diff options
Diffstat (limited to 'crypto/pkcs12/p12_mutl.c')
| -rw-r--r-- | crypto/pkcs12/p12_mutl.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/crypto/pkcs12/p12_mutl.c b/crypto/pkcs12/p12_mutl.c new file mode 100644 index 000000000000..c408cc8ab8df --- /dev/null +++ b/crypto/pkcs12/p12_mutl.c @@ -0,0 +1,182 @@ +/* p12_mutl.c */ +/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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). + * + */ + +#ifndef OPENSSL_NO_HMAC +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/hmac.h> +#include <openssl/rand.h> +#include <openssl/pkcs12.h> + +/* Generate a MAC */ +int PKCS12_gen_mac(PKCS12 *p12, const char *pass, int passlen, + unsigned char *mac, unsigned int *maclen) +{ + const EVP_MD *md_type; + HMAC_CTX hmac; + unsigned char key[EVP_MAX_MD_SIZE], *salt; + int saltlen, iter; + + if (!PKCS7_type_is_data(p12->authsafes)) + { + PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_CONTENT_TYPE_NOT_DATA); + return 0; + } + + salt = p12->mac->salt->data; + saltlen = p12->mac->salt->length; + if (!p12->mac->iter) iter = 1; + else iter = ASN1_INTEGER_get (p12->mac->iter); + if(!(md_type = + EVP_get_digestbyobj (p12->mac->dinfo->algor->algorithm))) { + PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_UNKNOWN_DIGEST_ALGORITHM); + return 0; + } + if(!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_MAC_ID, iter, + EVP_MD_size(md_type), key, md_type)) { + PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_KEY_GEN_ERROR); + return 0; + } + HMAC_CTX_init(&hmac); + HMAC_Init_ex(&hmac, key, EVP_MD_size(md_type), md_type, NULL); + HMAC_Update(&hmac, p12->authsafes->d.data->data, + p12->authsafes->d.data->length); + HMAC_Final(&hmac, mac, maclen); + HMAC_CTX_cleanup(&hmac); + return 1; +} + +/* Verify the mac */ +int PKCS12_verify_mac(PKCS12 *p12, const char *pass, int passlen) +{ + unsigned char mac[EVP_MAX_MD_SIZE]; + unsigned int maclen; + if(p12->mac == NULL) { + PKCS12err(PKCS12_F_PKCS12_VERIFY_MAC,PKCS12_R_MAC_ABSENT); + return 0; + } + if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) { + PKCS12err(PKCS12_F_PKCS12_VERIFY_MAC,PKCS12_R_MAC_GENERATION_ERROR); + return 0; + } + if ((maclen != (unsigned int)p12->mac->dinfo->digest->length) + || memcmp (mac, p12->mac->dinfo->digest->data, maclen)) return 0; + return 1; +} + +/* Set a mac */ + +int PKCS12_set_mac(PKCS12 *p12, const char *pass, int passlen, + unsigned char *salt, int saltlen, int iter, const EVP_MD *md_type) +{ + unsigned char mac[EVP_MAX_MD_SIZE]; + unsigned int maclen; + + if (!md_type) md_type = EVP_sha1(); + if (PKCS12_setup_mac (p12, iter, salt, saltlen, md_type) == + PKCS12_ERROR) { + PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_SETUP_ERROR); + return 0; + } + if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) { + PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_GENERATION_ERROR); + return 0; + } + if (!(M_ASN1_OCTET_STRING_set (p12->mac->dinfo->digest, mac, maclen))) { + PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_STRING_SET_ERROR); + return 0; + } + return 1; +} + +/* Set up a mac structure */ +int PKCS12_setup_mac(PKCS12 *p12, int iter, unsigned char *salt, int saltlen, + const EVP_MD *md_type) +{ + if (!(p12->mac = PKCS12_MAC_DATA_new())) return PKCS12_ERROR; + if (iter > 1) { + if(!(p12->mac->iter = M_ASN1_INTEGER_new())) { + PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); + return 0; + } + if (!ASN1_INTEGER_set(p12->mac->iter, iter)) { + PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); + return 0; + } + } + if (!saltlen) saltlen = PKCS12_SALT_LEN; + p12->mac->salt->length = saltlen; + if (!(p12->mac->salt->data = OPENSSL_malloc (saltlen))) { + PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); + return 0; + } + if (!salt) { + if (RAND_pseudo_bytes (p12->mac->salt->data, saltlen) < 0) + return 0; + } + else memcpy (p12->mac->salt->data, salt, saltlen); + p12->mac->dinfo->algor->algorithm = OBJ_nid2obj(EVP_MD_type(md_type)); + if (!(p12->mac->dinfo->algor->parameter = ASN1_TYPE_new())) { + PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); + return 0; + } + p12->mac->dinfo->algor->parameter->type = V_ASN1_NULL; + + return 1; +} +#endif |