diff options
Diffstat (limited to 'openssl/crypto/asn1/n_pkey.c')
| -rw-r--r-- | openssl/crypto/asn1/n_pkey.c | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/openssl/crypto/asn1/n_pkey.c b/openssl/crypto/asn1/n_pkey.c new file mode 100644 index 00000000..e7d04390 --- /dev/null +++ b/openssl/crypto/asn1/n_pkey.c @@ -0,0 +1,343 @@ +/* crypto/asn1/n_pkey.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" +#ifndef OPENSSL_NO_RSA +#include <openssl/rsa.h> +#include <openssl/objects.h> +#include <openssl/asn1t.h> +#include <openssl/asn1_mac.h> +#include <openssl/evp.h> +#include <openssl/x509.h> + + +#ifndef OPENSSL_NO_RC4 + +typedef struct netscape_pkey_st + { + long version; + X509_ALGOR *algor; + ASN1_OCTET_STRING *private_key; + } NETSCAPE_PKEY; + +typedef struct netscape_encrypted_pkey_st + { + ASN1_OCTET_STRING *os; + /* This is the same structure as DigestInfo so use it: + * although this isn't really anything to do with + * digests. + */ + X509_SIG *enckey; + } NETSCAPE_ENCRYPTED_PKEY; + + +ASN1_BROKEN_SEQUENCE(NETSCAPE_ENCRYPTED_PKEY) = { + ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, os, ASN1_OCTET_STRING), + ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, enckey, X509_SIG) +} ASN1_BROKEN_SEQUENCE_END(NETSCAPE_ENCRYPTED_PKEY) + +DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY) +DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY,NETSCAPE_ENCRYPTED_PKEY) +IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY) + +ASN1_SEQUENCE(NETSCAPE_PKEY) = { + ASN1_SIMPLE(NETSCAPE_PKEY, version, LONG), + ASN1_SIMPLE(NETSCAPE_PKEY, algor, X509_ALGOR), + ASN1_SIMPLE(NETSCAPE_PKEY, private_key, ASN1_OCTET_STRING) +} ASN1_SEQUENCE_END(NETSCAPE_PKEY) + +DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_PKEY) +DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_PKEY,NETSCAPE_PKEY) +IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_PKEY) + +static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os, + 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)) +{ + return i2d_RSA_NET(a, pp, cb, 0); +} + +int i2d_RSA_NET(const RSA *a, unsigned char **pp, + int (*cb)(char *buf, int len, const char *prompt, int verify), + int sgckey) + { + int i, j, ret = 0; + int rsalen, pkeylen, olen; + NETSCAPE_PKEY *pkey = NULL; + NETSCAPE_ENCRYPTED_PKEY *enckey = NULL; + unsigned char buf[256],*zz; + unsigned char key[EVP_MAX_KEY_LENGTH]; + EVP_CIPHER_CTX ctx; + + if (a == NULL) return(0); + + if ((pkey=NETSCAPE_PKEY_new()) == NULL) goto err; + if ((enckey=NETSCAPE_ENCRYPTED_PKEY_new()) == NULL) goto err; + pkey->version = 0; + + pkey->algor->algorithm=OBJ_nid2obj(NID_rsaEncryption); + if ((pkey->algor->parameter=ASN1_TYPE_new()) == NULL) goto err; + pkey->algor->parameter->type=V_ASN1_NULL; + + rsalen = i2d_RSAPrivateKey(a, NULL); + + /* Fake some octet strings just for the initial length + * calculation. + */ + + pkey->private_key->length=rsalen; + + pkeylen=i2d_NETSCAPE_PKEY(pkey,NULL); + + enckey->enckey->digest->length = pkeylen; + + enckey->os->length = 11; /* "private-key" */ + + enckey->enckey->algor->algorithm=OBJ_nid2obj(NID_rc4); + if ((enckey->enckey->algor->parameter=ASN1_TYPE_new()) == NULL) goto err; + enckey->enckey->algor->parameter->type=V_ASN1_NULL; + + if (pp == NULL) + { + olen = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, NULL); + NETSCAPE_PKEY_free(pkey); + NETSCAPE_ENCRYPTED_PKEY_free(enckey); + return olen; + } + + + /* Since its RC4 encrypted length is actual length */ + if ((zz=(unsigned char *)OPENSSL_malloc(rsalen)) == NULL) + { + ASN1err(ASN1_F_I2D_RSA_NET,ERR_R_MALLOC_FAILURE); + goto err; + } + + pkey->private_key->data = zz; + /* Write out private key encoding */ + i2d_RSAPrivateKey(a,&zz); + + if ((zz=OPENSSL_malloc(pkeylen)) == NULL) + { + ASN1err(ASN1_F_I2D_RSA_NET,ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!ASN1_STRING_set(enckey->os, "private-key", -1)) + { + ASN1err(ASN1_F_I2D_RSA_NET,ERR_R_MALLOC_FAILURE); + goto