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    "info": {
        "author": "Peio Popov",
        "author_email": "peio@peio.org",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 5 - Production/Stable",
            "Environment :: Console",
            "Intended Audience :: Education",
            "License :: Public Domain",
            "Natural Language :: English",
            "Operating System :: OS Independent",
            "Programming Language :: Python",
            "Topic :: Security :: Cryptography"
        ],
        "description": "Padding - Padding methods for password based encryption\n---------------------------------------------\n\nAppend and remove padding to/from a string. \n\nI. Functions:\nappendPadding(str, blocksize=AES_blocksize, mode='CMS'):\n Pad (append padding to) string for use with symmetric encryption algorithm\n    Input: (string) str - String to be padded\n           (int)    blocksize - block size of the encryption algorithm. Usually 8 or 16 bytes\n           (string) mode - padding scheme one in (CMS, Bit, ZeroLen, Null, Space, Random)\n    Return:(string) Padded string according to chosen padding mode\n\nremovePadding(str, blocksize=AES_blocksize, mode='CMS'):\n  Remove padding from string \n  Input: (str) str - String to be padded\n         (int) blocksize - block size of the algorithm. Usually 8 or 16 bytes\n         (string) mode - padding scheme one in (CMS, Bit, ZeroLen, Null, Space, Random)\n  Return:(string) Decrypted string without padding\n\nII. Blocksizes:\nDES (Triple DES), CAST5 and Blowfish have block size of 64 bits = 8 bytes\nDES_blocksize = 8 \nCAST5_blocksize = 8\nBlowfish_blocksize = 8\n\nAES has fixed block size of 128 bits = 16 bytes and this is the default blocksize\nAES_blocksize = 16\n\nIII. Mode:\nMODES ={\n(0,'CMS')     : 'Pad with bytes all of the same value as the number of padding bytes. Default mode used in Cryptographic Message Syntax (CMS as defined in RFC 5652, PKCS#5, PKCS#7 and RFC 1423 PEM)',\n(1,'Bit')     : 'BitPadding: Pad with 0x80 (10000000) followed by zero (null) bytes. Described in ANSI X.923 and ISO/IEC 9797-1',\n(2,'ZeroLen') : 'Pad with zeroes except make the last byte equal to the number (length) of padding bytes',\n(3,'Null')    : 'Pad with null bytes. Only for encrypting of text data.',\n(4,'Space')   : 'Pad with spaces. Only for encrypting of text data.',\n(5,'Random')  : 'ISO 10126 Padding (withdrawn in 2007): Pad with random bytes + last byte equal to the number of padding bytes'         \n       }\n\nCMS mode is the default one\n\nExamples in the README.txt file",
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        "keywords": "padding,CMS,CMS Padding,Bit Padding,Null Padding,Random Padding,PKCS,RFC 5652,PKCS#5,PKCS#7,RFC 1423",
        "license": "Public Domain",
        "maintainer": "",
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        "name": "Padding",
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        "summary": "Padding methods for password based encryption",
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