/*
* Copyright (C) 2011 Nokia Corporation
* Copyright (C) 2011 Intel Corporation
*
* Author:
* Dmitry Kasatkin <[email protected]>
* <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2 of the License.
*
*/

#ifndef _DIGSIG_H
#define _DIGSIG_H

#include <linux/key.h>

enum pubkey_algo {
PUBKEY_ALGO_RSA,
PUBKEY_ALGO_MAX,
};

enum digest_algo {
DIGEST_ALGO_SHA1,
DIGEST_ALGO_SHA256,
DIGEST_ALGO_MAX
};

struct pubkey_hdr {
uint8_t version; /* key format version */
uint32_t timestamp; /* key made, always 0 for now */
uint8_t algo;
uint8_t nmpi;
char mpi[0];
} __packed;

struct signature_hdr {
uint8_t version; /* signature format version */
uint32_t timestamp; /* signature made */
uint8_t algo;
uint8_t hash;
uint8_t keyid[8];
uint8_t nmpi;
char mpi[0];
} __packed;

#if defined(CONFIG_SIGNATURE) || defined(CONFIG_SIGNATURE_MODULE)

int digsig_verify(struct key *keyring, const char *sig, int siglen,
const char *digest, int digestlen);

#else

static inline int digsig_verify(struct key *keyring, const char *sig,
int siglen, const char *digest, int digestlen)
{
return -EOPNOTSUPP;
}

#endif /* CONFIG_SIGNATURE */

#endif /* _DIGSIG_H */