free(r->q); + if (r->dmp1 != NULL) BN_clear_free(r->dmp1); + if (r->dmq1 != NULL) BN_clear_free(r->dmq1); + if (r->iqmp != NULL) BN_clear_free(r->iqmp); + if (r->blinding != NULL) BN_BLINDING_free(r->blinding); + if (r->mt_blinding != NULL) BN_BLINDING_free(r->mt_blinding); + if (r->bignum_data != NULL) OPENSSL_free_locked(r->bignum_data); + OPENSSL_free(r); + } + +int RSA_up_ref(RSA *r) + { + int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA); +#ifdef REF_PRINT + REF_PRINT("RSA",r); +#endif +#ifdef REF_CHECK + if (i < 2) + { + fprintf(stderr, "RSA_up_ref, bad reference count\n"); + abort(); + } +#endif + return ((i > 1) ? 1 : 0); + } + +int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) + { + return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp, + new_func, dup_func, free_func); + } + +int RSA_set_ex_data(RSA *r, int idx, void *arg) + { + return(CRYPTO_set_ex_data(&r->ex_data,idx,arg)); + } + +void *RSA_get_ex_data(const RSA *r, int idx) + { + return(CRYPTO_get_ex_data(&r->ex_data,idx)); + } + +int RSA_size(const RSA *r) + { + return(BN_num_bytes(r->n)); + } + +int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to, + RSA *rsa, int padding) + { + return(rsa->meth->rsa_pub_enc(flen, from, to, rsa, padding)); + } + +int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to, + RSA *rsa, int padding) + { + return(rsa->meth->rsa_priv_enc(flen, from, to, rsa, padding)); + } + +int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to, + RSA *rsa, int padding) + { + return(rsa->meth->rsa_priv_dec(flen, from, to, rsa, padding)); + } + +int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to, + RSA *rsa, int padding) + { + return(rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding)); + } + +int RSA_flags(const RSA *r) + { + return((r == NULL)?0:r->meth->flags); + } + +void RSA_blinding_off(RSA *rsa) + { + if (rsa->blinding != NULL) + { + BN_BLINDING_free(rsa->blinding); + rsa->blinding=NULL; + } + rsa->flags &= ~RSA_FLAG_BLINDING; + rsa->flags |= RSA_FLAG_NO_BLINDING; + } + +int RSA_blinding_on(RSA *rsa, BN_CTX *ctx) + { + int ret=0; + + if (rsa->blinding != NULL) + RSA_blinding_off(rsa); + + rsa->blinding = RSA_setup_blinding(rsa, ctx); + if (rsa->blinding == NULL) + goto err; + + rsa->flags |= RSA_FLAG_BLINDING; + rsa->flags &= ~RSA_FLAG_NO_BLINDING; + ret=1; +err: + return(ret); + } + +static BIGNUM *rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p, + const BIGNUM *q, BN_CTX *ctx) +{ + BIGNUM *ret = NULL, *r0, *r1, *r2; + + if (d == NULL || p == NULL || q == NULL) + return NULL; + + BN_CTX_start(ctx); + r0 = BN_CTX_get(ctx); + r1 = BN_CTX_get(ctx); + r2 = BN_CTX_get(ctx); + if (r2 == NULL) + goto err; + + if (!BN_sub(r1, p, BN_value_one())) goto err; + if (!BN_sub(r2, q, BN_value_one())) goto err; + if (!BN_mul(r0, r1, r2, ctx)) goto err; + + ret = BN_mod_inverse(NULL, d, r0, ctx); +err: + BN_CTX_end(ctx); + return ret; +} + +BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx) +{ + BIGNUM local_n; + BIGNUM *e,*n; + BN_CTX *ctx; + BN_BLINDING *ret = NULL; + + if (in_ctx == NULL) + { + if ((ctx = BN_CTX_new()) == NULL) return 0; + } + else + ctx = in_ctx; + + BN_CTX_start(ctx); + e = BN_CTX_get(ctx); + if (e == NULL) + { + RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (rsa->e == NULL) + { + e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx); + if (e == NULL) + { + RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT); + goto err; + } + } + else + e = rsa->e; + + + if ((RAND_status() == 0) && rsa->d != NULL && rsa->d->d != NULL) + { + /* if PRNG is not properly seeded, resort to secret + * exponent as unpredictable seed */ + RAND_add(rsa->d->d, rsa->d->dmax * sizeof rsa->d->d[0], 0.0); + } + + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) + { + /* Set BN_FLG_CONSTTIME flag */ + n = &local_n; + BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME); + } + else + n = rsa->n; + + ret = BN_BLINDING_create_param(NULL, e, n, ctx, + rsa->meth->bn_mod_exp, rsa->_method_mod_n); + if (ret == NULL) + { + RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB); + goto err; + } + CRYPTO_THREADID_current(BN_BLINDING_thread_id(ret)); +err: + BN_CTX_end(ctx); + if (in_ctx == NULL) + BN_CTX_free(ctx); + if(rsa->e == NULL) + BN_free(e); + + return ret; +} + +int RSA_memory_lock(RSA *r) + { + int i,j,k,off; + char *p; + BIGNUM *bn,**t[6],*b; + BN_ULONG *ul; + + if (r->d == NULL) return(1); + t[0]= &r->d; + t[1]= &r->p; + t[2]= &r->q; + t[3]= &r->dmp1; + t[4]= &r->dmq1; + t[5]= &r->iqmp; + k=sizeof(BIGNUM)*6; + off=k/sizeof(BN_ULONG)+1; + j=1; + for (i=0; i<6; i++) + j+= (*t[i])->top; + if ((p=OPENSSL_malloc_locked((off+j)*sizeof(BN_ULONG))) == NULL) + { + RSAerr(RSA_F_RSA_MEMORY_LOCK,ERR_R_MALLOC_FAILURE); + return(0); + } + bn=(BIGNUM *)p; + ul=(BN_ULONG *)&(p[off]); + for (i=0; i<6; i++) + { + b= *(t[i]); + *(t[i])= &(bn[i]); + memcpy((char *)&(bn[i]),(char *)b,sizeof(BIGNUM)); + bn[i].flags=BN_FLG_STATIC_DATA; + bn[i].d=ul; + memcpy((char *)ul,b->d,sizeof(BN_ULONG)*b->top); + ul+=b->top; + BN_clear_free(b); + } + + /* I should fix this so it can still be done */ + r->flags&= ~(RSA_FLAG_CACHE_PRIVATE|RSA_FLAG_CACHE_PUBLIC); + + r->bignum_data=p; + return(1); + } diff --git a/openssl/crypto/rsa/rsa_locl.h b/openssl/crypto/rsa/rsa_locl.h new file mode 100644 index 00000000..f5d2d566 --- /dev/null +++ b/openssl/crypto/rsa/rsa_locl.h @@ -0,0 +1,4 @@ +extern int int_rsa_verify(int dtype, const unsigned char *m, unsigned int m_len, + unsigned char *rm, size_t *prm_len, + const unsigned char *sigbuf, size_t siglen, + RSA *rsa); diff --git a/openssl/crypto/rsa/rsa_none.c b/openssl/crypto/rsa/rsa_none.c new file mode 100644 index 00000000..e6f3e627 --- /dev/null +++ b/openssl/crypto/rsa/rsa_none.c @@ -0,0 +1,98 @@ +/* crypto/rsa/rsa_none.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/rand.h> + +int RSA_padding_add_none(unsigned char *to, int tlen, + const unsigned char *from, int flen) + { + if (flen > tlen) + { + RSAerr(RSA_F_RSA_PADDING_ADD_NONE,RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); + return(0); + } + + if (flen < tlen) + { + RSAerr(RSA_F_RSA_PADDING_ADD_NONE,RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE); + return(0); + } + + memcpy(to,from,(unsigned int)flen); + return(1); + } + +int RSA_padding_check_none(unsigned char *to, int tlen, + const unsigned char *from, int flen, int num) + { + + if (flen > tlen) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_NONE,RSA_R_DATA_TOO_LARGE); + return(-1); + } + + memset(to,0,tlen-flen); + memcpy(to+tlen-flen,from,flen); + return(tlen); + } + diff --git a/openssl/crypto/rsa/rsa_null.c b/openssl/crypto/rsa/rsa_null.c new file mode 100644 index 00000000..2f2202f1 --- /dev/null +++ b/openssl/crypto/rsa/rsa_null.c @@ -0,0 +1,151 @@ +/* rsa_null.