-/* crypto/asn1/a_verify.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. 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.]
+ * Licensed under the Apache License 2.0 (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 <time.h>
+#include <sys/types.h>
#include "internal/cryptlib.h"
-#ifndef NO_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-
#include <openssl/bn.h>
#include <openssl/x509.h>
#include <openssl/objects.h>
#include <openssl/buffer.h>
#include <openssl/evp.h>
-#include "internal/asn1_int.h"
+#include "crypto/asn1.h"
+#include "crypto/evp.h"
#ifndef NO_ASN1_OLD
int ASN1_verify(i2d_of_void *i2d, X509_ALGOR *a, ASN1_BIT_STRING *signature,
char *data, EVP_PKEY *pkey)
{
- EVP_MD_CTX *ctx = EVP_MD_CTX_create();
+ EVP_MD_CTX *ctx = EVP_MD_CTX_new();
const EVP_MD *type;
unsigned char *p, *buf_in = NULL;
int ret = -1, i, inl;
}
inl = i2d(data, NULL);
+ if (inl <= 0) {
+ ASN1err(ASN1_F_ASN1_VERIFY, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
buf_in = OPENSSL_malloc((unsigned int)inl);
if (buf_in == NULL) {
ASN1err(ASN1_F_ASN1_VERIFY, ERR_R_MALLOC_FAILURE);
}
ret = 1;
err:
- EVP_MD_CTX_destroy(ctx);
- return (ret);
+ EVP_MD_CTX_free(ctx);
+ return ret;
}
#endif
int ASN1_item_verify(const ASN1_ITEM *it, X509_ALGOR *a,
ASN1_BIT_STRING *signature, void *asn, EVP_PKEY *pkey)
{
- EVP_MD_CTX *ctx = NULL;
- unsigned char *buf_in = NULL;
- int ret = -1, inl;
+ int rv = -1;
+ EVP_MD_CTX *ctx = EVP_MD_CTX_new();
+ EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new(pkey, NULL);
+ if (ctx == NULL || pctx == NULL) {
+ ASN1err(0, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ EVP_MD_CTX_set_pkey_ctx(ctx, pctx);
+
+ rv = ASN1_item_verify_ctx(it, a, signature, asn, ctx);
+
+ err:
+ EVP_PKEY_CTX_free(pctx);
+ EVP_MD_CTX_free(ctx);
+ return rv;
+}
+
+int ASN1_item_verify_ctx(const ASN1_ITEM *it, X509_ALGOR *a,
+ ASN1_BIT_STRING *signature, void *asn,
+ EVP_MD_CTX *ctx)
+{
+ EVP_PKEY *pkey;
+ unsigned char *buf_in = NULL;
+ int ret = -1, inl = 0;
int mdnid, pknid;
+ size_t inll = 0;
+
+ pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx));
- if (!pkey) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_PASSED_NULL_PARAMETER);
+ if (pkey == NULL) {
+ ASN1err(0, ERR_R_PASSED_NULL_PARAMETER);
return -1;
}
if (signature->type == V_ASN1_BIT_STRING && signature->flags & 0x7) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ASN1_R_INVALID_BIT_STRING_BITS_LEFT);
+ ASN1err(0, ASN1_R_INVALID_BIT_STRING_BITS_LEFT);
return -1;
}
- ctx = EVP_MD_CTX_create();
- if (ctx == NULL) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
/* Convert signature OID into digest and public key OIDs */
if (!OBJ_find_sigid_algs(OBJ_obj2nid(a->algorithm), &mdnid, &pknid)) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
+ ASN1err(0, ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
goto err;
}
+
if (mdnid == NID_undef) {
- if (!pkey->ameth || !pkey->ameth->item_verify) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY,
- ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
+ if (pkey->ameth == NULL || pkey->ameth->item_verify == NULL) {
+ ASN1err(0, ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
goto err;
}
ret = pkey->ameth->item_verify(ctx, it, asn, a, signature, pkey);
/*
- * Return value of 2 means carry on, anything else means we exit
- * straight away: either a fatal error of the underlying verification
- * routine handles all verification.
+ * Return values meaning:
+ * <=0: error.
+ * 1: method does everything.
+ * 2: carry on as normal, method has called EVP_DigestVerifyInit()
*/
- if (ret != 2)
+ if (ret <= 0)
+ ASN1err(0, ERR_R_EVP_LIB);
+ if (ret <= 1)
goto err;
- ret = -1;
} else {
- const EVP_MD *type;
- type = EVP_get_digestbynid(mdnid);
+ const EVP_MD *type = EVP_get_digestbynid(mdnid);
+
if (type == NULL) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY,
- ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
+ ASN1err(0, ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
goto err;
}
/* Check public key OID matches public key type */
if (EVP_PKEY_type(pknid) != pkey->ameth->pkey_id) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ASN1_R_WRONG_PUBLIC_KEY_TYPE);
+ ASN1err(0, ASN1_R_WRONG_PUBLIC_KEY_TYPE);
goto err;
}
if (!EVP_DigestVerifyInit(ctx, NULL, type, NULL, pkey)) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_EVP_LIB);
+ ASN1err(0, ERR_R_EVP_LIB);
ret = 0;
goto err;
}
-
}
inl = ASN1_item_i2d(asn, &buf_in, it);
-
- if (buf_in == NULL) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_MALLOC_FAILURE);
+ if (inl <= 0) {
+ ASN1err(0, ERR_R_INTERNAL_ERROR);
goto err;
}
-
- ret = EVP_DigestVerifyUpdate(ctx, buf_in, inl);
-
- OPENSSL_clear_free(buf_in, (unsigned int)inl);
-
- if (!ret) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_EVP_LIB);
+ if (buf_in == NULL) {
+ ASN1err(0, ERR_R_MALLOC_FAILURE);
goto err;
}
- ret = -1;
+ inll = inl;
- if (EVP_DigestVerifyFinal(ctx, signature->data,
- (size_t)signature->length) <= 0) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_EVP_LIB);
- ret = 0;
+ ret = EVP_DigestVerify(ctx, signature->data, (size_t)signature->length,
+ buf_in, inl);
+ if (ret <= 0) {
+ ASN1err(0, ERR_R_EVP_LIB);
goto err;
}
ret = 1;
err:
- EVP_MD_CTX_destroy(ctx);
- return (ret);
+ OPENSSL_clear_free(buf_in, inll);
+ return ret;
}
projects / thirdparty / openssl.git / blobdiff