hostap/src/crypto/sha256.h
Jouni Malinen 0741c481ee SAE: Check SHA256-PRF operation result
While this is mostly theoretical, check explicitly that SHA256
operations in sha256_prf*() succeed.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-27 21:44:49 +03:00

30 lines
1.1 KiB
C

/*
* SHA256 hash implementation and interface functions
* Copyright (c) 2003-2016, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef SHA256_H
#define SHA256_H
#define SHA256_MAC_LEN 32
int hmac_sha256_vector(const u8 *key, size_t key_len, size_t num_elem,
const u8 *addr[], const size_t *len, u8 *mac);
int hmac_sha256(const u8 *key, size_t key_len, const u8 *data,
size_t data_len, u8 *mac);
int 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);
int sha256_prf_bits(const u8 *key, size_t key_len, const char *label,
const u8 *data, size_t data_len, u8 *buf,
size_t buf_len_bits);
void tls_prf_sha256(const u8 *secret, size_t secret_len,
const char *label, const u8 *seed, size_t seed_len,
u8 *out, size_t outlen);
int hmac_sha256_kdf(const u8 *secret, size_t secret_len,
const char *label, const u8 *seed, size_t seed_len,
u8 *out, size_t outlen);
#endif /* SHA256_H */