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 1999. + */ +/* ==================================================================== + * Copyright (c) 1999 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/rand.h> + +/* This is a dummy RSA implementation that just returns errors when called. + * It is designed to allow some RSA functions to work while stopping those + * covered by the RSA patent. That is RSA, encryption, decryption, signing + * and verify is not allowed but RSA key generation, key checking and other + * operations (like storing RSA keys) are permitted. + */ + +static int RSA_null_public_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +static int RSA_null_private_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +static int RSA_null_public_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +static int RSA_null_private_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa,int padding); +#if 0 /* not currently used */ +static int RSA_null_mod_exp(const BIGNUM *r0, const BIGNUM *i, RSA *rsa); +#endif +static int RSA_null_init(RSA *rsa); +static int RSA_null_finish(RSA *rsa); +static RSA_METHOD rsa_null_meth={ + "Null RSA", + RSA_null_public_encrypt, + RSA_null_public_decrypt, + RSA_null_private_encrypt, + RSA_null_private_decrypt, + NULL, + NULL, + RSA_null_init, + RSA_null_finish, + 0, + NULL, + NULL, + NULL, + NULL + }; + +const RSA_METHOD *RSA_null_method(void) + { + return(&rsa_null_meth); + } + +static int RSA_null_public_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + RSAerr(RSA_F_RSA_NULL_PUBLIC_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); + return -1; + } + +static int RSA_null_private_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + RSAerr(RSA_F_RSA_NULL_PRIVATE_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); + return -1; + } + +static int RSA_null_private_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + RSAerr(RSA_F_RSA_NULL_PRIVATE_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); + return -1; + } + +static int RSA_null_public_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + RSAerr(RSA_F_RSA_NULL_PUBLIC_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); + return -1; + } + +#if 0 /* not currently used */ +static int RSA_null_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa) + { + ...err(RSA_F_RSA_NULL_MOD_EXP, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); + return -1; + } +#endif + +static int RSA_null_init(RSA *rsa) + { + return(1); + } + +static int RSA_null_finish(RSA *rsa) + { + return(1); + } diff --git a/openssl/crypto/rsa/rsa_oaep.c b/openssl/crypto/rsa/rsa_oaep.c new file mode 100644 index 00000000..18d307ea --- /dev/null +++ b/openssl/crypto/rsa/rsa_oaep.c @@ -0,0 +1,233 @@ +/* crypto/rsa/rsa_oaep.c */ +/* Written by Ulf Moeller. This software is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. */ + +/* EME-OAEP as defined in RFC 2437 (PKCS #1 v2.0) */ + +/* See Victor Shoup, "OAEP reconsidered," Nov. 2000, + * <URL: http://www.shoup.net/papers/oaep.ps.Z> + * for problems with the security proof for the + * original OAEP scheme, which EME-OAEP is based on. + * + * A new proof can be found in E. Fujisaki, T. Okamoto, + * D. Pointcheval, J. Stern, "RSA-OEAP is Still Alive!", + * Dec. 2000, <URL: http://eprint.iacr.org/2000/061/>. + * The new proof has stronger requirements for the + * underlying permutation: "partial-one-wayness" instead + * of one-wayness. For the RSA function, this is + * an equivalent notion. + */ + + +#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1) +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/evp.h> +#include <openssl/rand.h> +#include <openssl/sha.h> + +static int MGF1(unsigned char *mask, long len, + const unsigned char *seed, long seedlen); + +int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen, + const unsigned char *from, int flen, + const unsigned char *param, int plen) + { + int i, emlen = tlen - 1; + unsigned char *db, *seed; + unsigned char *dbmask, seedmask[SHA_DIGEST_LENGTH]; + + if (flen > emlen - 2 * SHA_DIGEST_LENGTH - 1) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP, + RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); + return 0; + } + + if (emlen < 2 * SHA_DIGEST_LENGTH + 1) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP, RSA_R_KEY_SIZE_TOO_SMALL); + return 0; + } + + to[0] = 0; + seed = to + 1; + db = to + SHA_DIGEST_LENGTH + 1; + + EVP_Digest((void *)param, plen, db, NULL, EVP_sha1(), NULL); + memset(db + SHA_DIGEST_LENGTH, 0, + emlen - flen - 2 * SHA_DIGEST_LENGTH - 1); + db[emlen - flen - SHA_DIGEST_LENGTH - 1] = 0x01; + memcpy(db + emlen - flen - SHA_DIGEST_LENGTH, from, (unsigned int) flen); + if (RAND_bytes(seed, SHA_DIGEST_LENGTH) <= 0) + return 0; +#ifdef PKCS_TESTVECT + memcpy(seed, + "\xaa\xfd\x12\xf6\x59\xca\xe6\x34\x89\xb4\x79\xe5\x07\x6d\xde\xc2\xf0\x6c\xb5\x8f", + 20); +#endif + + dbmask = OPENSSL_malloc(emlen - SHA_DIGEST_LENGTH); + if (dbmask == NULL) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP, ERR_R_MALLOC_FAILURE); + return 0; + } + + if (MGF1(dbmask, emlen - SHA_DIGEST_LENGTH, seed, SHA_DIGEST_LENGTH) < 0) + return 0; + for (i = 0; i < emlen - SHA_DIGEST_LENGTH; i++) + db[i] ^= dbmask[i]; + + if (MGF1(seedmask, SHA_DIGEST_LENGTH, db, emlen - SHA_DIGEST_LENGTH) < 0) + return 0; + for (i = 0; i < SHA_DIGEST_LENGTH; i++) + seed[i] ^= seedmask[i]; + + OPENSSL_free(dbmask); + return 1; + } + +int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen, + const unsigned char *from, int flen, int num, + const unsigned char *param, int plen) + { + int i, dblen, mlen = -1; + const unsigned char *maskeddb; + int lzero; + unsigned char *db = NULL, seed[SHA_DIGEST_LENGTH], phash[SHA_DIGEST_LENGTH]; + unsigned char *padded_from; + int bad = 0; + + if (--num < 2 * SHA_DIGEST_LENGTH + 1) + /* 'num' is the length of the modulus, i.e. does not depend on the + * particular ciphertext. */ + goto decoding_err; + + lzero = num - flen; + if (lzero < 0) + { + /* signalling this error immediately after detection might allow + * for side-channel attacks (e.g. timing if 'plen' is huge + * -- cf. James H. Manger, "A Chosen Ciphertext Attack on RSA Optimal + * Asymmetric Encryption Padding (OAEP) [...]", CRYPTO 2001), + * so we use a 'bad' flag */ + bad = 1; + lzero = 0; + flen = num; /* don't overflow the memcpy to padded_from */ + } + + dblen = num - SHA_DIGEST_LENGTH; + db = OPENSSL_malloc(dblen + num); + if (db == NULL) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP, ERR_R_MALLOC_FAILURE); + return -1; + } + + /* Always do this zero-padding copy (even when lzero == 0) + * to avoid leaking timing info about the value of lzero. */ + padded_from = db + dblen; + memset(padded_from, 0, lzero); + memcpy(padded_from + lzero, from, flen); + + maskeddb = padded_from + SHA_DIGEST_LENGTH; + + if (MGF1(seed, SHA_DIGEST_LENGTH, maskeddb, dblen)) + return -1; + for (i = 0; i < SHA_DIGEST_LENGTH; i++) + seed[i] ^= padded_from[i]; + + if (MGF1(db, dblen, seed, SHA_DIGEST_LENGTH)) + return -1; + for (i = 0; i < dblen; i++) + db[i] ^= maskeddb[i]; + + EVP_Digest((void *)param, plen, phash, NULL, EVP_sha1(), NULL); + + if (memcmp(db, phash, SHA_DIGEST_LENGTH) != 0 || bad) + goto decoding_err; + else + { + for (i = SHA_DIGEST_LENGTH; i < dblen; i++) + if (db[i] != 0x00) + break; + if (i == dblen || db[i] != 0x01) + goto decoding_err; + else + { + /* everything looks OK */ + + mlen = dblen - ++i; + if (tlen < mlen) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP, RSA_R_DATA_TOO_LARGE); + mlen = -1; + } + else + memcpy(to, db + i, mlen); + } + } + OPENSSL_free(db); + return mlen; + +decoding_err: + /* to avoid chosen ciphertext attacks, the error message should not reveal + * which kind of decoding error happened */ + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP, RSA_R_OAEP_DECODING_ERROR); + if (db != NULL) OPENSSL_free(db); + return -1; + } + +int PKCS1_MGF1(unsigned char *mask, long len, + const unsigned char *seed, long seedlen, const EVP_MD *dgst) + { + long i, outlen = 0; + unsigned char cnt[4]; + EVP_MD_CTX c; + unsigned char md[EVP_MAX_MD_SIZE]; + int