{
    "info": {
        "author": "Kirill Kirikov",
        "author_email": "kk@4irelabs.com",
        "bugtrack_url": null,
        "classifiers": [
            "License :: OSI Approved :: MIT License",
            "Operating System :: OS Independent",
            "Programming Language :: Python :: 3"
        ],
        "description": "Strict DER signature encoding/decoding.\n\nSee [bip66](https://github.com/bitcoin/bips/blob/master/bip-0066.mediawiki).\n\n- This module **works only with [two's complement](https://en.wikipedia.org/wiki/Two's_complement) numbers**.\n- BIP66 doesn't check that `r` or `s` are fully valid.\n  - `check`/`decode` doesn't check that `r` or `s` great than 33 bytes or that this number represent valid point on elliptic curve.\n  - `encode` doesn't check that `r`/`s` represent valid point on elliptic curve.\n\n## Example\n\n``` python\nimport bip66\nr = \"29db2d5f4e1dcc04e19266cce3cb135865784c62ab653b307f0e0bb744f5c2aa\"\ns = \"00a97f5826912cac8b44d9f577a26f169a2f8db781f2ddb7de2bc886e93b6844\"\nencoded = bip66.encode(binascii.unhexlify(r), binascii.unhexlify(s))\nsignature = binascii.hexlify(encoded).decode()\n# > 00a97f5826912cac8b44d9f577a26f169a2f8db781f2ddb7de2bc886e93b6844\n\nDER = \"3044022029db2d5f4e1dcc04e19266cce3cb135865784c62ab653b307f0e0bb\" \\\n      \"744f5c2aa022000a97f5826912cac8b44d9f577a26f169a2f8db781f2ddb7de2bc886e93b6844\"\nr, s = bip66.decode(binascii.unhexlify(DER))\nprint(binascii.hexlify(r).decode())\nprint(binascii.hexlify(s).decode())\n\n# > 29db2d5f4e1dcc04e19266cce3cb135865784c62ab653b307f0e0bb744f5c2aa\n# > 00a97f5826912cac8b44d9f577a26f169a2f8db781f2ddb7de2bc886e93b6844\n```\n\nA catch-all exception regex:\n``` python\n/Expected DER (integer|sequence)|(R|S) value (excessively padded|is negative)|(R|S|DER sequence) length is (zero|too short|too long|invalid)/\n```\n\n## LICENSE [MIT](LICENSE)\n\n\n",
        "description_content_type": "text/markdown",
        "docs_url": null,
        "download_url": "",
        "downloads": {
            "last_day": -1,
            "last_month": -1,
            "last_week": -1
        },
        "home_page": "https://github.com/KiriKiri/bip66",
        "keywords": "",
        "license": "",
        "maintainer": "",
        "maintainer_email": "",
        "name": "bip66",
        "package_url": "https://pypi.org/project/bip66/",
        "platform": "",
        "project_url": "https://pypi.org/project/bip66/",
        "project_urls": {
            "Homepage": "https://github.com/KiriKiri/bip66"
        },
        "release_url": "https://pypi.org/project/bip66/0.4/",
        "requires_dist": null,
        "requires_python": "",
        "summary": "Strict DER signature encoding/decoding.",
        "version": "0.4"
    },
    "last_serial": 4622992,
    "releases": {
        "0.4": [
            {
                "comment_text": "",
                "digests": {
                    "md5": "187859bbb1b0208b5e4598fcb51ba608",
                    "sha256": "aa79b753db54bdf57cabcf68315700316bab7da30561e810603c1c01c74df350"
                },
                "downloads": -1,
                "filename": "bip66-0.4-py3-none-any.whl",
                "has_sig": false,
                "md5_digest": "187859bbb1b0208b5e4598fcb51ba608",
                "packagetype": "bdist_wheel",
                "python_version": "py3",
                "requires_python": null,
                "size": 7929,
                "upload_time": "2018-12-20T23:44:43",
                "url": "https://files.pythonhosted.org/packages/ec/39/b383faec6f161c9a5f22a41ab4e2e7ea4439ab17a7730f9c667a35089761/bip66-0.4-py3-none-any.whl"
            }
        ]
    },
    "urls": [
        {
            "comment_text": "",
            "digests": {
                "md5": "187859bbb1b0208b5e4598fcb51ba608",
                "sha256": "aa79b753db54bdf57cabcf68315700316bab7da30561e810603c1c01c74df350"
            },
            "downloads": -1,
            "filename": "bip66-0.4-py3-none-any.whl",
            "has_sig": false,
            "md5_digest": "187859bbb1b0208b5e4598fcb51ba608",
            "packagetype": "bdist_wheel",
            "python_version": "py3",
            "requires_python": null,
            "size": 7929,
            "upload_time": "2018-12-20T23:44:43",
            "url": "https://files.pythonhosted.org/packages/ec/39/b383faec6f161c9a5f22a41ab4e2e7ea4439ab17a7730f9c667a35089761/bip66-0.4-py3-none-any.whl"
        }
    ]
}