1/*
2 * Copyright 2015-2020 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
20ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey)
21{
22    return ECDSA_do_sign_ex(dgst, dlen, NULL, NULL, eckey);
23}
24
25ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dlen,
26                            const BIGNUM *kinv, const BIGNUM *rp,
27                            EC_KEY *eckey)
28{
29    if (eckey->meth->sign_sig != NULL)
30        return eckey->meth->sign_sig(dgst, dlen, kinv, rp, eckey);
31    ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);
32    return NULL;
33}
34
35int ECDSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char
36               *sig, unsigned int *siglen, EC_KEY *eckey)
37{
38    return ECDSA_sign_ex(type, dgst, dlen, sig, siglen, NULL, NULL, eckey);
39}
40
41int ECDSA_sign_ex(int type, const unsigned char *dgst, int dlen,
42                  unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv,
43                  const BIGNUM *r, EC_KEY *eckey)
44{
45    if (eckey->meth->sign != NULL)
46        return eckey->meth->sign(type, dgst, dlen, sig, siglen, kinv, r, eckey);
47    ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);
48    return 0;
49}
50
51int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
52                     BIGNUM **rp)
53{
54    if (eckey->meth->sign_setup != NULL)
55        return eckey->meth->sign_setup(eckey, ctx_in, kinvp, rp);
56    ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);
57    return 0;
58}
59