xmss-KAT-generator/wots.h
Joost Rijneveld 6a8571d880
Revert to using runtime-only parameter struct
Using global defines for parameters (as seems to be typical in
academic crypto code) does not play nice with multithreading at all.
2017-10-16 12:09:07 +02:00

40 line
1.3 KiB
C

/*
wots.h version 20160722
Andreas Hülsing
Joost Rijneveld
Public domain.
*/
#ifndef WOTS_H
#define WOTS_H
#include <stdint.h>
#include "params.h"
/**
* WOTS key generation. Takes a 32byte seed for the secret key, expands it to a full WOTS secret key and computes the corresponding public key.
* For this it takes the seed pub_seed which is used to generate bitmasks and hash keys and the address of this WOTS key pair addr
*
* Places the computed public key at address pk.
*/
void wots_pkgen(const xmss_params *params,
unsigned char *pk, const unsigned char *sk,
const unsigned char *pub_seed, uint32_t addr[8]);
/**
* Takes a m-byte message and the 32-byte seed for the secret key to compute a signature that is placed at "sig".
*/
void wots_sign(const xmss_params *params,
unsigned char *sig, const unsigned char *msg,
const unsigned char *sk, const unsigned char *pub_seed,
uint32_t addr[8]);
/**
* Takes a WOTS signature, a m-byte message and computes a WOTS public key that it places at pk.
*/
void wots_pk_from_sig(const xmss_params *params, unsigned char *pk,
const unsigned char *sig, const unsigned char *msg,
const unsigned char *pub_seed, uint32_t addr[8]);
#endif