providers/common/der/der_ec_sig.c

   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 #include <openssl/obj_mac.h>
  11 #include "internal/packet.h"
  12 #include "prov/der_ec.h"
  13
  14 /* Aliases so we can have a uniform MD_CASE */
  15 #define der_oid_id_ecdsa_with_sha1   der_oid_ecdsa_with_SHA1
  16 #define der_oid_id_ecdsa_with_sha224 der_oid_ecdsa_with_SHA224
  17 #define der_oid_id_ecdsa_with_sha256 der_oid_ecdsa_with_SHA256
  18 #define der_oid_id_ecdsa_with_sha384 der_oid_ecdsa_with_SHA384
  19 #define der_oid_id_ecdsa_with_sha512 der_oid_ecdsa_with_SHA512
  20
  21 #define MD_CASE(name)                                                   \
  22     case NID_##name:                                                    \
  23         precompiled = der_oid_id_ecdsa_with_##name;                     \
  24         precompiled_sz = sizeof(der_oid_id_ecdsa_with_##name);          \
  25         break;
  26
  27 int ossl_DER_w_algorithmIdentifier_ECDSA_with_MD(WPACKET *pkt, int cont,
  28                                                  EC_KEY *ec, int mdnid)
  29 {
  30     const unsigned char *precompiled = NULL;
  31     size_t precompiled_sz = 0;
  32
  33     switch (mdnid) {
  34         MD_CASE(sha1);
  35         MD_CASE(sha224);
  36         MD_CASE(sha256);
  37         MD_CASE(sha384);
  38         MD_CASE(sha512);
  39         MD_CASE(sha3_224);
  40         MD_CASE(sha3_256);
  41         MD_CASE(sha3_384);
  42         MD_CASE(sha3_512);
  43     default:
  44         return 0;
  45     }
  46
  47     return ossl_DER_w_begin_sequence(pkt, cont)
  48         /* No parameters (yet?) */
  49         && ossl_DER_w_precompiled(pkt, -1, precompiled, precompiled_sz)
  50         && ossl_DER_w_end_sequence(pkt, cont);
  51 }