more const

[openssl.git] / crypto / ecdsa / ecs_vrf.c

diff --git a/crypto/ecdsa/ecs_vrf.c b/crypto/ecdsa/ecs_vrf.c
index dddbcfc60c5ee06a503a1f3f3c3c89ad126fc24d..465b6025fbad05fdd3cb14b3706649902255825f 100644 (file)
--- a/crypto/ecdsa/ecs_vrf.c
+++ b/crypto/ecdsa/ecs_vrf.c
@@ -1,4 +1,7 @@
 /* crypto/ecdsa/ecdsa_vrf.c */
+/*
+ * Written by Nils Larsch for the OpenSSL project
+ */
 /* ====================================================================
  * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
  *
@@ -52,73 +55,24 @@
  * Hudson (tjh@cryptsoft.com).
  *
  */
-/* 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 <openssl/ecdsa.h>
+
+#include "ecdsa.h"
+#ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
+#endif
 
 /* returns
  *      1: correct signature
  *      0: incorrect signature
  *     -1: error
  */
-int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, ECDSA_SIG *sig, ECDSA *ecdsa)
+int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, 
+               const ECDSA_SIG *sig, EC_KEY *eckey)
        {
-       return ecdsa->meth->ecdsa_do_verify(dgst, dgst_len, sig, ecdsa);
+       ECDSA_DATA *ecdsa = ecdsa_check(eckey);
+       if (ecdsa == NULL)
+               return 0;
+       return ecdsa->meth->ecdsa_do_verify(dgst, dgst_len, sig, eckey);
        }
 
 /* returns
@@ -126,15 +80,16 @@ int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, ECDSA_SIG *sig, ECD
  *      0: incorrect signature
  *     -1: error
  */
-int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len, const unsigned char *sigbuf, int sig_len, ECDSA *ecdsa)
+int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,
+               const unsigned char *sigbuf, int sig_len, EC_KEY *eckey)
        {
        ECDSA_SIG *s;
        int ret=-1;
 
        s = ECDSA_SIG_new();
        if (s == NULL) return(ret);
-       if (d2i_ECDSA_SIG(&s,&sigbuf,sig_len) == NULL) goto err;
-       ret=ECDSA_do_verify(dgst,dgst_len,s,ecdsa);
+       if (d2i_ECDSA_SIG(&s, &sigbuf, sig_len) == NULL) goto err;
+       ret=ECDSA_do_verify(dgst, dgst_len, s, eckey);
 err:
        ECDSA_SIG_free(s);
        return(ret);