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Implementation of the Skein hash function

Project description

PySkein is an extension module for Python 3.0 or later,

implementing the Skein hash algorithm, one of the Second Round Candidates in the NIST SHA-3 Competition. While originally based on the optimized version of the reference implementation by Doug Whiting, PySkein has since evolved into a feature-rich and pythonic module. It is released as free software under the GNU General Public License. Its highlights are:

  • A simple interface following the hash algorithms in the Python standard library (like hashlib.sha1 or hashlib.sha256)

  • Many features of the Skein specification (such as tree hashing, various parameters and output sizes etc.)

  • High hashing performance through efficient C implementation (7.1 cycles/byte for sequential hashing and 4.2 cycles/byte for tree hashing on two cores, measured on an Athlon 64 X2)

  • Threefish, the tweakable block cipher used in Skein, available for encrytion and decryption on its own

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