1
2
3
4
5
6
7
8
9
10
11#ifndef _DIGSIG_H
12#define _DIGSIG_H
13
14#include <linux/key.h>
15
16enum pubkey_algo {
17 PUBKEY_ALGO_RSA,
18 PUBKEY_ALGO_MAX,
19};
20
21enum digest_algo {
22 DIGEST_ALGO_SHA1,
23 DIGEST_ALGO_SHA256,
24 DIGEST_ALGO_MAX
25};
26
27struct pubkey_hdr {
28 uint8_t version;
29 uint32_t timestamp;
30 uint8_t algo;
31 uint8_t nmpi;
32 char mpi[];
33} __packed;
34
35struct signature_hdr {
36 uint8_t version;
37 uint32_t timestamp;
38 uint8_t algo;
39 uint8_t hash;
40 uint8_t keyid[8];
41 uint8_t nmpi;
42 char mpi[];
43} __packed;
44
45#if defined(CONFIG_SIGNATURE) || defined(CONFIG_SIGNATURE_MODULE)
46
47int digsig_verify(struct key *keyring, const char *sig, int siglen,
48 const char *digest, int digestlen);
49
50#else
51
52static inline int digsig_verify(struct key *keyring, const char *sig,
53 int siglen, const char *digest, int digestlen)
54{
55 return -EOPNOTSUPP;
56}
57
58#endif
59
60#endif
61