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1 | /* Asymmetric public-key algorithm definitions |
2 | * | |
3 | * See Documentation/crypto/asymmetric-keys.txt | |
4 | * | |
5 | * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. | |
6 | * Written by David Howells (dhowells@redhat.com) | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public Licence | |
10 | * as published by the Free Software Foundation; either version | |
11 | * 2 of the Licence, or (at your option) any later version. | |
12 | */ | |
13 | ||
14 | #ifndef _LINUX_PUBLIC_KEY_H | |
15 | #define _LINUX_PUBLIC_KEY_H | |
16 | ||
a9681bf3 DH |
17 | /* |
18 | * Cryptographic data for the public-key subtype of the asymmetric key type. | |
19 | * | |
20 | * Note that this may include private part of the key as well as the public | |
21 | * part. | |
22 | */ | |
23 | struct public_key { | |
db6c43bd TS |
24 | void *key; |
25 | u32 keylen; | |
4e8ae72a DH |
26 | const char *id_type; |
27 | const char *pkey_algo; | |
a9681bf3 DH |
28 | }; |
29 | ||
3b764563 | 30 | extern void public_key_free(struct public_key *key); |
a9681bf3 DH |
31 | |
32 | /* | |
33 | * Public key cryptography signature data | |
34 | */ | |
35 | struct public_key_signature { | |
a022ec02 | 36 | struct asymmetric_key_id *auth_ids[2]; |
db6c43bd TS |
37 | u8 *s; /* Signature */ |
38 | u32 s_size; /* Number of bytes in signature */ | |
a9681bf3 | 39 | u8 *digest; |
d846e78e | 40 | u8 digest_size; /* Number of bytes in digest */ |
4e8ae72a DH |
41 | const char *pkey_algo; |
42 | const char *hash_algo; | |
a9681bf3 DH |
43 | }; |
44 | ||
3b764563 DH |
45 | extern void public_key_signature_free(struct public_key_signature *sig); |
46 | ||
db6c43bd | 47 | extern struct asymmetric_key_subtype public_key_subtype; |
3b764563 | 48 | |
4ae71c1d | 49 | struct key; |
a511e1af DH |
50 | struct key_type; |
51 | union key_payload; | |
52 | ||
53 | extern int restrict_link_by_signature(struct key *trust_keyring, | |
54 | const struct key_type *type, | |
55 | const union key_payload *payload); | |
56 | ||
4ae71c1d DH |
57 | extern int verify_signature(const struct key *key, |
58 | const struct public_key_signature *sig); | |
59 | ||
db6c43bd TS |
60 | int public_key_verify_signature(const struct public_key *pkey, |
61 | const struct public_key_signature *sig); | |
62 | ||
a9681bf3 | 63 | #endif /* _LINUX_PUBLIC_KEY_H */ |