prf.c File Reference

#include "common.h"
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "prf.h"
#include "hmac.h"
#include "enums.h"

Functions
int32_t	getDigestLength (uint32_t type)
	Get length of digest for a given prf algorithm.
int	PrfKeyLenValid (uint32_t type, uint32_t keylen)
	Check for valid prf key length. Current implamentation always return success.
void	prf (uint8_t *key, uint32_t klen, const uint8_t *text, uint32_t tlen, uint8_t **res, uint32_t *rlen, uint32_t prftype)
	Pseudo random function (prf).
void	prf_plus (uint8_t *key, uint32_t klen, uint8_t *text, uint32_t tlen, uint8_t **res, uint32_t rlen, uint32_t prftype)
	Pseudo random function for longer results (prf+).

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Function Documentation

int32_t getDigestLength (  uint32_t  type  )  [inline]

Get length of digest for a given prf algorithm. Parameters: type  type of prf function Returns: length of digest (in bytes)

void prf (  uint8_t *  key, uint32_t  klen, const uint8_t *  text, uint32_t  tlen, uint8_t **  res, uint32_t *  rlen, uint32_t  prftype )

Pseudo random function (prf). Parameters: *key  key for hmac klen  length of key *text  data to be hashed tlen  length of text **res  result *rlen  length of result (output) prftype  type of pseudo random function (see IKEv2 specification)

void prf_plus (  uint8_t *  key, uint32_t  klen, uint8_t *  text, uint32_t  tlen, uint8_t **  res, uint32_t  rlen, uint32_t  prftype )

Pseudo random function for longer results (prf+). Parameters: *key  key for hmac klen  length of key *text  data to be hashed tlen  length of text **res  result rlen  length of result (input) prftype  type of pseudo random function (see IKEv2 specification)

int PrfKeyLenValid (  uint32_t  type, uint32_t  keylen )  [inline]

Check for valid prf key length. Current implamentation always return success. Parameters: type  type of prf algorithm keylen  key length Returns: 0 on success, 1 otherwise

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