54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
|
|
* SHA256 hash implementation and interface functions
|
|
* Copyright (c) 2003-2006, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of BSD
|
|
* license.
|
|
*
|
|
* See README and COPYING for more details.
|
|
*/
|
|
|
|
#ifndef SHA256_H
|
|
#define SHA256_H
|
|
#include "common.h"
|
|
#include "os.h"
|
|
|
|
#define SHA256_MAC_LEN 32
|
|
|
|
#define SHA256_BLOCK_SIZE 64
|
|
|
|
struct sha256_state {
|
|
u64 length;
|
|
u32 state[8], curlen;
|
|
u8 buf[SHA256_BLOCK_SIZE];
|
|
};
|
|
|
|
void sha256_init(struct sha256_state *md);
|
|
int sha256_process(struct sha256_state *md, const unsigned char *in,
|
|
unsigned long inlen);
|
|
int sha256_done(struct sha256_state *md, unsigned char *out);
|
|
|
|
/**
|
|
* sha256_vector - SHA256 hash for data vector
|
|
* @num_elem: Number of elements in the data vector
|
|
* @addr: Pointers to the data areas
|
|
* @len: Lengths of the data blocks
|
|
* @mac: Buffer for the hash
|
|
* Returns: 0 on success, -1 on failure
|
|
*/
|
|
int sha256_vector(size_t num_elem, const u8 *addr[], const size_t *len,
|
|
u8 *mac);
|
|
|
|
void hmac_sha256_vector(const u8 *key, size_t key_len, size_t num_elem,
|
|
const u8 *addr[], const size_t *len, u8 *mac);
|
|
void hmac_sha256(const u8 *key, size_t key_len, const u8 *data,
|
|
size_t data_len, u8 *mac);
|
|
void sha256_prf(const u8 *key, size_t key_len, const char *label,
|
|
const u8 *data, size_t data_len, u8 *buf, size_t buf_len);
|
|
|
|
#endif /* SHA256_H */
|