Metadata-Version: 2.1 Name: pysha3 Version: 1.0.2 Summary: SHA-3 (Keccak) for Python 2.7 - 3.5 Home-page: https://github.com/tiran/pysha3 Author: Christian Heimes Author-email: christian@python.org Maintainer: Christian Heimes Maintainer-email: christian@python.org License: PSFL (Keccak: CC0 1.0 Universal) Keywords: sha3 sha-3 keccak hash Platform: POSIX Platform: Windows Classifier: Development Status :: 4 - Beta Classifier: Intended Audience :: Developers Classifier: License :: OSI Approved :: Python Software Foundation License Classifier: License :: CC0 1.0 Universal (CC0 1.0) Public Domain Dedication Classifier: Natural Language :: English Classifier: Operating System :: MacOS :: MacOS X Classifier: Operating System :: POSIX Classifier: Operating System :: POSIX :: BSD Classifier: Operating System :: POSIX :: Linux Classifier: Operating System :: Microsoft :: Windows Classifier: Programming Language :: C Classifier: Programming Language :: Python Classifier: Programming Language :: Python :: 2 Classifier: Programming Language :: Python :: 2.7 Classifier: Programming Language :: Python :: 3 Classifier: Programming Language :: Python :: 3.4 Classifier: Programming Language :: Python :: 3.5 Classifier: Topic :: Security :: Cryptography License-File: LICENSE ====== pysha3 ====== SHA-3 wrapper (keccak) for Python. The package is a wrapper around the optimized Keccak Code Package, https://github.com/gvanas/KeccakCodePackage . The module is a standalone version of my SHA-3 module from Python 3.6 (currently under development). The code in sha3module.c has been modified to be compatible with Python 2.7 to 3.5. Python 2.6 and earlier are not supported. Updates since pysha 0.3 ======================= **pysha3 1.0 is not compatible with pysha3 0.3!** pysha3 < 1.0 used the old Keccak implementation. During the finalization of SHA3, NIST changed the delimiter suffix from 0x01 to 0x06. The Keccak sponge function stayed the same. pysha3 1.0 provides the previous Keccak hash, too. Platforms ========= pysha3 has been successfully tested on several platforms: - Linux (GCC, clang) on X86, X86_64 and ARMv6 (little endian) - Windows (VS 2008, VS 2010, VS2015) on X86 and X86_64 Usage ===== The `sha3` module contains several constructors for hash objects with a PEP 247 compatible interface. The module provides SHA3, SHAKE and Keccak: * `sha3_228()`, `sha3_256()`, `sha3_384()`, and `sha3_512()` * `shake_128()`, `shake_256()` * `keccak_228()`, `keccak_256()`, `keccak_384()`, and `keccak_512()` The `sha3` module monkey patches the `hashlib` module . The monkey patch is automatically activated with the first import of the `sha3` module. The `hashlib` module of Python 3.6 will support the four SHA-3 algorithms and the two SHAKE algorithms on all platforms. Therefore you shouldn't use the sha3 module directly and rather go through the `hashlib` interface:: >>> import sys >>> import hashlib >>> if sys.version_info < (3, 6): ... import sha3 >>> s = hashlib.sha3_512() >>> s.name 'sha3_512' >>> s.digest_size 64 >>> s.update(b"data") >>> s.hexdigest() 'ceca4daf960c2bbfb4a9edaca9b8137a801b65bae377e0f534ef9141c8684c0fedc1768d1afde9766572846c42b935f61177eaf97d355fa8dc2bca3fecfa754d' >>> s = hashlib.shake_256() >>> s.update(b"data") >>> s.hexdigest(4) 'c73dbed8' >>> s.hexdigest(8) 'c73dbed8527f5ae0' >>> s.hexdigest(16) 'c73dbed8527f5ae0568679f30ecc5cb6' >>> import sha3 >>> k = sha3.keccak_512() >>> k.update(b"data") >>> k.hexdigest() '1065aceeded3a5e4412e2187e919bffeadf815f5bd73d37fe00d384fe29f55f08462fdabe1007b993ce5b8119630e7db93101d9425d6e352e22ffe3dcb56b825' Changelog ========= pysha3 1.0.2 ------------ *Release: 05-Feb-2017* - Rename internal C extension to _pysha3 to avoild conflict with Python 3.6' _sha3 extension. pysha3 1.0.1 ------------ *Release: 24-Jan-2017* - Fix github.org -> github.com (Pi Delport) - Fix endianness checks for Python 2 (William Grant) - Fix changelog, the Christmas release was 1.0.0, not 1.1.0 pysha3 1.0.0 ------------ *Release date: 24-Dec-2016* - Synchronize with Python 3.6.0 release - Move all backport related additions to backport.inc - Fix flake8 violations pysha3 1.0b1 ------------ *Release date: 01-May-2016* - Update backend to use the latest Keccak Code Package. pysha3 now implements the official NIST standard. The old Keccak hashes are available with keccak prefix. - Add SHAKE support. - All sha3, shake and keccak variants are separate types instead of factory functions that return the same type. - Drop Python 2.6 and Python 3.0 to 3.3 support. - Fix typo that disabled threading optimization. - Add vector files for additional tests. - Add experimental HMAC support based on examples from http://wolfgang-ehrhardt.de/hmac-sha3-testvectors.html . - Test hashing of unaligned data. - Add ISO C11 memset_s() function as _Py_memset_s() in order to securely wipe memory that holds sensitive data. The page https://www.securecoding.cert.org/confluence/display/seccode/MSC06-C.+Be+aware+of+compiler+optimization+when+dealing+with+sensitive+data explains the motivation for memset_s(). - Add tox support. - Add Travis and appveyor integration. - Add _capacity_bits, _rate_bits and _suffix attributes for diagnostic purposes. pysha3 0.3 ---------- *Release date: 14-Oct-2012* - Fix 64bit big endian support - Add workaround for alignment error on 64bit SPARC machine by using the opt32 implementation. - block_size now returns NotImplemented to prevent users from using pysha3 with the hmac module. pysha3 0.2.2 ------------ *Release date: 07-Oct-2012* - Re-add brg_endian.h to fix issue on Solaris (big endian platform) pysha3 0.2.1 ------------ *Release date: 06-Oct-2012* - Fix MANIFEST.in to include Makefile and tests.py - Add setup.py test command with hack for inplace builds - Enhance README.txt and fixed its markup pysha3 0.2 ---------- *Release date: 06-Oct-2012* - Change directory struct to use the same directory layout as Python 3.4. - Remove C++ comments from Keccak sources for ANSI C compatibility. - Declare all Keccak functions and globals as static to avoid name clashes. - Remove alias sha3() for sha3_512(). - Add block_size attribute. Keccak has a internal sponge size of 1600 bits. - Release GIL around SHA3_update() calls. - Monkey patch the hashlib module to support, e.g. hashlib.sha3_512() and hashlib.new("sha3_512") - Release GIL around SHA3_update() when the data exceeds a certain size. - Fix build on platforms with an unsigned 64bit integer type (uint64_t). The module falls back to 32bit implementation of Keccak with interleave tables. pysha3 0.1 ---------- *Release date: 04-Oct-2012* - first release - based on KeccakReferenceAndOptimized-3.2.zip