sha1-tprf.c File Reference

#include "includes.h"
#include "common.h"
#include "sha1.h"
#include "crypto.h"

Include dependency graph for sha1-tprf.c:

Go to the source code of this file.

Functions
int	sha1_t_prf (const u8 *key, size_t key_len, const char *label, const u8 *seed, size_t seed_len, u8 *buf, size_t buf_len)

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Function Documentation

int sha1_t_prf	(	const u8 *	key,
		size_t	key_len,
		const char *	label,
		const u8 *	seed,
		size_t	seed_len,
		u8 *	buf,
		size_t	buf_len
	)

sha1_t_prf - EAP-FAST Pseudo-Random Function (T-PRF) : Key for PRF : Length of the key in bytes : A unique label for each purpose of the PRF : Seed value to bind into the key : Length of the seed : Buffer for the generated pseudo-random key : Number of bytes of key to generate Returns: 0 on success, -1 of failure

This function is used to derive new, cryptographically separate keys from a given key for EAP-FAST. T-PRF is defined in RFC 4851, Section 5.5.

Definition at line 35 of file sha1-tprf.c.