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JH hash function for PHP Version 0.1 JH is a hash function which was submitted to the NIST hash competition (2008--2012) in October 2008 and selected as one of the five finalists. There are four JH hash algorithms, namely, JH-224, JH-256, JH-384 and JH-512, constructed from the same compression function. The author of this extension was in no way involved in the development of the JH hash function. The hash source code was taken directly from NIST submission package with a few minor variable name changes so that it would play nice with PHP. See the CREDITS section for more details. = INSTALLATION = You'll need to have the PHP 5 development package and a working build environment to compile this module. To compile and install: phpize ./configure --enable-jh make sudo make install Then add the following to your php.ini file: extension=jh.so = USAGE = Function Description: string jh_hash(string $string [, int bit_length = 512]) Example: // Build a base-64 encoded hash $hash = base64_encode(jh_hash('Hello, world.')); = CREDITS = JH hash function by Hongjun Wu PHP extension written by Bryan C. Geraghty <firstname.lastname@example.org> For more details, see: http://www3.ntu.edu.sg/home/wuhj/research/jh/ http://csrc.nist.gov/groups/ST/hash/sha-3/Round3/submissions_rnd3.html = LICENSE = The SHA-3 Submission Requirements states: "Each submitted algorithm must be available worldwide on a royalty free basis during the period of the hash function competition." If the algorithm is selected as the winner of the competition, the following applies: "an irrevocable nonexclusive royalty-free license to practice the referenced algorithm, reference implementation or the optimized implementations" If the algorithm is not selected as the winner, the license will be determined by the team.