2 * Copyright (c) 2017 Thomas Pornin <pornin@bolet.org>
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 #define ORDER_LEN ((BR_MAX_EC_SIZE + 7) >> 3)
29 /* see bearssl_ec.h */
31 br_ecdsa_i15_sign_asn1(const br_ec_impl
*impl
,
32 const br_hash_class
*hf
, const void *hash_value
,
33 const br_ec_private_key
*sk
, void *sig
)
35 unsigned char rsig
[(ORDER_LEN
<< 1) + 12];
38 sig_len
= br_ecdsa_i15_sign_raw(impl
, hf
, hash_value
, sk
, rsig
);
42 sig_len
= br_ecdsa_raw_to_asn1(rsig
, sig_len
);
43 memcpy(sig
, rsig
, sig_len
);