blob: 6a053611e16a7e38cbc8f62b23d9ff4cff23496a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* DSA low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include <openssl/core_names.h>
#include "crypto/dsa.h"
/*
* The intention with the "backend" source file is to offer backend support
* for legacy backends (EVP_PKEY_ASN1_METHOD and EVP_PKEY_METHOD) and provider
* implementations alike.
*/
int dsa_key_fromdata(DSA *dsa, const OSSL_PARAM params[])
{
const OSSL_PARAM *param_priv_key, *param_pub_key;
BIGNUM *priv_key = NULL, *pub_key = NULL;
if (dsa == NULL)
return 0;
param_priv_key =
OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY);
param_pub_key =
OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY);
/* It's ok if neither half is present */
if (param_priv_key == NULL && param_pub_key == NULL)
return 1;
if (param_pub_key != NULL && !OSSL_PARAM_get_BN(param_pub_key, &pub_key))
goto err;
if (param_priv_key != NULL && !OSSL_PARAM_get_BN(param_priv_key, &priv_key))
goto err;
if (!DSA_set0_key(dsa, pub_key, priv_key))
goto err;
return 1;
err:
BN_clear_free(priv_key);
BN_free(pub_key);
return 0;
}
|
