/*
- * Written by Dr Stephen N Henson (steve@openssl.org) 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).
+ * 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 <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,
return 1;
}
+#undef PKCS12_key_gen
+/*
+ * |PKCS12_key_gen| is used to convey information about old-style broken
+ * password being used to PKCS12_PBE_keyivgen in decrypt cases. Workflow
+ * is if PKCS12_verify_mac notes that password encoded with compliant
+ * PKCS12_key_gen_utf8 conversion subroutine isn't right, while encoded
+ * with legacy non-compliant one is, then it sets |PKCS12_key_gen| to
+ * legacy PKCS12_key_gen_asc conversion subroutine, which is then picked
+ * by PKCS12_PBE_keyivgen. This applies to reading data. Written data
+ * on the other hand is protected with standard-compliant encoding, i.e.
+ * in backward-incompatible manner. Note that formally the approach is
+ * not MT-safe. Rationale is that in order to access PKCS#12 files from
+ * MT or even production application, you would be required to convert
+ * data to correct interoperable format. In which case this variable
+ * won't have to change. Conversion would have to be done with pkcs12
+ * utility, which is not MT, and hence can tolerate it. In other words
+ * goal is not to make this heuristic approach work in general case,
+ * but in one specific one, apps/pkcs12.c.
+ */
+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) = NULL;
+
+
/* Generate a MAC */
-int PKCS12_gen_mac(PKCS12 *p12, const char *pass, int passlen,
- unsigned char *mac, unsigned int *maclen)
+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;
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;
+ 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);
iter = 1;
else
iter = ASN1_INTEGER_get(p12->mac->iter);
- if ((md_type = EVP_get_digestbyobj(p12->mac->dinfo->algor->algorithm))
- == NULL) {
+ 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;
}
return 0;
}
} else
- if (!PKCS12_key_gen(pass, passlen, salt, saltlen, PKCS12_MAC_ID, iter,
- md_size, key, md_type)) {
+ 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;
}
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)) {
+ 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;
}
- if ((maclen != (unsigned int)p12->mac->dinfo->digest->length)
- || CRYPTO_memcmp(mac, p12->mac->dinfo->digest->data, maclen))
+ X509_SIG_get0(p12->mac->dinfo, NULL, &macoct);
+ if (maclen != (unsigned int)ASN1_STRING_length(macoct))
return 0;
+
+ if (CRYPTO_memcmp(mac, ASN1_STRING_get0_data(macoct), maclen) != 0) {
+ if (pass == NULL)
+ return 0;
+ /*
+ * In order to facilitate accessing old data retry with
+ * old-style broken password ...
+ */
+ if (!pkcs12_gen_mac(p12, pass, passlen, mac, &maclen,
+ PKCS12_key_gen_asc)) {
+ PKCS12err(PKCS12_F_PKCS12_VERIFY_MAC, PKCS12_R_MAC_GENERATION_ERROR);
+ return 0;
+ }
+ if ((maclen != (unsigned int)ASN1_STRING_length(macoct))
+ || CRYPTO_memcmp(mac, ASN1_STRING_get0_data(macoct), maclen) != 0)
+ return 0;
+ else
+ PKCS12_key_gen = PKCS12_key_gen_asc;
+ /*
+ * ... and if suceeded, pass it on to PKCS12_PBE_keyivgen.
+ */
+ }
return 1;
}
{
unsigned char mac[EVP_MAX_MD_SIZE];
unsigned int maclen;
+ ASN1_OCTET_STRING *macoct;
if (!md_type)
md_type = EVP_sha1();
PKCS12err(PKCS12_F_PKCS12_SET_MAC, PKCS12_R_MAC_SETUP_ERROR);
return 0;
}
- if (!PKCS12_gen_mac(p12, pass, passlen, mac, &maclen)) {
+ /*
+ * 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;
}
- if (!(ASN1_OCTET_STRING_set(p12->mac->dinfo->digest, mac, maclen))) {
+ 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;
}
int PKCS12_setup_mac(PKCS12 *p12, int iter, unsigned char *salt, int saltlen,
const EVP_MD *md_type)
{
+ X509_ALGOR *macalg;
+
if ((p12->mac = PKCS12_MAC_DATA_new()) == NULL)
return PKCS12_ERROR;
if (iter > 1) {
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()) == NULL) {
+ 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;
}
- p12->mac->dinfo->algor->parameter->type = V_ASN1_NULL;
return 1;
}
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