1/*
2 * Copyright 2020-2021 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#include <openssl/obj_mac.h>
11#include "internal/packet.h"
12#include "prov/der_sm2.h"
13
14/* Aliases so we can have a uniform MD_CASE */
15#define ossl_der_oid_id_sm2_with_sm3   ossl_der_oid_sm2_with_SM3
16
17#define MD_CASE(name)                                                   \
18    case NID_##name:                                                    \
19        precompiled = ossl_der_oid_id_sm2_with_##name;                  \
20        precompiled_sz = sizeof(ossl_der_oid_id_sm2_with_##name);       \
21        break;
22
23int ossl_DER_w_algorithmIdentifier_SM2_with_MD(WPACKET *pkt, int cont,
24                                               EC_KEY *ec, int mdnid)
25{
26    const unsigned char *precompiled = NULL;
27    size_t precompiled_sz = 0;
28
29    switch (mdnid) {
30        MD_CASE(sm3);
31    default:
32        return 0;
33    }
34
35    return ossl_DER_w_begin_sequence(pkt, cont)
36        /* No parameters (yet?) */
37        && ossl_DER_w_precompiled(pkt, -1, precompiled, precompiled_sz)
38        && ossl_DER_w_end_sequence(pkt, cont);
39}
40