hashlib

20081119

Python secure hash and message digest module

MD5, SHA1, SHA224, SHA256, SHA384 and SHA512

(backported from recent Python's for use on 2.3 and 2.4)

DOWNLOADS

hashlib source code: (.tar.gz) or (.zip)

BUILDING

python setup.py build [options]

Valid options: --openssl-prefix=path, --openssl-incdir=path, --openssl-libdir=path

If OpenSSL 0.9.7 or later is found it will be used. Version 0.9.8 is preferred as it provides many more optimized algorithms. OpenSSL is not required.

INSTALLING

python setup.py install

USAGE

Use the following hash object constructors:

md5, sha1, sha224, sha256, sha384, and sha512

Hash objects have update, copy, digest, and hexdigest methods.

>>> x = hashlib.sha224('spam') >>> x.hexdigest() 'e047c44d875407fdb49d53d8b2326fc3e20e27f08434fef1275a3981' >>> y = x.copy() >>> y.update(' and eggs') >>> y.hexdigest() '1c54f569f9b5c7cec6a34465de51df10b0048f3d48f7051ac6eb2e54'

DOCUMENTATION

Real documentation for this module can be found on python.org:

http://docs.python.org/library/hashlib.html

Happy hashing!

Gregory P. Smith .. greg at krypto dot org

LICENSE

PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2

The following also applies to binary packages of this module if they are linked with OpenSSL:

"This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)"

CHANGELOG

20081119: * Synced to svn.python.org r66496: * Fix possible integer overflows in _hashopenssl #3886 - benjamin.peterson * Make use of METH_O and METH_NOARGS where possible. - georg.brandl * Use Py_UnpackTuple instead of PyArg_ParseTuple. - georg.brandl * Improved the docstrings. - gregory.p.smith 20060408a: * Initial stand alone release.