mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-12-29 17:25:38 +00:00
acb0ed8432
encrypt_blob(), decrypt_blob() and create_signature() were some of the
functions added in 2018 by
commit 5a30771832 ("KEYS: Provide missing asymmetric key subops for new
key type ops [ver #2]")
however, they've not been used.
Remove them.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/* Asymmetric public-key algorithm definitions
|
|
*
|
|
* See Documentation/crypto/asymmetric-keys.rst
|
|
*
|
|
* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*/
|
|
|
|
#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.
|
|
*
|
|
* Note that this may include private part of the key as well as the public
|
|
* part.
|
|
*/
|
|
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);
|
|
|
|
/*
|
|
* Public key cryptography signature data
|
|
*/
|
|
struct public_key_signature {
|
|
struct asymmetric_key_id *auth_ids[3];
|
|
u8 *s; /* Signature */
|
|
u8 *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;
|
|
};
|
|
|
|
extern void public_key_signature_free(struct public_key_signature *sig);
|
|
|
|
extern struct asymmetric_key_subtype public_key_subtype;
|
|
|
|
struct key;
|
|
struct key_type;
|
|
union key_payload;
|
|
|
|
extern int restrict_link_by_signature(struct key *dest_keyring,
|
|
const struct key_type *type,
|
|
const union key_payload *payload,
|
|
struct key *trust_keyring);
|
|
|
|
extern int restrict_link_by_key_or_keyring(struct key *dest_keyring,
|
|
const struct key_type *type,
|
|
const union key_payload *payload,
|
|
struct key *trusted);
|
|
|
|
extern int restrict_link_by_key_or_keyring_chain(struct key *trust_keyring,
|
|
const struct key_type *type,
|
|
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 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 */
|