mdlen; + int rv = -1; + + EVP_MD_CTX_init(&c); + mdlen = EVP_MD_size(dgst); + if (mdlen < 0) + goto err; + for (i = 0; outlen < len; i++) + { + cnt[0] = (unsigned char)((i >> 24) & 255); + cnt[1] = (unsigned char)((i >> 16) & 255); + cnt[2] = (unsigned char)((i >> 8)) & 255; + cnt[3] = (unsigned char)(i & 255); + if (!EVP_DigestInit_ex(&c,dgst, NULL) + || !EVP_DigestUpdate(&c, seed, seedlen) + || !EVP_DigestUpdate(&c, cnt, 4)) + goto err; + if (outlen + mdlen <= len) + { + if (!EVP_DigestFinal_ex(&c, mask + outlen, NULL)) + goto err; + outlen += mdlen; + } + else + { + if (!EVP_DigestFinal_ex(&c, md, NULL)) + goto err; + memcpy(mask + outlen, md, len - outlen); + outlen = len; + } + } + rv = 0; + err: + EVP_MD_CTX_cleanup(&c); + return rv; + } + +static int MGF1(unsigned char *mask, long len, const unsigned char *seed, + long seedlen) + { + return PKCS1_MGF1(mask, len, seed, seedlen, EVP_sha1()); + } +#endif diff --git a/openssl/crypto/rsa/rsa_pk1.c b/openssl/crypto/rsa/rsa_pk1.c new file mode 100644 index 00000000..8560755f --- /dev/null +++ b/openssl/crypto/rsa/rsa_pk1.c @@ -0,0 +1,224 @@ +/* crypto/rsa/rsa_pk1.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/rand.h> + +int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen, + const unsigned char *from, int flen) + { + int j; + unsigned char *p; + + if (flen > (tlen-RSA_PKCS1_PADDING_SIZE)) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1,RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); + return(0); + } + + p=(unsigned char *)to; + + *(p++)=0; + *(p++)=1; /* Private Key BT (Block Type) */ + + /* pad out with 0xff data */ + j=tlen-3-flen; + memset(p,0xff,j); + p+=j; + *(p++)='\0'; + memcpy(p,from,(unsigned int)flen); + return(1); + } + +int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen, + const unsigned char *from, int flen, int num) + { + int i,j; + const unsigned char *p; + + p=from; + if ((num != (flen+1)) || (*(p++) != 01)) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,RSA_R_BLOCK_TYPE_IS_NOT_01); + return(-1); + } + + /* scan over padding data */ + j=flen-1; /* one for type. */ + for (i=0; i<j; i++) + { + if (*p != 0xff) /* should decrypt to 0xff */ + { + if (*p == 0) + { p++; break; } + else { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,RSA_R_BAD_FIXED_HEADER_DECRYPT); + return(-1); + } + } + p++; + } + + if (i == j) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,RSA_R_NULL_BEFORE_BLOCK_MISSING); + return(-1); + } + + if (i < 8) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,RSA_R_BAD_PAD_BYTE_COUNT); + return(-1); + } + i++; /* Skip over the '\0' */ + j-=i; + if (j > tlen) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,RSA_R_DATA_TOO_LARGE); + return(-1); + } + memcpy(to,p,(unsigned int)j); + + return(j); + } + +int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen, + const unsigned char *from, int flen) + { + int i,j; + unsigned char *p; + + if (flen > (tlen-11)) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2,RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); + return(0); + } + + p=(unsigned char *)to; + + *(p++)=0; + *(p++)=2; /* Public Key BT (Block Type) */ + + /* pad out with non-zero random data */ + j=tlen-3-flen; + + if (RAND_bytes(p,j) <= 0) + return(0); + for (i=0; i<j; i++) + { + if (*p == '\0') + do { + if (RAND_bytes(p,1) <= 0) + return(0); + } while (*p == '\0'); + p++; + } + + *(p++)='\0'; + + memcpy(p,from,(unsigned int)flen); + return(1); + } + +int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen, + const unsigned char *from, int flen, int num) + { + int i,j; + const unsigned char *p; + + p=from; + if ((num != (flen+1)) || (*(p++) != 02)) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2,RSA_R_BLOCK_TYPE_IS_NOT_02); + return(-1); + } +#ifdef PKCS1_CHECK + return(num-11); +#endif + + /* scan over padding data */ + j=flen-1; /* one for type. */ + for (i=0; i<j; i++) + if (*(p++) == 0) break; + + if (i == j) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2,RSA_R_NULL_BEFORE_BLOCK_MISSING); + return(-1); + } + + if (i < 8) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2,RSA_R_BAD_PAD_BYTE_COUNT); + return(-1); + } + i++; /* Skip over the '\0' */ + j-=i; + if (j > tlen) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2,RSA_R_DATA_TOO_LARGE); + return(-1); + } + memcpy(to,p,(unsigned int)j); + + return(j); + } + diff --git a/openssl/crypto/rsa/rsa_pmeth.c b/openssl/crypto/rsa/rsa_pmeth.c new file mode 100644 index 00000000..c6892ecd --- /dev/null +++ b/openssl/crypto/rsa/rsa_pmeth.c @@ -0,0 +1,587 @@ +/* crypto/rsa/rsa_pmeth.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2006. + */ +/* ==================================================================== + * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/asn1t.h> +#include <openssl/x509.h> +#include <openssl/rsa.h> +#include <openssl/bn.h> +#include <openssl/evp.h> +#include "evp_locl.h" +#include "rsa_locl.h" + +/* RSA pkey context structure */ + +typedef struct + { + /* Key gen parameters */ + int nbits; + BIGNUM *pub_exp; + /* Keygen callback info */ + int gentmp[2]; + /* RSA padding mode */ + int pad_mode; + /* message digest */ + const EVP_MD *md; + /* PSS/OAEP salt length */ + int saltlen; + /* Temp buffer */ + unsigned char *tbuf; + } RSA_PKEY_CTX; + +static int pkey_rsa_init(EVP_PKEY_CTX *ctx) + { + RSA_PKEY_CTX *rctx; + rctx = OPENSSL_malloc(sizeof(RSA_PKEY_CTX)); + if (!rctx) + return 0; + rctx->nbits = 1024; + rctx->pub_exp = NULL; + rctx->pad_mode = RSA_PKCS1_PADDING; + rctx->md = NULL; + rctx->tbuf = NULL; + + rctx->saltlen = -2; + + ctx->data = rctx; + ctx->keygen_info = rctx->gentmp; + ctx->keygen_info_count = 2; + + return 1; + } + +static int pkey_rsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) + { + RSA_PKEY_CTX *dctx, *sctx; + if (!pkey_rsa_init(dst)) + return 0; + sctx = src->data; + dctx = dst->data; + dctx->nbits = sctx->nbits; + if (sctx->pub_exp) + { + dctx->pub_exp = BN_dup(sctx->pub_exp); + if (!dctx->pub_exp) + return 0; + } + dctx->pad_mode = sctx->pad_mode; + dctx->md = sctx->md; + return 1; + } + +static int setup_tbuf(RSA_PKEY_CTX *ctx, EVP_PKEY_CTX *pk) + { + if (ctx->tbuf) + return 1; + ctx->tbuf = OPENSSL_malloc(EVP_PKEY_size(pk->pkey)); + if (!ctx->tbuf) + return 0; + return 1; + } + +static void pkey_rsa_cleanup(EVP_PKEY_CTX *ctx) + { + RSA_PKEY_CTX *rctx = ctx->data; + if (rctx) + { + if (rctx->pub_exp) + BN_free(rctx->pub_exp); + if (rctx->tbuf) + OPENSSL_free(rctx->tbuf); + OPENSSL_free(rctx); + } + } + +static int pkey_rsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, + const unsigned char *tbs, size_t tbslen) + { + int ret; + RSA_PKEY_CTX *rctx = ctx->data; + RSA *rsa = ctx->pkey->pkey.rsa; + + if (rctx->md) + { + if (tbslen != (size_t)EVP_MD_size(rctx->md)) + { + RSAerr(RSA_F_PKEY_RSA_SIGN, + RSA_R_INVALID_DIGEST_LENGTH); + return -1; + } + if (rctx->pad_mode == RSA_X931_PADDING) + { + if (!setup_tbuf(rctx, ctx)) + return -1; + memcpy(rctx->tbuf, tbs, tbslen); + rctx->tbuf[tbslen] = + RSA_X931_hash_id(EVP_MD_type(rctx->md)); + ret = RSA_private_encrypt(tbslen + 1, rctx->tbuf, + sig, rsa, RSA_X931_PADDING); + } + else if (rctx->pad_mode == RSA_PKCS1_PADDING) + { + unsigned int sltmp; + ret = RSA_sign(EVP_MD_type(rctx->md), + tbs, tbslen, sig, &sltmp, rsa); + if (ret <= 0) + return ret; + ret = sltmp; + } + else if (rctx->pad_mode == RSA_PKCS1_PSS_PADDING) + { + if (!setup_tbuf(rctx, ctx)) + return -1; + if (!RSA_padding_add_PKCS1_PSS(rsa, rctx->tbuf, tbs, + rctx->md, rctx->saltlen)) + return -1; + ret = RSA_private_encrypt(RSA_size(rsa), rctx->tbuf, + sig, rsa, RSA_NO_PADDING); + } + else + return -1; + } + else + ret = RSA_private_encrypt(tbslen, tbs, sig, ctx->pkey->pkey.rsa, + rctx->pad_mode); + if (ret < 0) + return ret; + *siglen = ret; + return 1; + } + + +static int pkey_rsa_verifyrecover(EVP_PKEY_CTX *ctx, + unsigned char *rout, size_t *routlen, + const unsigned char *sig, size_t siglen) + { + int ret; + RSA_PKEY_CTX *rctx = ctx->data; + + if (rctx->md) + { + if (rctx->pad_mode == RSA_X931_PADDING) + { + if (!setup_tbuf(rctx, ctx)) + return -1; + ret = RSA_public_decrypt(siglen, sig, + rctx->tbuf, ctx->pkey->pkey.rsa, + RSA_X931_PADDING); + if (ret < 1) + return 0; + ret--; + if (rctx->tbuf[ret] != + RSA_X931_hash_id(EVP_MD_type(rctx->md))) + { + RSAerr(RSA_F_PKEY_RSA_VERIFYRECOVER, + RSA_R_ALGORITHM_MISMATCH); + return 0; + } + if (ret != EVP_MD_size(rctx->md)) + { + RSAerr(RSA_F_PKEY_RSA_VERIFYRECOVER, + RSA_R_INVALID_DIGEST_LENGTH); + return 0; + } + if (rout) + memcpy(rout, rctx->tbuf, ret); + } + else if (rctx->pad_mode == RSA_PKCS1_PADDING) + { + size_t sltmp; + ret = int_rsa_verify(EVP_MD_type(rctx->md), + NULL, 0, rout, &sltmp, + sig, siglen, ctx->pkey->pkey.rsa); + if (ret <= 0) + return 0; + ret = sltmp; + } + else + return -1; + } + else + ret = RSA_public_decrypt(siglen, sig, rout, ctx->pkey->pkey.rsa, + rctx->pad_mode); + if (ret < 0) + return ret; + *routlen = ret; + return 1; + } + +static int pkey_rsa_verify(EVP_PKEY_CTX *ctx, + const unsigned char *sig, size_t siglen, + const unsigned char *tbs, size_t tbslen) + { + RSA_PKEY_CTX *rctx = ctx->data; + RSA *rsa = ctx->pkey->pkey.rsa; + size_t rslen; + if (rctx->md) + { + if (rctx->pad_mode == RSA_PKCS1_PADDING) + return RSA_verify(EVP_MD_type(rctx->md), tbs, tbslen, + sig, siglen, rsa); + if (rctx->pad_mode == RSA_X931_PADDING) + { + if (pkey_rsa_verifyrecover(ctx, NULL, &rslen, + sig, siglen) <= 0) + return 0; + } + else if (rctx->pad_mode == RSA_PKCS1_PSS_PADDING) + { + int ret; + if (!setup_tbuf(rctx, ctx)) + return -1; + ret = RSA_public_decrypt(siglen, sig, rctx->tbuf, + rsa, RSA_NO_PADDING); + if (ret <= 0) + return 0; + ret = RSA_verify_PKCS1_PSS(rsa, tbs, rctx->md, + rctx->tbuf, rctx->saltlen); + if (ret <= 0) + return 0; + return 1; + } + else + return -1; + } + else + { + if (!setup_tbuf(rctx, ctx)) + return -1; + rslen = RSA_public_decrypt(siglen, sig, rctx->tbuf, + rsa, rctx->pad_mode); + if (rslen == 0) + return 0; + } + + if ((rslen != tbslen) || memcmp(tbs, rctx->tbuf, rslen)) + return 0; + + return 1; + + } + + +static int pkey_rsa_encrypt(EVP_PKEY_CTX *ctx, + unsigned char *out, size_t *outlen, + const unsigned char *in, size_t inlen) + { + int ret; + RSA_PKEY_CTX *rctx = ctx->data; + ret = RSA_public_encrypt(inlen, in, out, ctx->pkey->pkey.rsa, + rctx->pad_mode); + if (ret < 0) + return ret; + *outlen = ret; + return 1; + } + +static int pkey_rsa_decrypt(EVP_PKEY_CTX *ctx, + unsigned char *out, size_t *outlen, + const unsigned char *in, size_t inlen) + { + int ret; + RSA_PKEY_CTX *rctx = ctx->data; + ret = RSA_private_decrypt(inlen, in, out, ctx->pkey->pkey.rsa, + rctx->pad_mode); + if (ret < 0) + return ret; + *outlen = ret; + return 1; + } + +static int check_padding_md(const EVP_MD *md, int padding) + { + if (!md) + return 1; + + if (padding == RSA_NO_PADDING) + { + RSAerr(RSA_F_CHECK_PADDING_MD, RSA_R_INVALID_PADDING_MODE); + return 0; + } + + if (padding == RSA_X931_PADDING) + { + if (RSA_X931_hash_id(EVP_MD_type(md)) == -1) + { + RSAerr(RSA_F_CHECK_PADDING_MD, + RSA_R_INVALID_X931_DIGEST); + return 0; + } + return 1; + } + + return 1; + } + + +static int pkey_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) + { + RSA_PKEY_CTX *rctx = ctx->data; + switch (type) + { + case EVP_PKEY_CTRL_RSA_PADDING: + if ((p1 >= RSA_PKCS1_PADDING) && (p1 <= RSA_PKCS1_PSS_PADDING)) + { + if (!check_padding_md(rctx->md, p1)) + return 0; + if (p1 == RSA_PKCS1_PSS_PADDING) + { + if (!(ctx->operation & + (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY))) + goto bad_pad; + if (!rctx->md) + rctx->md = EVP_sha1(); + } + if (p1 == RSA_PKCS1_OAEP_PADDING) + { + if (!(ctx->operation & EVP_PKEY_OP_TYPE_CRYPT)) + goto bad_pad; + if (!rctx->md) + rctx->md = EVP_sha1(); + } + rctx->pad_mode = p1; + return 1; + } + bad_pad: + RSAerr(RSA_F_PKEY_RSA_CTRL, + RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE); + return -2; + + case EVP_PKEY_CTRL_RSA_PSS_SALTLEN: + if (p1 < -2) + return -2; + if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING) + { + RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_PSS_SALTLEN); + return -2; + } + rctx->saltlen = p1; + return 1; + + case EVP_PKEY_CTRL_RSA_KEYGEN_BITS: + if (p1 < 256) + { + RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_KEYBITS); + return -2; + } + rctx->nbits = p1; + return 1; + + case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP: + if (!p2) + return -2; + rctx->pub_exp = p2; + return 1; + + case EVP_PKEY_CTRL_MD: + if (!check_padding_md(p2, rctx->pad_mode)) + return 0; + rctx->md = p2; + return 1; + + case EVP_PKEY_CTRL_DIGESTINIT: + case EVP_PKEY_CTRL_PKCS7_ENCRYPT: + case EVP_PKEY_CTRL_PKCS7_DECRYPT: + case EVP_PKEY_CTRL_PKCS7_SIGN: +#ifndef OPENSSL_NO_CMS + case EVP_PKEY_CTRL_CMS_ENCRYPT: + case EVP_PKEY_CTRL_CMS_DECRYPT: + case EVP_PKEY_CTRL_CMS_SIGN: +#endif + return 1; + case EVP_PKEY_CTRL_PEER_KEY: + RSAerr(RSA_F_PKEY_RSA_CTRL, + RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); + return -2; + + default: + return -2; + + } + } + +static int pkey_rsa_ctrl_str(EVP_PKEY_CTX *ctx, + const char *type, const char *value) + { + if (!value) + { + RSAerr(RSA_F_PKEY_RSA_CTRL_STR, RSA_R_VALUE_MISSING); + return 0; + } + if (!strcmp(type, "rsa_padding_mode")) + { + int pm; + if (!strcmp(value, "pkcs1")) + pm = RSA_PKCS1_PADDING; + else if (!strcmp(value, "sslv23")) + pm = RSA_SSLV23_PADDING; + else if (!strcmp(value, "none")) + pm = RSA_NO_PADDING; + else if (!strcmp(value, "oeap")) + pm = RSA_PKCS1_OAEP_PADDING; + else if (!strcmp(value, "x931")) + pm = RSA_X931_PADDING; + else if (!strcmp(value, "pss")) + pm = RSA_PKCS1_PSS_PADDING; + else + { + RSAerr(RSA_F_PKEY_RSA_CTRL_STR, + RSA_R_UNKNOWN_PADDING_TYPE); + return -2; + } + return EVP_PKEY_CTX_set_rsa_padding(ctx, pm); + } + + if (!strcmp(type, "rsa_pss_saltlen")) + { + int saltlen; + saltlen = atoi(value); + return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, saltlen); + } + + if (!strcmp(type, "rsa_keygen_bits")) + { + int nbits; + nbits = atoi(value); + return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, nbits); + } + + if (!strcmp(type, "rsa_keygen_pubexp")) + { + int ret; + BIGNUM *pubexp = NULL; + if (!BN_asc2bn(&pubexp, value)) + return 0; + ret = EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp); + if (ret <= 0) + BN_free(pubexp); + return ret; + } + + return -2; + } + +static int pkey_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) + { + RSA *rsa = NULL; + RSA_PKEY_CTX *rctx = ctx->data; + BN_GENCB *pcb, cb; + int ret; + if (!rctx->pub_exp) + { + rctx->pub_exp = BN_new(); + if (!rctx->pub_exp || !BN_set_word(rctx->pub_exp, RSA_F4)) + return 0; + } + rsa = RSA_new(); + if (!rsa) + return 0; + if (ctx->pkey_gencb) + { + pcb = &cb; + evp_pkey_set_cb_translate(pcb, ctx); + } + else + pcb = NULL; + ret = RSA_generate_key_ex(rsa, rctx->nbits, rctx->pub_exp, pcb); + if (ret > 0) + EVP_PKEY_assign_RSA(pkey, rsa); + else + RSA_free(rsa); + return ret; + } + +const EVP_PKEY_METHOD rsa_pkey_meth = + { + EVP_PKEY_RSA, + EVP_PKEY_FLAG_AUTOARGLEN, + pkey_rsa_init, + pkey_rsa_copy, + pkey_rsa_cleanup, + + 0,0, + + 0, + pkey_rsa_keygen, + + 0, + pkey_rsa_sign, + + 0, + pkey_rsa_verify, + + 0, + pkey_rsa_verifyrecover, + + + 0,0,0,0, + + 0, + pkey_rsa_encrypt, + + 0, + pkey_rsa_decrypt, + + 0,0, + + pkey_rsa_ctrl, + pkey_rsa_ctrl_str + + + }; diff --git a/openssl/crypto/rsa/rsa_prn.c b/openssl/crypto/rsa/rsa_prn.c new file mode 100644 index 00000000..224db0fa --- /dev/null +++ b/openssl/crypto/rsa/rsa_prn.c @@ -0,0 +1,93 @@ +/* crypto/rsa/rsa_prn.