diff options
Diffstat (limited to 'include/crypto/public_key.h')
| -rw-r--r-- | include/crypto/public_key.h | 62 |
1 files changed, 50 insertions, 12 deletions
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h index be626eac9113..81098e00c08f 100644 --- a/include/crypto/public_key.h +++ b/include/crypto/public_key.h @@ -1,20 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Asymmetric public-key algorithm definitions * - * See Documentation/crypto/asymmetric-keys.txt + * See Documentation/crypto/asymmetric-keys.rst * * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. */ #ifndef _LINUX_PUBLIC_KEY_H #define _LINUX_PUBLIC_KEY_H +#include <linux/errno.h> #include <linux/keyctl.h> +#include <linux/oid_registry.h> /* * Cryptographic data for the public-key subtype of the asymmetric key type. @@ -25,9 +23,16 @@ struct public_key { void *key; u32 keylen; + enum OID algo; + void *params; + u32 paramlen; bool key_is_private; const char *id_type; const char *pkey_algo; + unsigned long key_eflags; /* key extension flags */ +#define KEY_EFLAG_CA 0 /* set if the CA basic constraints is set */ +#define KEY_EFLAG_DIGITALSIG 1 /* set if the digitalSignature usage is set */ +#define KEY_EFLAG_KEYCERTSIGN 2 /* set if the keyCertSign usage is set */ }; extern void public_key_free(struct public_key *key); @@ -36,11 +41,11 @@ extern void public_key_free(struct public_key *key); * Public key cryptography signature data */ struct public_key_signature { - struct asymmetric_key_id *auth_ids[2]; + struct asymmetric_key_id *auth_ids[3]; u8 *s; /* Signature */ - u32 s_size; /* Number of bytes in signature */ u8 *digest; - u8 digest_size; /* Number of bytes in digest */ + u32 s_size; /* Number of bytes in signature */ + u32 digest_size; /* Number of bytes in digest */ const char *pkey_algo; const char *hash_algo; const char *encoding; @@ -69,16 +74,49 @@ extern int restrict_link_by_key_or_keyring_chain(struct key *trust_keyring, const union key_payload *payload, struct key *trusted); +#if IS_REACHABLE(CONFIG_ASYMMETRIC_KEY_TYPE) +extern int restrict_link_by_ca(struct key *dest_keyring, + const struct key_type *type, + const union key_payload *payload, + struct key *trust_keyring); +int restrict_link_by_digsig(struct key *dest_keyring, + const struct key_type *type, + const union key_payload *payload, + struct key *trust_keyring); +#else +static inline int restrict_link_by_ca(struct key *dest_keyring, + const struct key_type *type, + const union key_payload *payload, + struct key *trust_keyring) +{ + return 0; +} + +static inline int restrict_link_by_digsig(struct key *dest_keyring, + const struct key_type *type, + const union key_payload *payload, + struct key *trust_keyring) +{ + return 0; +} +#endif + extern int query_asymmetric_key(const struct kernel_pkey_params *, struct kernel_pkey_query *); -extern int encrypt_blob(struct kernel_pkey_params *, const void *, void *); -extern int decrypt_blob(struct kernel_pkey_params *, const void *, void *); -extern int create_signature(struct kernel_pkey_params *, const void *, void *); extern int verify_signature(const struct key *, const struct public_key_signature *); +#if IS_REACHABLE(CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE) int public_key_verify_signature(const struct public_key *pkey, const struct public_key_signature *sig); +#else +static inline +int public_key_verify_signature(const struct public_key *pkey, + const struct public_key_signature *sig) +{ + return -EINVAL; +} +#endif #endif /* _LINUX_PUBLIC_KEY_H */ |