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Date: Thu, 3 Apr 2014 02:48:30 -0400
From: Bill Cox <>
Subject: Re: Yarn issues

On Thu, Apr 3, 2014 at 2:17 AM, Bill Cox <> wrote:

> If I am not mistaken, he has input collisions on both salt, and a
> parameter called "pers".  Both are padded with 0's to 8 bytes, and
> XOR-ed onto Blake2b state, so adding additional 0's up to a total
> length of 8 doesn't change the output.  The password is free of such
> collisions, so this isn't a critical issue.  He also has a spelling
> error on the last line of his README :-)
> Bill



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