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2006. + */ +/* ==================================================================== + * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/rsa.h> +#include <openssl/evp.h> + +#ifndef OPENSSL_NO_FP_API +int RSA_print_fp(FILE *fp, const RSA *x, int off) + { + BIO *b; + int ret; + + if ((b=BIO_new(BIO_s_file())) == NULL) + { + RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB); + return(0); + } + BIO_set_fp(b,fp,BIO_NOCLOSE); + ret=RSA_print(b,x,off); + BIO_free(b); + return(ret); + } +#endif + +int RSA_print(BIO *bp, const RSA *x, int off) + { + EVP_PKEY *pk; + int ret; + pk = EVP_PKEY_new(); + if (!pk || !EVP_PKEY_set1_RSA(pk, (RSA *)x)) + return 0; + ret = EVP_PKEY_print_private(bp, pk, off, NULL); + EVP_PKEY_free(pk); + return ret; + } + diff --git a/openssl/crypto/rsa/rsa_pss.c b/openssl/crypto/rsa/rsa_pss.c new file mode 100644 index 00000000..ac211e2f --- /dev/null +++ b/openssl/crypto/rsa/rsa_pss.c @@ -0,0 +1,275 @@ +/* rsa_pss.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2005. + */ +/* ==================================================================== + * Copyright (c) 2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/evp.h> +#include <openssl/rand.h> +#include <openssl/sha.h> + +static const unsigned char zeroes[] = {0,0,0,0,0,0,0,0}; + +#if defined(_MSC_VER) && defined(_ARM_) +#pragma optimize("g", off) +#endif + +int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash, + const EVP_MD *Hash, const unsigned char *EM, int sLen) + { + int i; + int ret = 0; + int hLen, maskedDBLen, MSBits, emLen; + const unsigned char *H; + unsigned char *DB = NULL; + EVP_MD_CTX ctx; + unsigned char H_[EVP_MAX_MD_SIZE]; + + hLen = EVP_MD_size(Hash); + if (hLen < 0) + goto err; + /* + * Negative sLen has special meanings: + * -1 sLen == hLen + * -2 salt length is autorecovered from signature + * -N reserved + */ + if (sLen == -1) sLen = hLen; + else if (sLen == -2) sLen = -2; + else if (sLen < -2) + { + RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_SLEN_CHECK_FAILED); + goto err; + } + + MSBits = (BN_num_bits(rsa->n) - 1) & 0x7; + emLen = RSA_size(rsa); + if (EM[0] & (0xFF << MSBits)) + { + RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_FIRST_OCTET_INVALID); + goto err; + } + if (MSBits == 0) + { + EM++; + emLen--; + } + if (emLen < (hLen + sLen + 2)) /* sLen can be small negative */ + { + RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_DATA_TOO_LARGE); + goto err; + } + if (EM[emLen - 1] != 0xbc) + { + RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_LAST_OCTET_INVALID); + goto err; + } + maskedDBLen = emLen - hLen - 1; + H = EM + maskedDBLen; + DB = OPENSSL_malloc(maskedDBLen); + if (!DB) + { + RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, ERR_R_MALLOC_FAILURE); + goto err; + } + if (PKCS1_MGF1(DB, maskedDBLen, H, hLen, Hash) < 0) + goto err; + for (i = 0; i < maskedDBLen; i++) + DB[i] ^= EM[i]; + if (MSBits) + DB[0] &= 0xFF >> (8 - MSBits); + for (i = 0; DB[i] == 0 && i < (maskedDBLen-1); i++) ; + if (DB[i++] != 0x1) + { + RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_SLEN_RECOVERY_FAILED); + goto err; + } + if (sLen >= 0 && (maskedDBLen - i) != sLen) + { + RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_SLEN_CHECK_FAILED); + goto err; + } + EVP_MD_CTX_init(&ctx); + EVP_DigestInit_ex(&ctx, Hash, NULL); + EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes); + EVP_DigestUpdate(&ctx, mHash, hLen); + if (maskedDBLen - i) + EVP_DigestUpdate(&ctx, DB + i, maskedDBLen - i); + EVP_DigestFinal(&ctx, H_, NULL); + EVP_MD_CTX_cleanup(&ctx); + if (memcmp(H_, H, hLen)) + { + RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_BAD_SIGNATURE); + ret = 0; + } + else + ret = 1; + + err: + if (DB) + OPENSSL_free(DB); + + return ret; + + } + +int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM, + const unsigned char *mHash, + const EVP_MD *Hash, int sLen) + { + int i; + int ret = 0; + int hLen, maskedDBLen, MSBits, emLen; + unsigned char *H, *salt = NULL, *p; + EVP_MD_CTX ctx; + + hLen = EVP_MD_size(Hash); + if (hLen < 0) + goto err; + /* + * Negative sLen has special meanings: + * -1 sLen == hLen + * -2 salt length is maximized + * -N reserved + */ + if (sLen == -1) sLen = hLen; + else if (sLen == -2) sLen = -2; + else if (sLen < -2) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS, RSA_R_SLEN_CHECK_FAILED); + goto err; + } + + MSBits = (BN_num_bits(rsa->n) - 1) & 0x7; + emLen = RSA_size(rsa); + if (MSBits == 0) + { + *EM++ = 0; + emLen--; + } + if (sLen == -2) + { + sLen = emLen - hLen - 2; + } + else if (emLen < (hLen + sLen + 2)) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS, + RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); + goto err; + } + if (sLen > 0) + { + salt = OPENSSL_malloc(sLen); + if (!salt) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS, + ERR_R_MALLOC_FAILURE); + goto err; + } + if (RAND_bytes(salt, sLen) <= 0) + goto err; + } + maskedDBLen = emLen - hLen - 1; + H = EM + maskedDBLen; + EVP_MD_CTX_init(&ctx); + EVP_DigestInit_ex(&ctx, Hash, NULL); + EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes); + EVP_DigestUpdate(&ctx, mHash, hLen); + if (sLen) + EVP_DigestUpdate(&ctx, salt, sLen); + EVP_DigestFinal(&ctx, H, NULL); + EVP_MD_CTX_cleanup(&ctx); + + /* Generate dbMask in place then perform XOR on it */ + if (PKCS1_MGF1(EM, maskedDBLen, H, hLen, Hash)) + goto err; + + p = EM; + + /* Initial PS XORs with all zeroes which is a NOP so just update + * pointer. Note from a test above this value is guaranteed to + * be non-negative. + */ + p += emLen - sLen - hLen - 2; + *p++ ^= 0x1; + if (sLen > 0) + { + for (i = 0; i < sLen; i++) + *p++ ^= salt[i]; + } + if (MSBits) + EM[0] &= 0xFF >> (8 - MSBits); + + /* H is already in place so just set final 0xbc */ + + EM[emLen - 1] = 0xbc; + + ret = 1; + + err: + if (salt) + OPENSSL_free(salt); + + return ret; + + } + +#if defined(_MSC_VER) +#pragma optimize("",on) +#endif diff --git a/openssl/crypto/rsa/rsa_saos.c b/openssl/crypto/rsa/rsa_saos.c new file mode 100644 index 00000000..f98e0a80 --- /dev/null +++ b/openssl/crypto/rsa/rsa_saos.c @@ -0,0 +1,150 @@ +/* crypto/rsa/rsa_saos.