1 /*
2 Copyright (c) 2021 Fraunhofer AISEC. See the COPYRIGHT
3 file at the top-level directory of this distribution.
4
5 Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 option. This file may not be copied, modified, or distributed
9 except according to those terms.
10 */
11
12 #include <stdint.h>
13
14 #include "edhoc/retrieve_cred.h"
15 #include "edhoc/signature_or_mac_msg.h"
16 #include "edhoc/plaintext.h"
17 #include "edhoc/bstr_encode_decode.h"
18
19 #include "common/oscore_edhoc_error.h"
20 #include "common/memcpy_s.h"
21 #include "common/print_util.h"
22
23 #include "cbor/edhoc_decode_id_cred_x.h"
24 #include "cbor/edhoc_encode_int_type.h"
25
id_cred2kid(const struct byte_array * id_cred,struct byte_array * kid)26 enum err id_cred2kid(const struct byte_array *id_cred, struct byte_array *kid)
27 {
28 struct id_cred_x_map map = { 0 };
29 size_t payload_len_out;
30 size_t decode_len = 0;
31 TRY_EXPECT(cbor_decode_id_cred_x_map(id_cred->ptr, id_cred->len, &map,
32 &decode_len),
33 0);
34
35 if (map.id_cred_x_map_kid_present) {
36 TRY_EXPECT(
37 cbor_encode_int_type_i(
38 kid->ptr, kid->len,
39 &map.id_cred_x_map_kid.id_cred_x_map_kid_int,
40 &payload_len_out),
41 ZCBOR_SUCCESS);
42 kid->len = (uint32_t)payload_len_out;
43 } else {
44 kid->len = 0;
45 }
46
47 return ok;
48 }
49
