/* p12_mutl.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 1999.
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 1999.
*/
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
*/
#ifndef OPENSSL_NO_HMAC
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/hmac.h>
-#include <openssl/rand.h>
-#include <openssl/pkcs12.h>
+# 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)
+ 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;
- int md_size;
+ const EVP_MD *md_type;
+ HMAC_CTX hmac;
+ unsigned char key[EVP_MAX_MD_SIZE], *salt;
+ int saltlen, iter;
+ int md_size;
- if (!PKCS7_type_is_data(p12->authsafes))
- {
- PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_CONTENT_TYPE_NOT_DATA);
- return 0;
- }
+ 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;
- }
- md_size = EVP_MD_size(md_type);
- if (md_size < 0)
- return 0;
- 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;
- }
- HMAC_CTX_init(&hmac);
- if (!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_cleanup(&hmac);
- return 0;
- }
- HMAC_CTX_cleanup(&hmac);
- return 1;
+ 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;
+ }
+ md_size = EVP_MD_size(md_type);
+ if (md_size < 0)
+ return 0;
+ 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;
+ }
+ HMAC_CTX_init(&hmac);
+ if (!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_cleanup(&hmac);
+ return 0;
+ }
+ 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;
+ 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 *salt, int saltlen, int iter,
+ const EVP_MD *md_type)
{
- unsigned char mac[EVP_MAX_MD_SIZE];
- unsigned int maclen;
+ 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;
+ 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)
+ 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;
+ 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
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