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trezor-firmware/ecdsa.h
2013-09-20 17:13:24 +02:00

39 lines
1.7 KiB
C

/**
* Copyright (c) 2013 Tomas Dzetkulic
* Copyright (c) 2013 Pavol Rusnak
*
* 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 __ECDSA_H__
#define __ECDSA_H__
#include <stdint.h>
#include "secp256k1.h"
// all functions use secp256k1 curve
void ecdsa_sign(const uint8_t *priv_key, const uint8_t *msg, uint32_t msg_len, uint8_t *sig, uint32_t *sig_len);
void ecdsa_get_public_key_der(const uint8_t *priv_key, uint8_t *pub_key, uint32_t *pub_key_len);
void ecdsa_get_public_key_compressed(const uint8_t *priv_key, uint8_t *pub_key);
void ecdsa_get_address(const uint8_t *pub_key, char version, char *addr);
int ecdsa_verify(const uint8_t *pub_key, const uint8_t *signature, const uint8_t *msg, uint32_t msg_len);
#endif