err; + } + enckey->enckey->digest->data = zz; + i2d_NETSCAPE_PKEY(pkey,&zz); + + /* Wipe the private key encoding */ + OPENSSL_cleanse(pkey->private_key->data, rsalen); + + if (cb == NULL) + cb=EVP_read_pw_string; + i=cb((char *)buf,256,"Enter Private Key password:",1); + if (i != 0) + { + ASN1err(ASN1_F_I2D_RSA_NET,ASN1_R_BAD_PASSWORD_READ); + goto err; + } + i = strlen((char *)buf); + /* If the key is used for SGC the algorithm is modified a little. */ + if(sgckey) { + EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL); + memcpy(buf + 16, "SGCKEYSALT", 10); + i = 26; + } + + EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,i,1,key,NULL); + OPENSSL_cleanse(buf,256); + + /* Encrypt private key in place */ + zz = enckey->enckey->digest->data; + EVP_CIPHER_CTX_init(&ctx); + EVP_EncryptInit_ex(&ctx,EVP_rc4(),NULL,key,NULL); + EVP_EncryptUpdate(&ctx,zz,&i,zz,pkeylen); + EVP_EncryptFinal_ex(&ctx,zz + i,&j); + EVP_CIPHER_CTX_cleanup(&ctx); + + ret = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, pp); +err: + NETSCAPE_ENCRYPTED_PKEY_free(enckey); + NETSCAPE_PKEY_free(pkey); + return(ret); + } + + +RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length, + int (*cb)(char *buf, int len, const char *prompt, + int verify)) +{ + return d2i_RSA_NET(a, pp, length, cb, 0); +} + +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) + { + RSA *ret=NULL; + const unsigned char *p; + NETSCAPE_ENCRYPTED_PKEY *enckey = NULL; + + p = *pp; + + enckey = d2i_NETSCAPE_ENCRYPTED_PKEY(NULL, &p, length); + if(!enckey) { + ASN1err(ASN1_F_D2I_RSA_NET,ASN1_R_DECODING_ERROR); + return NULL; + } + + if ((enckey->os->length != 11) || (strncmp("private-key", + (char *)enckey->os->data,11) != 0)) + { + ASN1err(ASN1_F_D2I_RSA_NET,ASN1_R_PRIVATE_KEY_HEADER_MISSING); + NETSCAPE_ENCRYPTED_PKEY_free(enckey); + return NULL; + } + if (OBJ_obj2nid(enckey->enckey->algor->algorithm) != NID_rc4) + { + ASN1err(ASN1_F_D2I_RSA_NET,ASN1_R_UNSUPPORTED_ENCRYPTION_ALGORITHM); + goto err; + } + if (cb == NULL) + cb=EVP_read_pw_string; + if ((ret=d2i_RSA_NET_2(a, enckey->enckey->digest,cb, sgckey)) == NULL) goto err; + + *pp = p; + + err: + NETSCAPE_ENCRYPTED_PKEY_free(enckey); + return ret; + + } + +static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os, + int (*cb)(char *buf, int len, const char *prompt, + int verify), int sgckey) + { + NETSCAPE_PKEY *pkey=NULL; + RSA *ret=NULL; + int i,j; + unsigned char buf[256]; + const unsigned char *zz; + unsigned char key[EVP_MAX_KEY_LENGTH]; + EVP_CIPHER_CTX ctx; + + i=cb((char *)buf,256,"Enter Private Key password:",0); + if (i != 0) + { + ASN1err(ASN1_F_D2I_RSA_NET_2,ASN1_R_BAD_PASSWORD_READ); + goto err; + } + + i = strlen((char *)buf); + if(sgckey){ + EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL); + memcpy(buf + 16, "SGCKEYSALT", 10); + i = 26; + } + + EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,i,1,key,NULL); + OPENSSL_cleanse(buf,256); + + EVP_CIPHER_CTX_init(&ctx); + EVP_DecryptInit_ex(&ctx,EVP_rc4(),NULL, key,NULL); + EVP_DecryptUpdate(&ctx,os->data,&i,os->data,os->length); + EVP_DecryptFinal_ex(&ctx,&(os->data[i]),&j); + EVP_CIPHER_CTX_cleanup(&ctx); + os->length=i+j; + + zz=os->data; + + if ((pkey=d2i_NETSCAPE_PKEY(NULL,&zz,os->length)) == NULL) + { + ASN1err(ASN1_F_D2I_RSA_NET_2,ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY); + goto err; + } + + zz=pkey->private_key->data; + if ((ret=d2i_RSAPrivateKey(a,&zz,pkey->private_key->length)) == NULL) + { + ASN1err(ASN1_F_D2I_RSA_NET_2,ASN1_R_UNABLE_TO_DECODE_RSA_KEY); + goto err; + } +err: + NETSCAPE_PKEY_free(pkey); + return(ret); + } + +#endif /* OPENSSL_NO_RC4 */ + +#else /* !OPENSSL_NO_RSA */ + +# if PEDANTIC +static void *dummy=&dummy; +# endif + +#endif |