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Date: Sat, 4 Jul 2015 21:09:08 +0300
From: Solar Designer <>
Subject: yescrypt in PHP and Ruby


Taylor Hornby (@DefuseSec) is working on implementing yescrypt in
several languages, and so far has produced initial implementations in
PHP and Ruby:

These are not pretty and they are not fast.  They also highlight
limitations of those languages as it relates to dealing with 64-bit

Yet these implementations help improve the confidence there are no C
artifacts affecting the test vectors, etc.  No such surprises so far.

This project also helps identify omissions in the current yescrypt
spec, and will hopefully result in a comprehensive and cleaner spec.


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