diff options
Diffstat (limited to 'openssl/crypto/pem/pem_pkey.c')
| -rw-r--r-- | openssl/crypto/pem/pem_pkey.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/openssl/crypto/pem/pem_pkey.c b/openssl/crypto/pem/pem_pkey.c new file mode 100644 index 00000000..8ecf2490 --- /dev/null +++ b/openssl/crypto/pem/pem_pkey.c @@ -0,0 +1,242 @@ +/* crypto/pem/pem_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" +#include <openssl/buffer.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/rand.h> +#include <openssl/x509.h> +#include <openssl/pkcs12.h> +#include <openssl/pem.h> +#ifndef OPENSSL_NO_ENGINE +#include <openssl/engine.h> +#endif +#include "asn1_locl.h" + +int pem_check_suffix(const char *pem_str, const char *suffix); + +EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u) + { + char *nm=NULL; + const unsigned char *p=NULL; + unsigned char *data=NULL; + long len; + int slen; + EVP_PKEY *ret=NULL; + + if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u)) + return NULL; + p = data; + + if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) { + PKCS8_PRIV_KEY_INFO *p8inf; + p8inf=d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len); + if(!p8inf) goto p8err; + ret = EVP_PKCS82PKEY(p8inf); + if(x) { + if(*x) EVP_PKEY_free((EVP_PKEY *)*x); + *x = ret; + } + PKCS8_PRIV_KEY_INFO_free(p8inf); + } else if (strcmp(nm,PEM_STRING_PKCS8) == 0) { + PKCS8_PRIV_KEY_INFO *p8inf; + X509_SIG *p8; + int klen; + char psbuf[PEM_BUFSIZE]; + p8 = d2i_X509_SIG(NULL, &p, len); + if(!p8) goto p8err; + if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u); + else klen=PEM_def_callback(psbuf,PEM_BUFSIZE,0,u); + if (klen <= 0) { + PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, + PEM_R_BAD_PASSWORD_READ); + X509_SIG_free(p8); + goto err; + } + p8inf = PKCS8_decrypt(p8, psbuf, klen); + X509_SIG_free(p8); + if(!p8inf) goto p8err; + ret = EVP_PKCS82PKEY(p8inf); + if(x) { + if(*x) EVP_PKEY_free((EVP_PKEY *)*x); + *x = ret; + } + PKCS8_PRIV_KEY_INFO_free(p8inf); + } else if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0) + { + const EVP_PKEY_ASN1_METHOD *ameth; + ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen); + if (!ameth || !ameth->old_priv_decode) + goto p8err; + ret=d2i_PrivateKey(ameth->pkey_id,x,&p,len); + } +p8err: + if (ret == NULL) + PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY,ERR_R_ASN1_LIB); +err: + OPENSSL_free(nm); + OPENSSL_cleanse(data, len); + OPENSSL_free(data); + return(ret); + } + +int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, + unsigned char *kstr, int klen, + pem_password_cb *cb, void *u) + { + char pem_str[80]; + if (!x->ameth || x->ameth->priv_encode) + return PEM_write_bio_PKCS8PrivateKey(bp, x, enc, + (char *)kstr, klen, + cb, u); + + BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str); + return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey, + pem_str,bp,x,enc,kstr,klen,cb,u); + } + +EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x) + { + char *nm=NULL; + const unsigned char *p=NULL; + unsigned char *data=NULL; + long len; + int slen; + EVP_PKEY *ret=NULL; + + if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_PARAMETERS, + bp, 0, NULL)) + return NULL; + p = data; + + if ((slen = pem_check_suffix(nm, "PARAMETERS")) > 0) + { + ret = EVP_PKEY_new(); + if (!ret) + goto err; + if (!EVP_PKEY_set_type_str(ret, nm, slen) + || !ret->ameth->param_decode + || !ret->ameth->param_decode(ret, &p, len)) + { + EVP_PKEY_free(ret); + ret = NULL; + goto err; + } + if(x) + { + if(*x) EVP_PKEY_free((EVP_PKEY *)*x); + *x = ret; + } + } +err: + if (ret == NULL) + PEMerr(PEM_F_PEM_READ_BIO_PARAMETERS,ERR_R_ASN1_LIB); + OPENSSL_free(nm); + OPENSSL_free(data); + return(ret); + } + +int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x) + { + char pem_str[80]; + if (!x->ameth || !x->ameth->param_encode) + return 0; + + BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str); + return PEM_ASN1_write_bio( + (i2d_of_void *)x->ameth->param_encode, + pem_str,bp,x,NULL,NULL,0,0,NULL); + } + +#ifndef OPENSSL_NO_FP_API +EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u) + { + BIO *b; + EVP_PKEY *ret; + + if ((b=BIO_new(BIO_s_file())) == NULL) + { + PEMerr(PEM_F_PEM_READ_PRIVATEKEY,ERR_R_BUF_LIB); + return(0); + } + BIO_set_fp(b,fp,BIO_NOCLOSE); + ret=PEM_read_bio_PrivateKey(b,x,cb,u); + BIO_free(b); + return(ret); + } + +int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, + unsigned char *kstr, int klen, + pem_password_cb *cb, void *u) + { + BIO *b; + int ret; + + if ((b=BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) + { + PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY,ERR_R_BUF_LIB); + return 0; + } + ret=PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u); + BIO_free(b); + return ret; + } + +#endif |