projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| a9681bf3 DH |
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 | ||
| 5a307718 DH |
17 | #include <linux/keyctl.h> |
| 18 | ||
| a9681bf3 DH |
19 | /* |
| 20 | * Cryptographic data for the public-key subtype of the asymmetric key type. | |
| 21 | * | |
| 22 | * Note that this may include private part of the key as well as the public | |
| 23 | * part. | |
| 24 | */ | |
| 25 | struct public_key { | |
| db6c43bd TS |
26 | void *key; |
| 27 | u32 keylen; | |
| f7c4e06e | 28 | bool key_is_private; |
| 4e8ae72a DH |
29 | const char *id_type; |
| 30 | const char *pkey_algo; | |
| a9681bf3 DH |
31 | }; |
| 32 | ||
| 3b764563 | 33 | extern void public_key_free(struct public_key *key); |
| a9681bf3 DH |
34 | |
| 35 | /* | |
| 36 | * Public key cryptography signature data | |
| 37 | */ | |
| 38 | struct public_key_signature { | |
| a022ec02 | 39 | struct asymmetric_key_id *auth_ids[2]; |
| db6c43bd TS |
40 | u8 *s; /* Signature */ |
| 41 | u32 s_size; /* Number of bytes in signature */ | |
| a9681bf3 | 42 | u8 *digest; |
| d846e78e | 43 | u8 digest_size; /* Number of bytes in digest */ |
| 4e8ae72a DH |
44 | const char *pkey_algo; |
| 45 | const char *hash_algo; | |
| 5a307718 | 46 | const char *encoding; |
| a9681bf3 DH |
47 | }; |
| 48 | ||
| 3b764563 DH |
49 | extern void public_key_signature_free(struct public_key_signature *sig); |
| 50 | ||
| db6c43bd | 51 | extern struct asymmetric_key_subtype public_key_subtype; |
| 3b764563 | 52 | |
| 4ae71c1d | 53 | struct key; |
| a511e1af DH |
54 | struct key_type; |
| 55 | union key_payload; | |
| 56 | ||
| aaf66c88 | 57 | extern int restrict_link_by_signature(struct key *dest_keyring, |
| a511e1af | 58 | const struct key_type *type, |
| aaf66c88 MM |
59 | const union key_payload *payload, |
| 60 | struct key *trust_keyring); | |
| a511e1af | 61 | |
| 7e3c4d22 MM |
62 | extern int restrict_link_by_key_or_keyring(struct key *dest_keyring, |
| 63 | const struct key_type *type, | |
| 64 | const union key_payload *payload, | |
| 65 | struct key *trusted); | |
| 66 | ||
| 8e323a02 MM |
67 | extern int restrict_link_by_key_or_keyring_chain(struct key *trust_keyring, |
| 68 | const struct key_type *type, | |
| 69 | const union key_payload *payload, | |
| 70 | struct key *trusted); | |
| 71 | ||
| 5a307718 DH |
72 | extern int query_asymmetric_key(const struct kernel_pkey_params *, |
| 73 | struct kernel_pkey_query *); | |
| 74 | ||
| 75 | extern int encrypt_blob(struct kernel_pkey_params *, const void *, void *); | |
| 76 | extern int decrypt_blob(struct kernel_pkey_params *, const void *, void *); | |
| 77 | extern int create_signature(struct kernel_pkey_params *, const void *, void *); | |
| 78 | extern int verify_signature(const struct key *, | |
| 79 | const struct public_key_signature *); | |
| 4ae71c1d | 80 | |
| db6c43bd TS |
81 | int public_key_verify_signature(const struct public_key *pkey, |
| 82 | const struct public_key_signature *sig); | |
| 83 | ||
| a9681bf3 | 84 | #endif /* _LINUX_PUBLIC_KEY_H */ |