It's Whirlpool (http://en.wikipedia.org/wiki/Whirlpool_(cryptography) http://en.wikipedia.org/wiki/Whirlpool_(cryptography) ) which has common libraries in PHP

It's Whirlpool (http://en.wikipedia.org/wiki/Whirlpool_(cryptography) http://en.wikipedia.org/wiki/Whirlpool_(cryptography) ) which has common libraries in PHP & Ruby and accepted in a couple of international standards. I think it's better to replace "lesser known" with "uncommonly used". (Also I messed up and it's a 512-bit hash, not 1024 like I said above.)