crypto/slhdsa/wots.h

/* Copyright (c) 2024, Google LLC
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */

#ifndef OPENSSL_HEADER_CRYPTO_SLHDSA_WOTS_H
#define OPENSSL_HEADER_CRYPTO_SLHDSA_WOTS_H

#include "./params.h"

#if defined(__cplusplus)
extern "C" {
#endif


// Implements Algorithm 6: wots_pkGen function, page 18
void slhdsa_wots_pk_gen(uint8_t pk[SLHDSA_SHA2_128S_N],
                        const uint8_t sk_seed[SLHDSA_SHA2_128S_N],
                        const uint8_t pub_seed[SLHDSA_SHA2_128S_N],
                        uint8_t addr[32]);

// Implements Algorithm 7: wots_sign function, page 20
void slhdsa_wots_sign(uint8_t sig[SLHDSA_SHA2_128S_WOTS_BYTES],
                      const uint8_t msg[SLHDSA_SHA2_128S_N],
                      const uint8_t sk_seed[SLHDSA_SHA2_128S_N],
                      const uint8_t pub_seed[SLHDSA_SHA2_128S_N],
                      uint8_t addr[32]);

// Implements Algorithm 8: wots_pkFromSig function, page 21
void slhdsa_wots_pk_from_sig(uint8_t pk[SLHDSA_SHA2_128S_N],
                             const uint8_t sig[SLHDSA_SHA2_128S_WOTS_BYTES],
                             const uint8_t msg[SLHDSA_SHA2_128S_N],
                             const uint8_t pub_seed[SLHDSA_SHA2_128S_N],
                             uint8_t addr[32]);


#if defined(__cplusplus)
}  // extern C
#endif

#endif  // OPENSSL_HEADER_CRYPTO_SLHDSA_WOTS_H