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Message-ID: <7611c0a304457774d28c4fc67efe9175@smtp.hushmail.com>
Date: Sat, 13 Jul 2013 18:57:52 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: password length in pbkdf2_hmac_sha1_unsplit_kernel.cl
On 13 Jul, 2013, at 17:04 , marcus.desto <marcus.desto@...pl> wrote:
> what was the password length limit in pbkdf2_hmac_sha1_unsplit_kernel.cl?
The maximum supported is 64. Actually, for a HMAC of keys longer than 64 octets you'd just pass the SHA1 of the key instead, so if the format does that in set_key(), you'd support *any* length. We could do that inital SHA1 on GPU as well but I don't think it would make much difference.
magnum
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