diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/pkcs12/p12_mutl.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/pkcs12/p12_mutl.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/pkcs12/p12_mutl.c b/openssl-1.1.0h/crypto/pkcs12/p12_mutl.c new file mode 100644 index 0000000..a9e2202 --- /dev/null +++ b/openssl-1.1.0h/crypto/pkcs12/p12_mutl.c @@ -0,0 +1,242 @@ +/* + * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +# include <stdio.h> +# include "internal/cryptlib.h" +# include <openssl/crypto.h> +# include <openssl/hmac.h> +# include <openssl/rand.h> +# include <openssl/pkcs12.h> +# include "p12_lcl.h" + +int PKCS12_mac_present(const PKCS12 *p12) +{ + return p12->mac ? 1 : 0; +} + +void PKCS12_get0_mac(const ASN1_OCTET_STRING **pmac, + const X509_ALGOR **pmacalg, + const ASN1_OCTET_STRING **psalt, + const ASN1_INTEGER **piter, + const PKCS12 *p12) +{ + if (p12->mac) { + X509_SIG_get0(p12->mac->dinfo, pmacalg, pmac); + if (psalt) + *psalt = p12->mac->salt; + if (piter) + *piter = p12->mac->iter; + } else { + if (pmac) + *pmac = NULL; + if (pmacalg) + *pmacalg = NULL; + if (psalt) + *psalt = NULL; + if (piter) + *piter = NULL; + } +} + +# define TK26_MAC_KEY_LEN 32 + +static int pkcs12_gen_gost_mac_key(const char *pass, int passlen, + const unsigned char *salt, int saltlen, + int iter, int keylen, unsigned char *key, + const EVP_MD *digest) +{ + unsigned char out[96]; + + if (keylen != TK26_MAC_KEY_LEN) { + return 0; + } + + if (!PKCS5_PBKDF2_HMAC(pass, passlen, salt, saltlen, iter, + digest, sizeof(out), out)) { + return 0; + } + memcpy(key, out + sizeof(out) - TK26_MAC_KEY_LEN, TK26_MAC_KEY_LEN); + OPENSSL_cleanse(out, sizeof(out)); + return 1; +} + +/* Generate a MAC */ +static int pkcs12_gen_mac(PKCS12 *p12, const char *pass, int passlen, + unsigned char *mac, unsigned int *maclen, + int (*pkcs12_key_gen)(const char *pass, int passlen, + unsigned char *salt, int slen, + int id, int iter, int n, + unsigned char *out, + const EVP_MD *md_type)) +{ + const EVP_MD *md_type; + HMAC_CTX *hmac = NULL; + unsigned char key[EVP_MAX_MD_SIZE], *salt; + int saltlen, iter; + int md_size = 0; + int md_type_nid; + const X509_ALGOR *macalg; + const ASN1_OBJECT *macoid; + + if (pkcs12_key_gen == NULL) + pkcs12_key_gen = PKCS12_key_gen_utf8; + + 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); + X509_SIG_get0(p12->mac->dinfo, &macalg, NULL); + X509_ALGOR_get0(&macoid, NULL, NULL, macalg); + if ((md_type = EVP_get_digestbyobj(macoid)) == NULL) { + PKCS12err(PKCS12_F_PKCS12_GEN_MAC, PKCS12_R_UNKNOWN_DIGEST_ALGORITHM); + return 0; + } + md_size = EVP_MD_size(md_type); + md_type_nid = EVP_MD_type(md_type); + if (md_size < 0) + return 0; + if ((md_type_nid == NID_id_GostR3411_94 + || md_type_nid == NID_id_GostR3411_2012_256 + || md_type_nid == NID_id_GostR3411_2012_512) + && !getenv("LEGACY_GOST_PKCS12")) { + md_size = TK26_MAC_KEY_LEN; + if (!pkcs12_gen_gost_mac_key(pass, passlen, salt, saltlen, iter, + md_size, key, md_type)) { + PKCS12err(PKCS12_F_PKCS12_GEN_MAC, PKCS12_R_KEY_GEN_ERROR); + return 0; + } + } else + if (!(*pkcs12_key_gen)(pass, passlen, salt, saltlen, PKCS12_MAC_ID, + iter, md_size, key, md_type)) { + PKCS12err(PKCS12_F_PKCS12_GEN_MAC, PKCS12_R_KEY_GEN_ERROR); + return 0; + } + if ((hmac = HMAC_CTX_new()) == NULL + || !HMAC_Init_ex(hmac, key, md_size, md_type, NULL) + || !HMAC_Update(hmac, p12->authsafes->d.data->data, + p12->authsafes->d.data->length) + || !HMAC_Final(hmac, mac, maclen)) { + HMAC_CTX_free(hmac); + return 0; + } + HMAC_CTX_free(hmac); + return 1; +} + +int PKCS12_gen_mac(PKCS12 *p12, const char *pass, int passlen, + unsigned char *mac, unsigned int *maclen) +{ + return pkcs12_gen_mac(p12, pass, passlen, mac, maclen, NULL); +} + +/* Verify the mac */ +int PKCS12_verify_mac(PKCS12 *p12, const char *pass, int passlen) +{ + unsigned char mac[EVP_MAX_MD_SIZE]; + unsigned int maclen; + const ASN1_OCTET_STRING *macoct; + + 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, + PKCS12_key_gen_utf8)) { + PKCS12err(PKCS12_F_PKCS12_VERIFY_MAC, PKCS12_R_MAC_GENERATION_ERROR); + return 0; + } + X509_SIG_get0(p12->mac->dinfo, NULL, &macoct); + if ((maclen != (unsigned int)ASN1_STRING_length(macoct)) + || CRYPTO_memcmp(mac, ASN1_STRING_get0_data(macoct), maclen) != 0) + 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; + ASN1_OCTET_STRING *macoct; + + 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; + } + /* + * Note that output mac is forced to UTF-8... + */ + if (!pkcs12_gen_mac(p12, pass, passlen, mac, &maclen, + PKCS12_key_gen_utf8)) { + PKCS12err(PKCS12_F_PKCS12_SET_MAC, PKCS12_R_MAC_GENERATION_ERROR); + return 0; + } + X509_SIG_getm(p12->mac->dinfo, NULL, &macoct); + if (!ASN1_OCTET_STRING_set(macoct, 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) +{ + X509_ALGOR *macalg; + + PKCS12_MAC_DATA_free(p12->mac); + p12->mac = NULL; + + if ((p12->mac = PKCS12_MAC_DATA_new()) == NULL) + return PKCS12_ERROR; + if (iter > 1) { + if ((p12->mac->iter = ASN1_INTEGER_new()) == NULL) { + 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; + if ((p12->mac->salt->data = OPENSSL_malloc(saltlen)) == NULL) { + PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); + return 0; + } + p12->mac->salt->length = saltlen; + if (!salt) { + if (RAND_bytes(p12->mac->salt->data, saltlen) <= 0) + return 0; + } else + memcpy(p12->mac->salt->data, salt, saltlen); + X509_SIG_getm(p12->mac->dinfo, &macalg, NULL); + if (!X509_ALGOR_set0(macalg, OBJ_nid2obj(EVP_MD_type(md_type)), + V_ASN1_NULL, NULL)) { + PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); + return 0; + } + + return 1; +} |