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Message-ID: <20150726230127.GB1702@openwall.com>
Date: Mon, 27 Jul 2015 01:01:27 +0200
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: PHC: Lyra2 vs yescrypt benchmarks 2
On Sun, Jul 26, 2015 at 10:17:43PM +0200, magnum wrote:
> FWIW we already have a feature in Jumbo where (IIRC) a BENCHMARK_LENGTH
> of eg. 1000 means actual benchmark 0 and scrambled passwords. It was
> added for formats that can reject early during crypt_all() so benchmark
> speeds doesn't get deflated from using test vectors for benchmarking
> (they would otherwise always take the slow path).
>
> I think it currently just xor's first character with something - maybe
> Agnieszka could replace that with her code, and we'd use it in Jumbo.
>
> The current code has a twist: It un-scrambles the test vectors
> afterwards. I'm not sure that's needed.
Oh, this sounds good. I agree it'd be best to have this functionality
merged.
Alexander
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