providers/common/der/der_ec.c.in

   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/bn.h>
  11 #include <openssl/obj_mac.h>
  12 #include "prov/der_ec.h"
  13
  14 /* Well known OIDs precompiled */
  15 {-
  16     $OUT = oids_to_c::process_leaves('providers/common/der/EC.asn1',
  17                                      { dir => $config{sourcedir},
  18                                        filter => \&oids_to_c::filter_to_C });
  19 -}
  20
  21 int DER_w_algorithmIdentifier_EC(WPACKET *pkt, int cont, EC_KEY *ec)
  22 {
  23     return DER_w_begin_sequence(pkt, cont)
  24         /* No parameters (yet?) */
  25         && DER_w_precompiled(pkt, -1, der_oid_id_ecPublicKey,
  26                              sizeof(der_oid_id_ecPublicKey))
  27         && DER_w_end_sequence(pkt, cont);
  28 }
  29
  30 /* Aliases so we can have a uniform MD_CASE */
  31 #define der_oid_id_ecdsa_with_sha1   der_oid_ecdsa_with_SHA1
  32 #define der_oid_id_ecdsa_with_sha224 der_oid_ecdsa_with_SHA224
  33 #define der_oid_id_ecdsa_with_sha256 der_oid_ecdsa_with_SHA256
  34 #define der_oid_id_ecdsa_with_sha384 der_oid_ecdsa_with_SHA384
  35 #define der_oid_id_ecdsa_with_sha512 der_oid_ecdsa_with_SHA512
  36
  37 #define MD_CASE(name)                                                   \
  38     case NID_##name:                                                    \
  39         precompiled = der_oid_id_ecdsa_with_##name;                     \
  40         precompiled_sz = sizeof(der_oid_id_ecdsa_with_##name);          \
  41         break;
  42
  43 int DER_w_algorithmIdentifier_ECDSA_with(WPACKET *pkt, int cont,
  44                                          EC_KEY *ec, int mdnid)
  45 {
  46     const unsigned char *precompiled = NULL;
  47     size_t precompiled_sz = 0;
  48
  49     switch (mdnid) {
  50         MD_CASE(sha1);
  51         MD_CASE(sha224);
  52         MD_CASE(sha256);
  53         MD_CASE(sha384);
  54         MD_CASE(sha512);
  55         MD_CASE(sha3_224);
  56         MD_CASE(sha3_256);
  57         MD_CASE(sha3_384);
  58         MD_CASE(sha3_512);
  59     default:
  60         return 0;
  61     }
  62
  63     return DER_w_begin_sequence(pkt, cont)
  64         /* No parameters (yet?) */
  65         && DER_w_precompiled(pkt, -1, precompiled, precompiled_sz)
  66         && DER_w_end_sequence(pkt, cont);
  67 }