xref: /freebsd/crypto/openssl/providers/common/der/der_dsa_sig.c (revision 7ef62cebc2f965b0f640263e179276928885e33d)
1 /*
2  * Copyright 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  * DSA 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/obj_mac.h>
17 #include "internal/packet.h"
18 #include "prov/der_dsa.h"
19 
20 #define MD_CASE(name)                                                   \
21     case NID_##name:                                                    \
22         precompiled = ossl_der_oid_id_dsa_with_##name;                  \
23         precompiled_sz = sizeof(ossl_der_oid_id_dsa_with_##name);       \
24         break;
25 
26 int ossl_DER_w_algorithmIdentifier_DSA_with_MD(WPACKET *pkt, int tag,
27                                                DSA *dsa, int mdnid)
28 {
29     const unsigned char *precompiled = NULL;
30     size_t precompiled_sz = 0;
31 
32     switch (mdnid) {
33         MD_CASE(sha1);
34         MD_CASE(sha224);
35         MD_CASE(sha256);
36         MD_CASE(sha384);
37         MD_CASE(sha512);
38         MD_CASE(sha3_224);
39         MD_CASE(sha3_256);
40         MD_CASE(sha3_384);
41         MD_CASE(sha3_512);
42     default:
43         return 0;
44     }
45 
46     return ossl_DER_w_begin_sequence(pkt, tag)
47         /* No parameters (yet?) */
48         && ossl_DER_w_precompiled(pkt, -1, precompiled, precompiled_sz)
49         && ossl_DER_w_end_sequence(pkt, tag);
50 }
51