1 /*
2 * Copyright 2025 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 "internal/packet.h"
17 #include "prov/der_ml_dsa.h"
18
ossl_DER_w_algorithmIdentifier_ML_DSA(WPACKET * pkt,int tag,ML_DSA_KEY * key)19 int ossl_DER_w_algorithmIdentifier_ML_DSA(WPACKET *pkt, int tag, ML_DSA_KEY *key)
20 {
21 const uint8_t *alg;
22 size_t len;
23 const char *name = ossl_ml_dsa_key_get_name(key);
24
25 if (OPENSSL_strcasecmp(name, "ML-DSA-44") == 0) {
26 alg = ossl_der_oid_id_ml_dsa_44;
27 len = sizeof(ossl_der_oid_id_ml_dsa_44);
28 } else if (OPENSSL_strcasecmp(name, "ML-DSA-65") == 0) {
29 alg = ossl_der_oid_id_ml_dsa_65;
30 len = sizeof(ossl_der_oid_id_ml_dsa_65);
31 } else if (OPENSSL_strcasecmp(name, "ML-DSA-87") == 0) {
32 alg = ossl_der_oid_id_ml_dsa_87;
33 len = sizeof(ossl_der_oid_id_ml_dsa_87);
34 } else {
35 return 0;
36 }
37 return ossl_DER_w_begin_sequence(pkt, tag)
38 /* No parameters */
39 && ossl_DER_w_precompiled(pkt, -1, alg, len)
40 && ossl_DER_w_end_sequence(pkt, tag);
41 }
42