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            "Intended Audience :: Developers",
            "Intended Audience :: Education",
            "License :: OSI Approved :: MIT License",
            "Natural Language :: English",
            "Operating System :: OS Independent",
            "Programming Language :: Python :: 3.6",
            "Programming Language :: Python :: 3.7",
            "Programming Language :: Python :: 3 :: Only",
            "Topic :: Scientific/Engineering",
            "Topic :: Security :: Cryptography",
            "Topic :: Software Development :: Libraries :: Python Modules"
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        "description": "# btclib: a python3 library for 'bitcoin cryptography'\n\n<http://github.com/dginst/btclib>\n\n[![Build Status](https://travis-ci.org/dginst/btclib.svg)](https://travis-ci.org/dginst/btclib)\n[![Coverage Status](https://coveralls.io/repos/github/dginst/btclib/badge.svg)](https://coveralls.io/github/dginst/btclib)\n[![PyPI status](https://img.shields.io/pypi/status/btclib.svg)](https://pypi.python.org/pypi/btclib/)\n[![PyPI pyversions](https://img.shields.io/pypi/pyversions/btclib.svg)](https://pypi.python.org/pypi/btclib/)\n[![PyPI version](https://img.shields.io/pypi/v/btclib.svg)](https://pypi.python.org/pypi/btclib/)\n[![GitHub License](https://img.shields.io/github/license/dginst/btclib.svg)](https://github.com/dginst/btclib/blob/master/LICENSE)\n[![ReadtheDocs](https://img.shields.io/readthedocs/btclib.svg)](https://btclib.readthedocs.io)\n\nbtclib is a python3 type annotated library intended for teaching and\ndemonstration of the elliptic curve cryptography used in bitcoin.\n\nIt does not have external requirements or dependencies;\nto install (and upgrade) it:\n\n```shell\npython -m pip install --upgrade btclib\n```\n\nOriginally developed for the\n[_Bitcoin and Blockchain Technology_](https://www.ametrano.net/bbt/) course\nat Milano Bicocca and Politecnico di Milano, its algorithms are not intended\nfor production environments: they could be broken using side-channel attacks;\nmoreover, they are often refactored without care for backward compatibility.\n\nThe library includes:\n\n- modulo algebra functions (gcd, inverse, legendre symbol, square root)\n- octets / integer / point conversion functions\n- elliptic curve class\n  - fast algebra implemented using Jacobian coordinates\n  - double scalar multiplication (Straus's algorithm, also known as\n    Shamir's trick)\n  - multi scalar multiplication (Bos-coster's algorithm)\n  - point simmetry solution: odd/even, low/high, and quadratic residue\n- available curves: SEC 1 v1 and v2, NIST, Brainpool, and\n  low cardinality test curves\n- DSA signature with (transaction) DER encoding and (message) compact encoding\n- Schnorr signature (according to\n  [bip-schnorr](https://github.com/sipa/bips/blob/bip-schnorr/bip-schnorr.mediawiki)\n  bitcoin standardization)\n  - batch validation\n  - threshold signature (see test-suite)\n  - MuSig multi-signature (see test-suite)\n- Borromean ring signature\n- [RFC 6979](https://tools.ietf.org/html/rfc6979:) to make signature\n  schemes deterministic\n- Sign-to-contract commitment\n- Diffie-Hellman\n- Pedersen Committment\n- Base58 encoding, addresses, WIFs\n- [BIP32](https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki)\n  hierarchical deterministic wallets\n- [BIP39](https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki)\n  wordlists and mnemonic for generating deterministic keys\n- [Electrum](https://electrum.org/#home) standard for mnemonic\n\nA very extensive test suite reproduces results from major official sources\nand [covers 100%](https://coveralls.io/github/dginst/btclib) of the library\ncode base.\n\n\n",
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        "keywords": "bitcoin cryptography elliptic-curves dsa schnorr RFC-6979 bip32 bip39 electrum base58",
        "license": "MIT License",
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        "name": "btclib",
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