crypto/ec/ecdsa_vrf.c

   1 /*
   2  * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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_lcl.h"
  12 #include <string.h>
  13 #include <openssl/engine.h>
  14 #include <openssl/err.h>
  15
  16 /*-
  17  * returns
  18  *      1: correct signature
  19  *      0: incorrect signature
  20  *     -1: error
  21  */
  22 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
  23                     const ECDSA_SIG *sig, EC_KEY *eckey)
  24 {
  25     if (eckey->meth->verify_sig != NULL)
  26         return eckey->meth->verify_sig(dgst, dgst_len, sig, eckey);
  27     ECerr(EC_F_ECDSA_DO_VERIFY, EC_R_OPERATION_NOT_SUPPORTED);
  28     return 0;
  29 }
  30
  31 /*-
  32  * returns
  33  *      1: correct signature
  34  *      0: incorrect signature
  35  *     -1: error
  36  */
  37 int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,
  38                  const unsigned char *sigbuf, int sig_len, EC_KEY *eckey)
  39 {
  40     if (eckey->meth->verify != NULL)
  41         return eckey->meth->verify(type, dgst, dgst_len, sigbuf, sig_len,
  42                                    eckey);
  43     ECerr(EC_F_ECDSA_VERIFY, EC_R_OPERATION_NOT_SUPPORTED);
  44     return 0;
  45 }