1/*
2 * Copyright (C) 2011 Nokia Corporation
3 * Copyright (C) 2011 Intel Corporation
4 *
5 * Author:
6 * Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
7 * <dmitry.kasatkin@intel.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, version 2 of the License.
12 *
13 */
14
15#ifndef _DIGSIG_H
16#define _DIGSIG_H
17
18#include <linux/key.h>
19
20enum pubkey_algo {
21 PUBKEY_ALGO_RSA,
22 PUBKEY_ALGO_MAX,
23};
24
25enum digest_algo {
26 DIGEST_ALGO_SHA1,
27 DIGEST_ALGO_SHA256,
28 DIGEST_ALGO_MAX
29};
30
31struct pubkey_hdr {
32 uint8_t version; /* key format version */
33 uint32_t timestamp; /* key made, always 0 for now */
34 uint8_t algo;
35 uint8_t nmpi;
36 char mpi[0];
37} __packed;
38
39struct signature_hdr {
40 uint8_t version; /* signature format version */
41 uint32_t timestamp; /* signature made */
42 uint8_t algo;
43 uint8_t hash;
44 uint8_t keyid[8];
45 uint8_t nmpi;
46 char mpi[0];
47} __packed;
48
49#if defined(CONFIG_SIGNATURE) || defined(CONFIG_SIGNATURE_MODULE)
50
51int digsig_verify(struct key *keyring, const char *sig, int siglen,
52 const char *digest, int digestlen);
53
54#else
55
56static inline int digsig_verify(struct key *keyring, const char *sig,
57 int siglen, const char *digest, int digestlen)
58{
59 return -EOPNOTSUPP;
60}
61
62#endif /* CONFIG_SIGNATURE */
63
64#endif /* _DIGSIG_H */
65