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/objects.h> +#include <openssl/x509.h> + +int RSA_sign_ASN1_OCTET_STRING(int type, + const unsigned char *m, unsigned int m_len, + unsigned char *sigret, unsigned int *siglen, RSA *rsa) + { + ASN1_OCTET_STRING sig; + int i,j,ret=1; + unsigned char *p,*s; + + sig.type=V_ASN1_OCTET_STRING; + sig.length=m_len; + sig.data=(unsigned char *)m; + + i=i2d_ASN1_OCTET_STRING(&sig,NULL); + j=RSA_size(rsa); + if (i > (j-RSA_PKCS1_PADDING_SIZE)) + { + RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING,RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY); + return(0); + } + s=(unsigned char *)OPENSSL_malloc((unsigned int)j+1); + if (s == NULL) + { + RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING,ERR_R_MALLOC_FAILURE); + return(0); + } + p=s; + i2d_ASN1_OCTET_STRING(&sig,&p); + i=RSA_private_encrypt(i,s,sigret,rsa,RSA_PKCS1_PADDING); + if (i <= 0) + ret=0; + else + *siglen=i; + + OPENSSL_cleanse(s,(unsigned int)j+1); + OPENSSL_free(s); + return(ret); + } + +int RSA_verify_ASN1_OCTET_STRING(int dtype, + const unsigned char *m, + unsigned int m_len, unsigned char *sigbuf, unsigned int siglen, + RSA *rsa) + { + int i,ret=0; + unsigned char *s; + const unsigned char *p; + ASN1_OCTET_STRING *sig=NULL; + + if (siglen != (unsigned int)RSA_size(rsa)) + { + RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING,RSA_R_WRONG_SIGNATURE_LENGTH); + return(0); + } + + s=(unsigned char *)OPENSSL_malloc((unsigned int)siglen); + if (s == NULL) + { + RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING,ERR_R_MALLOC_FAILURE); + goto err; + } + i=RSA_public_decrypt((int)siglen,sigbuf,s,rsa,RSA_PKCS1_PADDING); + + if (i <= 0) goto err; + + p=s; + sig=d2i_ASN1_OCTET_STRING(NULL,&p,(long)i); + if (sig == NULL) goto err; + + if ( ((unsigned int)sig->length != m_len) || + (memcmp(m,sig->data,m_len) != 0)) + { + RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING,RSA_R_BAD_SIGNATURE); + } + else + ret=1; +err: + if (sig != NULL) M_ASN1_OCTET_STRING_free(sig); + if (s != NULL) + { + OPENSSL_cleanse(s,(unsigned int)siglen); + OPENSSL_free(s); + } + return(ret); + } + diff --git a/openssl/crypto/rsa/rsa_sign.c b/openssl/crypto/rsa/rsa_sign.c new file mode 100644 index 00000000..0be4ec7f --- /dev/null +++ b/openssl/crypto/rsa/rsa_sign.c @@ -0,0 +1,285 @@ +/* crypto/rsa/rsa_sign.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/objects.h> +#include <openssl/x509.h> +#include "rsa_locl.h" + +/* Size of an SSL signature: MD5+SHA1 */ +#define SSL_SIG_LENGTH 36 + +int RSA_sign(int type, const unsigned char *m, unsigned int m_len, + unsigned char *sigret, unsigned int *siglen, RSA *rsa) + { + X509_SIG sig; + ASN1_TYPE parameter; + int i,j,ret=1; + unsigned char *p, *tmps = NULL; + const unsigned char *s = NULL; + X509_ALGOR algor; + ASN1_OCTET_STRING digest; + if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_sign) + { + return rsa->meth->rsa_sign(type, m, m_len, + sigret, siglen, rsa); + } + /* Special case: SSL signature, just check the length */ + if(type == NID_md5_sha1) { + if(m_len != SSL_SIG_LENGTH) { + RSAerr(RSA_F_RSA_SIGN,RSA_R_INVALID_MESSAGE_LENGTH); + return(0); + } + i = SSL_SIG_LENGTH; + s = m; + } else { + sig.algor= &algor; + sig.algor->algorithm=OBJ_nid2obj(type); + if (sig.algor->algorithm == NULL) + { + RSAerr(RSA_F_RSA_SIGN,RSA_R_UNKNOWN_ALGORITHM_TYPE); + return(0); + } + if (sig.algor->algorithm->length == 0) + { + RSAerr(RSA_F_RSA_SIGN,RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD); + return(0); + } + parameter.type=V_ASN1_NULL; + parameter.value.ptr=NULL; + sig.algor->parameter= ¶meter; + + sig.digest= &digest; + sig.digest->data=(unsigned char *)m; /* TMP UGLY CAST */ + sig.digest->length=m_len; + + i=i2d_X509_SIG(&sig,NULL); + } + j=RSA_size(rsa); + if (i > (j-RSA_PKCS1_PADDING_SIZE)) + { + RSAerr(RSA_F_RSA_SIGN,RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY); + return(0); + } + if(type != NID_md5_sha1) { + tmps=(unsigned char *)OPENSSL_malloc((unsigned int)j+1); + if (tmps == NULL) + { + RSAerr(RSA_F_RSA_SIGN,ERR_R_MALLOC_FAILURE); + return(0); + } + p=tmps; + i2d_X509_SIG(&sig,&p); + s=tmps; + } + i=RSA_private_encrypt(i,s,sigret,rsa,RSA_PKCS1_PADDING); + if (i <= 0) + ret=0; + else + *siglen=i; + + if(type != NID_md5_sha1) { + OPENSSL_cleanse(tmps,(unsigned int)j+1); + OPENSSL_free(tmps); + } + return(ret); + } + +int int_rsa_verify(int dtype, const unsigned char *m, + unsigned int m_len, + unsigned char *rm, size_t *prm_len, + const unsigned char *sigbuf, size_t siglen, + RSA *rsa) + { + int i,ret=0,sigtype; + unsigned char *s; + X509_SIG *sig=NULL; + + if (siglen != (unsigned int)RSA_size(rsa)) + { + RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH); + return(0); + } + + if((dtype == NID_md5_sha1) && rm) + { + i = RSA_public_decrypt((int)siglen, + sigbuf,rm,rsa,RSA_PKCS1_PADDING); + if (i <= 0) + return 0; + *prm_len = i; + return 1; + } + + s=(unsigned char *)OPENSSL_malloc((unsigned int)siglen); + if (s == NULL) + { + RSAerr(RSA_F_INT_RSA_VERIFY,ERR_R_MALLOC_FAILURE); + goto err; + } + if((dtype == NID_md5_sha1) && (m_len != SSL_SIG_LENGTH) ) { + RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_INVALID_MESSAGE_LENGTH); + goto err; + } + i=RSA_public_decrypt((int)siglen,sigbuf,s,rsa,RSA_PKCS1_PADDING); + + if (i <= 0) goto err; + + /* Special case: SSL signature */ + if(dtype == NID_md5_sha1) { + if((i != SSL_SIG_LENGTH) || memcmp(s, m, SSL_SIG_LENGTH)) + RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE); + else ret = 1; + } else { + const unsigned char *p=s; + sig=d2i_X509_SIG(NULL,&p,(long)i); + + if (sig == NULL) goto err; + + /* Excess data can be used to create forgeries */ + if(p != s+i) + { + RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE); + goto err; + } + + /* Parameters to the signature algorithm can also be used to + create forgeries */ + if(sig->algor->parameter + && ASN1_TYPE_get(sig->algor->parameter) != V_ASN1_NULL) + { + RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE); + goto err; + } + + sigtype=OBJ_obj2nid(sig->algor->algorithm); + + + #ifdef RSA_DEBUG + /* put a backward compatibility flag in EAY */ + fprintf(stderr,"in(%s) expect(%s)\n",OBJ_nid2ln(sigtype), + OBJ_nid2ln(dtype)); + #endif + if (sigtype != dtype) + { + if (((dtype == NID_md5) && + (sigtype == NID_md5WithRSAEncryption)) || + ((dtype == NID_md2) && + (sigtype == NID_md2WithRSAEncryption))) + { + /* ok, we will let it through */ +#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16) + fprintf(stderr,"signature has problems, re-make with post SSLeay045\n"); +#endif + } + else + { + RSAerr(RSA_F_INT_RSA_VERIFY, + RSA_R_ALGORITHM_MISMATCH); + goto err; + } + } + if (rm) + { + const EVP_MD *md; + md = EVP_get_digestbynid(dtype); + if (md && (EVP_MD_size(md) != sig->digest->length)) + RSAerr(RSA_F_INT_RSA_VERIFY, + RSA_R_INVALID_DIGEST_LENGTH); + else + { + memcpy(rm, sig->digest->data, + sig->digest->length); + *prm_len = sig->digest->length; + ret = 1; + } + } + else if (((unsigned int)sig->digest->length != m_len) || + (memcmp(m,sig->digest->data,m_len) != 0)) + { + RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE); + } + else + ret=1; + } +err: + if (sig != NULL) X509_SIG_free(sig); + if (s != NULL) + { + OPENSSL_cleanse(s,(unsigned int)siglen); + OPENSSL_free(s); + } + return(ret); + } + +int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len, + const unsigned char *sigbuf, unsigned int siglen, + RSA *rsa) + { + + if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_verify) + { + return rsa->meth->rsa_verify(dtype, m, m_len, + sigbuf, siglen, rsa); + } + + return int_rsa_verify(dtype, m, m_len, NULL, NULL, sigbuf, siglen, rsa); + } diff --git a/openssl/crypto/rsa/rsa_ssl.c b/openssl/crypto/rsa/rsa_ssl.c new file mode 100644 index 00000000..cfeff15b --- /dev/null +++ b/openssl/crypto/rsa/rsa_ssl.c @@ -0,0 +1,154 @@ +/* crypto/rsa/rsa_ssl.