xref: /openssl/crypto/ec/ecdsa_vrf.c (revision 9311d0c4)
1 /*
2  * Copyright 2002-2020 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 /*
11  * ECDSA low level APIs are deprecated for public use, but still ok for
12  * internal use.
13  */
14 #include "internal/deprecated.h"
15 
16 #include <openssl/ec.h>
17 #include "ec_local.h"
18 #include <openssl/err.h>
19 
20 /*-
21  * returns
22  *      1: correct signature
23  *      0: incorrect signature
24  *     -1: error
25  */
ECDSA_do_verify(const unsigned char * dgst,int dgst_len,const ECDSA_SIG * sig,EC_KEY * eckey)26 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
27                     const ECDSA_SIG *sig, EC_KEY *eckey)
28 {
29     if (eckey->meth->verify_sig != NULL)
30         return eckey->meth->verify_sig(dgst, dgst_len, sig, eckey);
31     ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);
32     return -1;
33 }
34 
35 /*-
36  * returns
37  *      1: correct signature
38  *      0: incorrect signature
39  *     -1: error
40  */
ECDSA_verify(int type,const unsigned char * dgst,int dgst_len,const unsigned char * sigbuf,int sig_len,EC_KEY * eckey)41 int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,
42                  const unsigned char *sigbuf, int sig_len, EC_KEY *eckey)
43 {
44     if (eckey->meth->verify != NULL)
45         return eckey->meth->verify(type, dgst, dgst_len, sigbuf, sig_len,
46                                    eckey);
47     ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);
48     return -1;
49 }
50