mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-08 23:14:51 +09:00
5fb94e9ca3
As we move stuff around, some doc references are broken. Fix some of them via this script: ./scripts/documentation-file-ref-check --fix Manually checked if the produced result is valid, removing a few false-positives. Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Coly Li <colyli@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/* Asymmetric Public-key cryptography key type interface
|
|
*
|
|
* See Documentation/crypto/asymmetric-keys.txt
|
|
*
|
|
* 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 _KEYS_ASYMMETRIC_TYPE_H
|
|
#define _KEYS_ASYMMETRIC_TYPE_H
|
|
|
|
#include <linux/key-type.h>
|
|
#include <linux/verification.h>
|
|
|
|
extern struct key_type key_type_asymmetric;
|
|
|
|
/*
|
|
* The key payload is four words. The asymmetric-type key uses them as
|
|
* follows:
|
|
*/
|
|
enum asymmetric_payload_bits {
|
|
asym_crypto, /* The data representing the key */
|
|
asym_subtype, /* Pointer to an asymmetric_key_subtype struct */
|
|
asym_key_ids, /* Pointer to an asymmetric_key_ids struct */
|
|
asym_auth /* The key's authorisation (signature, parent key ID) */
|
|
};
|
|
|
|
/*
|
|
* Identifiers for an asymmetric key ID. We have three ways of looking up a
|
|
* key derived from an X.509 certificate:
|
|
*
|
|
* (1) Serial Number & Issuer. Non-optional. This is the only valid way to
|
|
* map a PKCS#7 signature to an X.509 certificate.
|
|
*
|
|
* (2) Issuer & Subject Unique IDs. Optional. These were the original way to
|
|
* match X.509 certificates, but have fallen into disuse in favour of (3).
|
|
*
|
|
* (3) Auth & Subject Key Identifiers. Optional. SKIDs are only provided on
|
|
* CA keys that are intended to sign other keys, so don't appear in end
|
|
* user certificates unless forced.
|
|
*
|
|
* We could also support an PGP key identifier, which is just a SHA1 sum of the
|
|
* public key and certain parameters, but since we don't support PGP keys at
|
|
* the moment, we shall ignore those.
|
|
*
|
|
* What we actually do is provide a place where binary identifiers can be
|
|
* stashed and then compare against them when checking for an id match.
|
|
*/
|
|
struct asymmetric_key_id {
|
|
unsigned short len;
|
|
unsigned char data[];
|
|
};
|
|
|
|
struct asymmetric_key_ids {
|
|
void *id[2];
|
|
};
|
|
|
|
extern bool asymmetric_key_id_same(const struct asymmetric_key_id *kid1,
|
|
const struct asymmetric_key_id *kid2);
|
|
|
|
extern bool asymmetric_key_id_partial(const struct asymmetric_key_id *kid1,
|
|
const struct asymmetric_key_id *kid2);
|
|
|
|
extern struct asymmetric_key_id *asymmetric_key_generate_id(const void *val_1,
|
|
size_t len_1,
|
|
const void *val_2,
|
|
size_t len_2);
|
|
static inline
|
|
const struct asymmetric_key_ids *asymmetric_key_ids(const struct key *key)
|
|
{
|
|
return key->payload.data[asym_key_ids];
|
|
}
|
|
|
|
extern struct key *find_asymmetric_key(struct key *keyring,
|
|
const struct asymmetric_key_id *id_0,
|
|
const struct asymmetric_key_id *id_1,
|
|
bool partial);
|
|
|
|
/*
|
|
* The payload is at the discretion of the subtype.
|
|
*/
|
|
|
|
#endif /* _KEYS_ASYMMETRIC_TYPE_H */
|