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-rw-r--r--openssl/crypto/evp/p_verify.c113
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+/* crypto/evp/p_verify.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * 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.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.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;
+
+ 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);
+ }
+
+ EVP_MD_CTX_init(&tmp_ctx);
+ EVP_MD_CTX_copy_ex(&tmp_ctx,ctx);
+ if (ctx->digest->flags & EVP_MD_FLAG_SVCTX)
+ {
+ EVP_MD_SVCTX sctmp;
+ sctmp.mctx = &tmp_ctx;
+ sctmp.key = pkey->pkey.ptr;
+ i = ctx->digest->verify(ctx->digest->type,
+ NULL, -1, sigbuf, siglen, &sctmp);
+ }
+ else
+ {
+ EVP_DigestFinal_ex(&tmp_ctx,&(m[0]),&m_len);
+ i = ctx->digest->verify(ctx->digest->type,m,m_len,
+ sigbuf,siglen,pkey->pkey.ptr);
+ }
+ EVP_MD_CTX_cleanup(&tmp_ctx);
+ return i;
+ }
+