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Nayuki's Bitcoin cryptography library

This project implements the cryptographic primitives used in the Bitcoin system, especially elliptic curve operations and hash functions.

The code is written in two independent versions in C++ and Java. It includes a test suite of over a thousand test vectors that cover every feature provided by the library.

The library is open-source, and is written by Nayuki from the ground up. It is designed with portability and clarity in mind, and is rigorously verified for correctness and quality.

More details about features and design principles are on the main web page: https://www.nayuki.io/page/bitcoin-cryptography-library

License

Copyright © 2019 Project Nayuki. (MIT License)

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.