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/rand.h> + +int RSA_padding_add_SSLv23(unsigned char *to, int tlen, + const unsigned char *from, int flen) + { + int i,j; + unsigned char *p; + + if (flen > (tlen-11)) + { + RSAerr(RSA_F_RSA_PADDING_ADD_SSLV23,RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); + return(0); + } + + p=(unsigned char *)to; + + *(p++)=0; + *(p++)=2; /* Public Key BT (Block Type) */ + + /* pad out with non-zero random data */ + j=tlen-3-8-flen; + + if (RAND_bytes(p,j) <= 0) + return(0); + for (i=0; i<j; i++) + { + if (*p == '\0') + do { + if (RAND_bytes(p,1) <= 0) + return(0); + } while (*p == '\0'); + p++; + } + + memset(p,3,8); + p+=8; + *(p++)='\0'; + + memcpy(p,from,(unsigned int)flen); + return(1); + } + +int RSA_padding_check_SSLv23(unsigned char *to, int tlen, + const unsigned char *from, int flen, int num) + { + int i,j,k; + const unsigned char *p; + + p=from; + if (flen < 10) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23,RSA_R_DATA_TOO_SMALL); + return(-1); + } + if ((num != (flen+1)) || (*(p++) != 02)) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23,RSA_R_BLOCK_TYPE_IS_NOT_02); + return(-1); + } + + /* scan over padding data */ + j=flen-1; /* one for type */ + for (i=0; i<j; i++) + if (*(p++) == 0) break; + + if ((i == j) || (i < 8)) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23,RSA_R_NULL_BEFORE_BLOCK_MISSING); + return(-1); + } + for (k = -9; k<-1; k++) + { + if (p[k] != 0x03) break; + } + if (k == -1) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23,RSA_R_SSLV3_ROLLBACK_ATTACK); + return(-1); + } + + i++; /* Skip over the '\0' */ + j-=i; + if (j > tlen) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23,RSA_R_DATA_TOO_LARGE); + return(-1); + } + memcpy(to,p,(unsigned int)j); + + return(j); + } + diff --git a/openssl/crypto/rsa/rsa_test.c b/openssl/crypto/rsa/rsa_test.c new file mode 100644 index 00000000..c8705a0f --- /dev/null +++ b/openssl/crypto/rsa/rsa_test.c @@ -0,0 +1,340 @@ +/* test vectors from p1ovect1.txt */ + +#include <stdio.h> +#include <string.h> + +#include "e_os.h" + +#include <openssl/crypto.h> +#include <openssl/err.h> +#include <openssl/rand.h> +#include <openssl/bn.h> +#ifdef OPENSSL_NO_RSA +int main(int argc, char *argv[]) +{ + printf("No RSA support\n"); + return(0); +} +#else +#include <openssl/rsa.h> + +#define SetKey \ + key->n = BN_bin2bn(n, sizeof(n)-1, key->n); \ + key->e = BN_bin2bn(e, sizeof(e)-1, key->e); \ + key->d = BN_bin2bn(d, sizeof(d)-1, key->d); \ + key->p = BN_bin2bn(p, sizeof(p)-1, key->p); \ + key->q = BN_bin2bn(q, sizeof(q)-1, key->q); \ + key->dmp1 = BN_bin2bn(dmp1, sizeof(dmp1)-1, key->dmp1); \ + key->dmq1 = BN_bin2bn(dmq1, sizeof(dmq1)-1, key->dmq1); \ + key->iqmp = BN_bin2bn(iqmp, sizeof(iqmp)-1, key->iqmp); \ + memcpy(c, ctext_ex, sizeof(ctext_ex) - 1); \ + return (sizeof(ctext_ex) - 1); + +static int key1(RSA *key, unsigned char *c) + { + static unsigned char n[] = +"\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F" +"\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5" +"\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93" +"\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1" +"\xF5"; + + static unsigned char e[] = "\x11"; + + static unsigned char d[] = +"\x0A\x03\x37\x48\x62\x64\x87\x69\x5F\x5F\x30\xBC\x38\xB9\x8B\x44" +"\xC2\xCD\x2D\xFF\x43\x40\x98\xCD\x20\xD8\xA1\x38\xD0\x90\xBF\x64" +"\x79\x7C\x3F\xA7\xA2\xCD\xCB\x3C\xD1\xE0\xBD\xBA\x26\x54\xB4\xF9" +"\xDF\x8E\x8A\xE5\x9D\x73\x3D\x9F\x33\xB3\x01\x62\x4A\xFD\x1D\x51"; + + static unsigned char p[] = +"\x00\xD8\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5" +"\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x12" +"\x0D"; + + static unsigned char q[] = +"\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9" +"\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D" +"\x89"; + + static unsigned char dmp1[] = +"\x59\x0B\x95\x72\xA2\xC2\xA9\xC4\x06\x05\x9D\xC2\xAB\x2F\x1D\xAF" +"\xEB\x7E\x8B\x4F\x10\xA7\x54\x9E\x8E\xED\xF5\xB4\xFC\xE0\x9E\x05"; + + static unsigned char dmq1[] = +"\x00\x8E\x3C\x05\x21\xFE\x15\xE0\xEA\x06\xA3\x6F\xF0\xF1\x0C\x99" +"\x52\xC3\x5B\x7A\x75\x14\xFD\x32\x38\xB8\x0A\xAD\x52\x98\x62\x8D" +"\x51"; + + static unsigned char iqmp[] = +"\x36\x3F\xF7\x18\x9D\xA8\xE9\x0B\x1D\x34\x1F\x71\xD0\x9B\x76\xA8" +"\xA9\x43\xE1\x1D\x10\xB2\x4D\x24\x9F\x2D\xEA\xFE\xF8\x0C\x18\x26"; + + static unsigned char ctext_ex[] = +"\x1b\x8f\x05\xf9\xca\x1a\x79\x52\x6e\x53\xf3\xcc\x51\x4f\xdb\x89" +"\x2b\xfb\x91\x93\x23\x1e\x78\xb9\x92\xe6\x8d\x50\xa4\x80\xcb\x52" +"\x33\x89\x5c\x74\x95\x8d\x5d\x02\xab\x8c\x0f\xd0\x40\xeb\x58\x44" +"\xb0\x05\xc3\x9e\xd8\x27\x4a\x9d\xbf\xa8\x06\x71\x40\x94\x39\xd2"; + + SetKey; + } + +static int key2(RSA *key, unsigned char *c) + { + static unsigned char n[] = +"\x00\xA3\x07\x9A\x90\xDF\x0D\xFD\x72\xAC\x09\x0C\xCC\x2A\x78\xB8" +"\x74\x13\x13\x3E\x40\x75\x9C\x98\xFA\xF8\x20\x4F\x35\x8A\x0B\x26" +"\x3C\x67\x70\xE7\x83\xA9\x3B\x69\x71\xB7\x37\x79\xD2\x71\x7B\xE8" +"\x34\x77\xCF"; + + static unsigned char e[] = "\x3"; + + static unsigned char d[] = +"\x6C\xAF\xBC\x60\x94\xB3\xFE\x4C\x72\xB0\xB3\x32\xC6\xFB\x25\xA2" +"\xB7\x62\x29\x80\x4E\x68\x65\xFC\xA4\x5A\x74\xDF\x0F\x8F\xB8\x41" +"\x3B\x52\xC0\xD0\xE5\x3D\x9B\x59\x0F\xF1\x9B\xE7\x9F\x49\xDD\x21" +"\xE5\xEB"; + + static unsigned char p[] = +"\x00\xCF\x20\x35\x02\x8B\x9D\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92" +"\xEA\x0D\xA3\xB4\x32\x04\xB5\xCF\xCE\x91"; + + static unsigned char q[] = +"\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9" +"\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5F"; + + static unsigned char dmp1[] = +"\x00\x8A\x15\x78\xAC\x5D\x13\xAF\x10\x2B\x22\xB9\x99\xCD\x74\x61" +"\xF1\x5E\x6D\x22\xCC\x03\x23\xDF\xDF\x0B"; + + static unsigned char dmq1[] = +"\x00\x86\x55\x21\x4A\xC5\x4D\x8D\x4E\xCD\x61\x77\xF1\xC7\x36\x90" +"\xCE\x2A\x48\x2C\x8B\x05\x99\xCB\xE0\x3F"; + + static unsigned char iqmp[] = +"\x00\x83\xEF\xEF\xB8\xA9\xA4\x0D\x1D\xB6\xED\x98\xAD\x84\xED\x13" +"\x35\xDC\xC1\x08\xF3\x22\xD0\x57\xCF\x8D"; + + static unsigned char ctext_ex[] = +"\x14\xbd\xdd\x28\xc9\x83\x35\x19\x23\x80\xe8\xe5\x49\xb1\x58\x2a" +"\x8b\x40\xb4\x48\x6d\x03\xa6\xa5\x31\x1f\x1f\xd5\xf0\xa1\x80\xe4" +"\x17\x53\x03\x29\xa9\x34\x90\x74\xb1\x52\x13\x54\x29\x08\x24\x52" +"\x62\x51"; + + SetKey; + } + +static int key3(RSA *key, unsigned char *c) + { + static unsigned char n[] = +"\x00\xBB\xF8\x2F\x09\x06\x82\xCE\x9C\x23\x38\xAC\x2B\x9D\xA8\x71" +"\xF7\x36\x8D\x07\xEE\xD4\x10\x43\xA4\x40\xD6\xB6\xF0\x74\x54\xF5" +"\x1F\xB8\xDF\xBA\xAF\x03\x5C\x02\xAB\x61\xEA\x48\xCE\xEB\x6F\xCD" +"\x48\x76\xED\x52\x0D\x60\xE1\xEC\x46\x19\x71\x9D\x8A\x5B\x8B\x80" +"\x7F\xAF\xB8\xE0\xA3\xDF\xC7\x37\x72\x3E\xE6\xB4\xB7\xD9\x3A\x25" +"\x84\xEE\x6A\x64\x9D\x06\x09\x53\x74\x88\x34\xB2\x45\x45\x98\x39" +"\x4E\xE0\xAA\xB1\x2D\x7B\x61\xA5\x1F\x52\x7A\x9A\x41\xF6\xC1\x68" +"\x7F\xE2\x53\x72\x98\xCA\x2A\x8F\x59\x46\xF8\xE5\xFD\x09\x1D\xBD" +"\xCB"; + + static unsigned char e[] = "\x11"; + + static unsigned char d[] = +"\x00\xA5\xDA\xFC\x53\x41\xFA\xF2\x89\xC4\xB9\x88\xDB\x30\xC1\xCD" +"\xF8\x3F\x31\x25\x1E\x06\x68\xB4\x27\x84\x81\x38\x01\x57\x96\x41" +"\xB2\x94\x10\xB3\xC7\x99\x8D\x6B\xC4\x65\x74\x5E\x5C\x39\x26\x69" +"\xD6\x87\x0D\xA2\xC0\x82\xA9\x39\xE3\x7F\xDC\xB8\x2E\xC9\x3E\xDA" +"\xC9\x7F\xF3\xAD\x59\x50\xAC\xCF\xBC\x11\x1C\x76\xF1\xA9\x52\x94" +"\x44\xE5\x6A\xAF\x68\xC5\x6C\x09\x2C\xD3\x8D\xC3\xBE\xF5\xD2\x0A" +"\x93\x99\x26\xED\x4F\x74\xA1\x3E\xDD\xFB\xE1\xA1\xCE\xCC\x48\x94" +"\xAF\x94\x28\xC2\xB7\xB8\x88\x3F\xE4\x46\x3A\x4B\xC8\x5B\x1C\xB3" +"\xC1"; + + static unsigned char