mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-27 01:48:17 +00:00
9ef26c347e
Support Schnorr signature and verification defined in https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/2019-05-15-schnorr.md. The implementation is based on https://github.com/Bitcoin-ABC/secp256k1 as well as the test vectors.
37 lines
1.6 KiB
C
37 lines
1.6 KiB
C
/**
|
|
* Copyright (c) 2021 The Bitcoin ABC developers
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
|
|
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef __SCHNORR_H__
|
|
#define __SCHNORR_H__
|
|
|
|
#include "ecdsa.h"
|
|
|
|
/* A Schnorr signature is always 64 bytes */
|
|
#define SCHNORR_SIG_LENGTH 64
|
|
|
|
// sign/verify returns 0 if operation succeeded
|
|
int schnorr_sign_digest(const ecdsa_curve *curve, const uint8_t *priv_key,
|
|
const uint8_t *digest, uint8_t *result);
|
|
int schnorr_verify_digest(const ecdsa_curve *curve, const uint8_t *pub_key,
|
|
const uint8_t *msg_hash, const uint8_t *sign);
|
|
#endif
|