crypto/ec/ecdsa_vrf.c

   1 /*
   2  * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <openssl/ec.h>
  11 #include "ec_local.h"
  12 #include <openssl/err.h>
  13
  14 /*-
  15  * returns
  16  *      1: correct signature
  17  *      0: incorrect signature
  18  *     -1: error
  19  */
  20 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
  21                     const ECDSA_SIG *sig, EC_KEY *eckey)
  22 {
  23     if (eckey->meth->verify_sig != NULL)
  24         return eckey->meth->verify_sig(dgst, dgst_len, sig, eckey);
  25     ECerr(EC_F_ECDSA_DO_VERIFY, EC_R_OPERATION_NOT_SUPPORTED);
  26     return 0;
  27 }
  28
  29 /*-
  30  * returns
  31  *      1: correct signature
  32  *      0: incorrect signature
  33  *     -1: error
  34  */
  35 int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,
  36                  const unsigned char *sigbuf, int sig_len, EC_KEY *eckey)
  37 {
  38     if (eckey->meth->verify != NULL)
  39         return eckey->meth->verify(type, dgst, dgst_len, sigbuf, sig_len,
  40                                    eckey);
  41     ECerr(EC_F_ECDSA_VERIFY, EC_R_OPERATION_NOT_SUPPORTED);
  42     return 0;
  43 }