fips_prf_gnutls.c File Reference

FIPS 186-2 PRF for libgcrypt. More...

#include "includes.h"
#include <gcrypt.h>
#include "common.h"
#include "crypto.h"

Functions
int	fips186_2_prf (const u8 *seed, size_t seed_len, u8 *x, size_t xlen)
	NIST FIPS Publication 186-2 change notice 1 PRF.

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Detailed Description

FIPS 186-2 PRF for libgcrypt.

Copyright

Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi>

This software may be distributed under the terms of the BSD license. See README for more details.

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Function Documentation

int fips186_2_prf	(	const u8 *	seed,
		size_t	seed_len,
		u8 *	x,
		size_t	xlen
	)

NIST FIPS Publication 186-2 change notice 1 PRF.

Parameters:

seed	Seed/key for the PRF
seed_len	Seed length in bytes
x	Buffer for PRF output
xlen	Output length in bytes

Returns:

0 on success, -1 on failure

This function implements random number generation specified in NIST FIPS Publication 186-2 for EAP-SIM. This PRF uses a function that is similar to SHA-1, but has different message padding.