p[] = +"\x00\xEE\xCF\xAE\x81\xB1\xB9\xB3\xC9\x08\x81\x0B\x10\xA1\xB5\x60" +"\x01\x99\xEB\x9F\x44\xAE\xF4\xFD\xA4\x93\xB8\x1A\x9E\x3D\x84\xF6" +"\x32\x12\x4E\xF0\x23\x6E\x5D\x1E\x3B\x7E\x28\xFA\xE7\xAA\x04\x0A" +"\x2D\x5B\x25\x21\x76\x45\x9D\x1F\x39\x75\x41\xBA\x2A\x58\xFB\x65" +"\x99"; + + static unsigned char q[] = +"\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9" +"\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D" +"\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5" +"\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x15" +"\x03"; + + static unsigned char dmp1[] = +"\x54\x49\x4C\xA6\x3E\xBA\x03\x37\xE4\xE2\x40\x23\xFC\xD6\x9A\x5A" +"\xEB\x07\xDD\xDC\x01\x83\xA4\xD0\xAC\x9B\x54\xB0\x51\xF2\xB1\x3E" +"\xD9\x49\x09\x75\xEA\xB7\x74\x14\xFF\x59\xC1\xF7\x69\x2E\x9A\x2E" +"\x20\x2B\x38\xFC\x91\x0A\x47\x41\x74\xAD\xC9\x3C\x1F\x67\xC9\x81"; + + static unsigned char dmq1[] = +"\x47\x1E\x02\x90\xFF\x0A\xF0\x75\x03\x51\xB7\xF8\x78\x86\x4C\xA9" +"\x61\xAD\xBD\x3A\x8A\x7E\x99\x1C\x5C\x05\x56\xA9\x4C\x31\x46\xA7" +"\xF9\x80\x3F\x8F\x6F\x8A\xE3\x42\xE9\x31\xFD\x8A\xE4\x7A\x22\x0D" +"\x1B\x99\xA4\x95\x84\x98\x07\xFE\x39\xF9\x24\x5A\x98\x36\xDA\x3D"; + + static unsigned char iqmp[] = +"\x00\xB0\x6C\x4F\xDA\xBB\x63\x01\x19\x8D\x26\x5B\xDB\xAE\x94\x23" +"\xB3\x80\xF2\x71\xF7\x34\x53\x88\x50\x93\x07\x7F\xCD\x39\xE2\x11" +"\x9F\xC9\x86\x32\x15\x4F\x58\x83\xB1\x67\xA9\x67\xBF\x40\x2B\x4E" +"\x9E\x2E\x0F\x96\x56\xE6\x98\xEA\x36\x66\xED\xFB\x25\x79\x80\x39" +"\xF7"; + + static unsigned char ctext_ex[] = +"\xb8\x24\x6b\x56\xa6\xed\x58\x81\xae\xb5\x85\xd9\xa2\x5b\x2a\xd7" +"\x90\xc4\x17\xe0\x80\x68\x1b\xf1\xac\x2b\xc3\xde\xb6\x9d\x8b\xce" +"\xf0\xc4\x36\x6f\xec\x40\x0a\xf0\x52\xa7\x2e\x9b\x0e\xff\xb5\xb3" +"\xf2\xf1\x92\xdb\xea\xca\x03\xc1\x27\x40\x05\x71\x13\xbf\x1f\x06" +"\x69\xac\x22\xe9\xf3\xa7\x85\x2e\x3c\x15\xd9\x13\xca\xb0\xb8\x86" +"\x3a\x95\xc9\x92\x94\xce\x86\x74\x21\x49\x54\x61\x03\x46\xf4\xd4" +"\x74\xb2\x6f\x7c\x48\xb4\x2e\xe6\x8e\x1f\x57\x2a\x1f\xc4\x02\x6a" +"\xc4\x56\xb4\xf5\x9f\x7b\x62\x1e\xa1\xb9\xd8\x8f\x64\x20\x2f\xb1"; + + SetKey; + } + +static int pad_unknown(void) +{ + unsigned long l; + while ((l = ERR_get_error()) != 0) + if (ERR_GET_REASON(l) == RSA_R_UNKNOWN_PADDING_TYPE) + return(1); + return(0); +} + +static const char rnd_seed[] = "string to make the random number generator think it has entropy"; + +int main(int argc, char *argv[]) + { + int err=0; + int v; + RSA *key; + unsigned char ptext[256]; + unsigned char ctext[256]; + static unsigned char ptext_ex[] = "\x54\x85\x9b\x34\x2c\x49\xea\x2a"; + unsigned char ctext_ex[256]; + int plen; + int clen = 0; + int num; + int n; + + CRYPTO_malloc_debug_init(); + CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL); + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); + + RAND_seed(rnd_seed, sizeof rnd_seed); /* or OAEP may fail */ + + plen = sizeof(ptext_ex) - 1; + + for (v = 0; v < 6; v++) + { + key = RSA_new(); + switch (v%3) { + case 0: + clen = key1(key, ctext_ex); + break; + case 1: + clen = key2(key, ctext_ex); + break; + case 2: + clen = key3(key, ctext_ex); + break; + } + if (v/3 >= 1) key->flags |= RSA_FLAG_NO_CONSTTIME; + + num = RSA_public_encrypt(plen, ptext_ex, ctext, key, + RSA_PKCS1_PADDING); + if (num != clen) + { + printf("PKCS#1 v1.5 encryption failed!\n"); + err=1; + goto oaep; + } + + num = RSA_private_decrypt(num, ctext, ptext, key, + RSA_PKCS1_PADDING); + if (num != plen || memcmp(ptext, ptext_ex, num) != 0) + { + printf("PKCS#1 v1.5 decryption failed!\n"); + err=1; + } + else + printf("PKCS #1 v1.5 encryption/decryption ok\n"); + + oaep: + ERR_clear_error(); + num = RSA_public_encrypt(plen, ptext_ex, ctext, key, + RSA_PKCS1_OAEP_PADDING); + if (num == -1 && pad_unknown()) + { + printf("No OAEP support\n"); + goto next; + } + if (num != clen) + { + printf("OAEP encryption failed!\n"); + err=1; + goto next; + } + + num = RSA_private_decrypt(num, ctext, ptext, key, + RSA_PKCS1_OAEP_PADDING); + if (num != plen || memcmp(ptext, ptext_ex, num) != 0) + { + printf("OAEP decryption (encrypted data) failed!\n"); + err=1; + } + else if (memcmp(ctext, ctext_ex, num) == 0) + printf("OAEP test vector %d passed!\n", v); + + /* Different ciphertexts (rsa_oaep.c without -DPKCS_TESTVECT). + Try decrypting ctext_ex */ + + num = RSA_private_decrypt(clen, ctext_ex, ptext, key, + RSA_PKCS1_OAEP_PADDING); + + if (num != plen || memcmp(ptext, ptext_ex, num) != 0) + { + printf("OAEP decryption (test vector data) failed!\n"); + err=1; + } + else + printf("OAEP encryption/decryption ok\n"); + + /* Try decrypting corrupted ciphertexts */ + for(n = 0 ; n < clen ; ++n) + { + int b; + unsigned char saved = ctext[n]; + for(b = 0 ; b < 256 ; ++b) + { + if(b == saved) + continue; + ctext[n] = b; + num = RSA_private_decrypt(num, ctext, ptext, key, + RSA_PKCS1_OAEP_PADDING); + if(num > 0) + { + printf("Corrupt data decrypted!\n"); + err = 1; + } + } + } + next: + RSA_free(key); + } + + CRYPTO_cleanup_all_ex_data(); + ERR_remove_thread_state(NULL); + + CRYPTO_mem_leaks_fp(stderr); + +#ifdef OPENSSL_SYS_NETWARE + if (err) printf("ERROR: %d\n", err); +#endif + return err; + } +#endif diff --git a/openssl/crypto/rsa/rsa_x931.c b/openssl/crypto/rsa/rsa_x931.c new file mode 100644 index 00000000..21548e37 --- /dev/null +++ b/openssl/crypto/rsa/rsa_x931.c @@ -0,0 +1,177 @@ +/* rsa_x931.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2005. + */ +/* ==================================================================== + * Copyright (c) 2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/rand.h> +#include <openssl/objects.h> + +int RSA_padding_add_X931(unsigned char *to, int tlen, + const unsigned char *from, int flen) + { + int j; + unsigned char *p; + + /* Absolute minimum amount of padding is 1 header nibble, 1 padding + * nibble and 2 trailer bytes: but 1 hash if is already in 'from'. + */ + + j = tlen - flen - 2; + + if (j < 0) + { + RSAerr(RSA_F_RSA_PADDING_ADD_X931,RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); + return -1; + } + + p=(unsigned char *)to; + + /* If no padding start and end nibbles are in one byte */ + if (j == 0) + *p++ = 0x6A; + else + { + *p++ = 0x6B; + if (j > 1) + { + memset(p, 0xBB, j - 1); + p += j - 1; + } + *p++ = 0xBA; + } + memcpy(p,from,(unsigned int)flen); + p += flen; + *p = 0xCC; + return(1); + } + +int RSA_padding_check_X931(unsigned char *to, int tlen, + const unsigned char *from, int flen, int num) + { + int i = 0,j; + const unsigned char *p; + + p=from; + if ((num != flen) || ((*p != 0x6A) && (*p != 0x6B))) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_X931,RSA_R_INVALID_HEADER); + return -1; + } + + if (*p++ == 0x6B) + { + j=flen-3; + for (i = 0; i < j; i++) + { + unsigned char c = *p++; + if (c == 0xBA) + break; + if (c != 0xBB) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_X931, + RSA_R_INVALID_PADDING); + return -1; + } + } + + j -= i; + + if (i == 0) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_X931, RSA_R_INVALID_PADDING); + return -1; + } + + } + else j = flen - 2; + + if (p[j] != 0xCC) + { + RSAerr(RSA_F_RSA_PADDING_CHECK_X931, RSA_R_INVALID_TRAILER); + return -1; + } + + memcpy(to,p,(unsigned int)j); + + return(j); + } + +/* Translate between X931 hash ids and NIDs */ + +int RSA_X931_hash_id(int nid) + { + switch (nid) + { + case NID_sha1: + return 0x33; + + case NID_sha256: + return 0x34; + + case NID_sha384: + return 0x36; + + case NID_sha512: + return 0x35; + + } + return -1; + } + |