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/*
* Copyright (c) 2009 Chris K Cockrum <ckc@cockrum.net>
*
* Copyright (c) 2013 Jens Trillmann <jtrillma@tzi.de>
* Copyright (c) 2013 Marc Müller-Weinhardt <muewei@tzi.de>
* Copyright (c) 2013 Lars Schmertmann <lars@tzi.de>
* Copyright (c) 2013 Hauke Mehrtens <hauke@hauke-m.de>
*
* 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.
*
*
* This implementation is based in part on the paper Implementation of an
* Elliptic Curve Cryptosystem on an 8-bit Microcontroller [0] by
* Chris K Cockrum <ckc@cockrum.net>.
*
* [0]: http://cockrum.net/Implementation_of_ECC_on_an_8-bit_microcontroller.pdf
*
* This is a efficient ECC implementation on the secp256r1 curve for 32 Bit CPU
* architectures. It provides basic operations on the secp256r1 curve and support
* for ECDH and ECDSA.
*/
#include <inttypes.h>
extern const uint32_t ecc_prime_m[8];
extern const uint32_t ecc_prime_r[8];
//debug function to print long numbers
void ecc_printNumber(const uint32_t *x, int numberLength);
void ecc_setRandom(uint32_t *secret);
#ifdef CONTIKI
#undef assert
#define assert(e) ((e) ? (void)0 : test_assert(__FILE__, __LINE__))
void test_assert(const char *, int);
#endif