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    "info": {
        "author": "Carlton Shepherd",
        "author_email": "carlton@linux.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 3 - Alpha",
            "Intended Audience :: Science/Research",
            "License :: OSI Approved :: MIT License",
            "Operating System :: OS Independent",
            "Programming Language :: Python :: 3",
            "Topic :: Security :: Cryptography"
        ],
        "description": "# PyCocks\n\nA Python implementation of Cocks' identity-based encryption (IBE) scheme [1].\n\nCocks' scheme is distinct in that it is based on the quadratic residuosity hardness problem, rather than bilinear pairings used prevalently in other IBE schemes, e.g. Boneh-Franklin [2]. \n\nAs such, no dependencies are required for performing pairing-based cryptography; only gmpy2 is sufficient.\n\n## Usage\n\nThe module comprises two main classes:\n\n1. ```CocksPKG```: the public key generator (PKG) responsible for the scheme's initialisation and extracting secret keys from authorised user identity values.\n\n2. ```Cocks```: the user-side class for encrypting and decrypting messages using the secret key and public modulus generated by ```CocksPKG```.\n\nExample usage:\n```\nfrom cocks.cocks import CocksPKG, Cocks\n\ncocks_pkg = CocksPKG()   # Optional param.: bit size (default = 2048)\n\n# Extract private key, r, from an identity string; a transformed\n# ID string, a, is also returned, which is required for encryption\n# and decryption.\nr, a = cocks_pkg.extract(\"User1\")\n\ncocks = Cocks(cocks_pkg.n)  # Must use same public modulus, n, from cocks_pkg\nc = cocks.encrypt(b\"test\", a)\nmsg = cocks.decrypt(c, r, a)  # => b\"test\"\n```\n\n## Tests\n\nSome tests can be found in ```test_pycocks.py```, which can be executed using ```pytest```.\n\n## Requirements\n\n- gmpy2 (tested v2.0.8)\n\n## References\n\n1. [C. Cocks, *\"An identity based encryption scheme based on quadratic residues\"*, Proceedings of the IMA International Conference on Cryptography and Coding. Springer, 2001.](https://link.springer.com/chapter/10.1007/3-540-45325-3_32)\n2. [D. Boneh and M. Franklin, *\"Identity-based encryption from the Weil pairing\"*, Annual International Cryptology Conference. Springer, 2001.](https://search.proquest.com/docview/918831320?pq-origsite=gscholar)\n\n\n",
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        "keywords": "cocks,encryption,decryption,ibe,identity,based,crypto,cryptography,security,privacy",
        "license": "",
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        "name": "pycocks",
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        "summary": "An implementation of Cocks' identity-based encryption (IBE) scheme",
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