cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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public_key.h (2440B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/* Asymmetric public-key algorithm definitions
      3 *
      4 * See Documentation/crypto/asymmetric-keys.rst
      5 *
      6 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
      7 * Written by David Howells (dhowells@redhat.com)
      8 */
      9
     10#ifndef _LINUX_PUBLIC_KEY_H
     11#define _LINUX_PUBLIC_KEY_H
     12
     13#include <linux/keyctl.h>
     14#include <linux/oid_registry.h>
     15
     16/*
     17 * Cryptographic data for the public-key subtype of the asymmetric key type.
     18 *
     19 * Note that this may include private part of the key as well as the public
     20 * part.
     21 */
     22struct public_key {
     23	void *key;
     24	u32 keylen;
     25	enum OID algo;
     26	void *params;
     27	u32 paramlen;
     28	bool key_is_private;
     29	const char *id_type;
     30	const char *pkey_algo;
     31};
     32
     33extern void public_key_free(struct public_key *key);
     34
     35/*
     36 * Public key cryptography signature data
     37 */
     38struct public_key_signature {
     39	struct asymmetric_key_id *auth_ids[3];
     40	u8 *s;			/* Signature */
     41	u8 *digest;
     42	u32 s_size;		/* Number of bytes in signature */
     43	u32 digest_size;	/* Number of bytes in digest */
     44	const char *pkey_algo;
     45	const char *hash_algo;
     46	const char *encoding;
     47	const void *data;
     48	unsigned int data_size;
     49};
     50
     51extern void public_key_signature_free(struct public_key_signature *sig);
     52
     53extern struct asymmetric_key_subtype public_key_subtype;
     54
     55struct key;
     56struct key_type;
     57union key_payload;
     58
     59extern int restrict_link_by_signature(struct key *dest_keyring,
     60				      const struct key_type *type,
     61				      const union key_payload *payload,
     62				      struct key *trust_keyring);
     63
     64extern int restrict_link_by_key_or_keyring(struct key *dest_keyring,
     65					   const struct key_type *type,
     66					   const union key_payload *payload,
     67					   struct key *trusted);
     68
     69extern int restrict_link_by_key_or_keyring_chain(struct key *trust_keyring,
     70						 const struct key_type *type,
     71						 const union key_payload *payload,
     72						 struct key *trusted);
     73
     74extern int query_asymmetric_key(const struct kernel_pkey_params *,
     75				struct kernel_pkey_query *);
     76
     77extern int encrypt_blob(struct kernel_pkey_params *, const void *, void *);
     78extern int decrypt_blob(struct kernel_pkey_params *, const void *, void *);
     79extern int create_signature(struct kernel_pkey_params *, const void *, void *);
     80extern int verify_signature(const struct key *,
     81			    const struct public_key_signature *);
     82
     83int public_key_verify_signature(const struct public_key *pkey,
     84				const struct public_key_signature *sig);
     85
     86#endif /* _LINUX_PUBLIC_KEY_H */