-/* crypto/evp/p_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 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 "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
+#include "internal/evp_int.h"
int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
- unsigned int siglen, EVP_PKEY *pkey)
- {
- unsigned char m[EVP_MAX_MD_SIZE];
- unsigned int m_len;
- int i,ok=0,v;
- MS_STATIC EVP_MD_CTX tmp_ctx;
+ unsigned int siglen, EVP_PKEY *pkey)
+{
+ unsigned char m[EVP_MAX_MD_SIZE];
+ unsigned int m_len = 0;
+ int i = 0;
+ EVP_PKEY_CTX *pkctx = NULL;
- EVP_MD_CTX_init(&tmp_ctx);
- EVP_MD_CTX_copy_ex(&tmp_ctx,ctx);
- EVP_DigestFinal_ex(&tmp_ctx,&(m[0]),&m_len);
- EVP_MD_CTX_cleanup(&tmp_ctx);
-
- if (ctx->digest->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE)
- {
- EVP_PKEY_CTX *pkctx = NULL;
- i = -1;
- pkctx = EVP_PKEY_CTX_new(pkey, NULL);
- if (!pkctx)
- goto err;
- if (EVP_PKEY_verify_init(pkctx) <= 0)
- goto err;
- if (EVP_PKEY_CTX_set_signature_md(pkctx, ctx->digest) <= 0)
- goto err;
- i = EVP_PKEY_verify(pkctx, sigbuf, siglen, m, m_len);
- err:
- EVP_PKEY_CTX_free(pkctx);
- return i;
- }
-
- for (i=0; i<4; i++)
- {
- v=ctx->digest->required_pkey_type[i];
- if (v == 0) break;
- if (pkey->type == v)
- {
- ok=1;
- break;
- }
- }
- if (!ok)
- {
- EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_WRONG_PUBLIC_KEY_TYPE);
- return(-1);
- }
- if (ctx->digest->verify == NULL)
- {
- EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_NO_VERIFY_FUNCTION_CONFIGURED);
- return(0);
- }
-
- return(ctx->digest->verify(ctx->digest->type,m,m_len,
- sigbuf,siglen,pkey->pkey.ptr));
- }
+ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_FINALISE)) {
+ if (!EVP_DigestFinal_ex(ctx, m, &m_len))
+ goto err;
+ } else {
+ int rv = 0;
+ EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
+ if (tmp_ctx == NULL) {
+ EVPerr(EVP_F_EVP_VERIFYFINAL, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ rv = EVP_MD_CTX_copy_ex(tmp_ctx, ctx);
+ if (rv)
+ rv = EVP_DigestFinal_ex(tmp_ctx, m, &m_len);
+ EVP_MD_CTX_free(tmp_ctx);
+ if (!rv)
+ return 0;
+ }
+ i = -1;
+ pkctx = EVP_PKEY_CTX_new(pkey, NULL);
+ if (pkctx == NULL)
+ goto err;
+ if (EVP_PKEY_verify_init(pkctx) <= 0)
+ goto err;
+ if (EVP_PKEY_CTX_set_signature_md(pkctx, EVP_MD_CTX_md(ctx)) <= 0)
+ goto err;
+ i = EVP_PKEY_verify(pkctx, sigbuf, siglen, m, m_len);
+ err:
+ EVP_PKEY_CTX_free(pkctx);
+ return i;
+}
projects / openssl.git / blobdiff