1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2011 Nokia Corporation
4*4882a593Smuzhiyun * Copyright (C) 2011 Intel Corporation
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Author:
7*4882a593Smuzhiyun * Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
8*4882a593Smuzhiyun * <dmitry.kasatkin@intel.com>
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #ifndef _DIGSIG_H
12*4882a593Smuzhiyun #define _DIGSIG_H
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include <linux/key.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun enum pubkey_algo {
17*4882a593Smuzhiyun PUBKEY_ALGO_RSA,
18*4882a593Smuzhiyun PUBKEY_ALGO_MAX,
19*4882a593Smuzhiyun };
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun enum digest_algo {
22*4882a593Smuzhiyun DIGEST_ALGO_SHA1,
23*4882a593Smuzhiyun DIGEST_ALGO_SHA256,
24*4882a593Smuzhiyun DIGEST_ALGO_MAX
25*4882a593Smuzhiyun };
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun struct pubkey_hdr {
28*4882a593Smuzhiyun uint8_t version; /* key format version */
29*4882a593Smuzhiyun uint32_t timestamp; /* key made, always 0 for now */
30*4882a593Smuzhiyun uint8_t algo;
31*4882a593Smuzhiyun uint8_t nmpi;
32*4882a593Smuzhiyun char mpi[];
33*4882a593Smuzhiyun } __packed;
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun struct signature_hdr {
36*4882a593Smuzhiyun uint8_t version; /* signature format version */
37*4882a593Smuzhiyun uint32_t timestamp; /* signature made */
38*4882a593Smuzhiyun uint8_t algo;
39*4882a593Smuzhiyun uint8_t hash;
40*4882a593Smuzhiyun uint8_t keyid[8];
41*4882a593Smuzhiyun uint8_t nmpi;
42*4882a593Smuzhiyun char mpi[];
43*4882a593Smuzhiyun } __packed;
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun #if defined(CONFIG_SIGNATURE) || defined(CONFIG_SIGNATURE_MODULE)
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun int digsig_verify(struct key *keyring, const char *sig, int siglen,
48*4882a593Smuzhiyun const char *digest, int digestlen);
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun #else
51*4882a593Smuzhiyun
digsig_verify(struct key * keyring,const char * sig,int siglen,const char * digest,int digestlen)52*4882a593Smuzhiyun static inline int digsig_verify(struct key *keyring, const char *sig,
53*4882a593Smuzhiyun int siglen, const char *digest, int digestlen)
54*4882a593Smuzhiyun {
55*4882a593Smuzhiyun return -EOPNOTSUPP;
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun #endif /* CONFIG_SIGNATURE */
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun #endif /* _DIGSIG_H */
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