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Date: Wed, 12 Mar 2014 07:06:48 +0530
From: Donghoon Chang <>
To: "" <>
Subject: Re: [PHC] TigerPHS paper and code ready for review

One small comment: In 1995 the name Tiger was already used as a hash
algorithm designed by Anderson and Biham. (See the following link.)

- donghoon

2014년 3월 12일 수요일, Jean-Philippe Aumasson<>님이
작성한 메시지:
> You may just call it Tiger, we'll figure out that as a PHC submission
> it's a PHS ;-)
> Well there's already a hash function called Tiger, and there's also a
> Tiger2, so maybe not a good idea:
> On Tue, Mar 11, 2014 at 9:43 PM, Bill Cox <> wrote:
>> Based on a lot of excellent feedback, I've updated TigerKDF, which I'm
>> now calling TigerPHS, for Password Hashing Scheme rather than Key
>> Derivation Function.  The latest version of my paper is at:
>> Code can be viewed/cloned at:
>> I've updated the benchmarks based on Alexander's feedback.
>> After the excellent discussion on PBKDF2 and HKDF, I've switched from
>> PBKDF2-BLAKE2S to HKDF-SHA256 for initial and final key derivation,
>> with Blake2s still used in the memory hashing part.  Every input other
>> than stopMemCost is now hashed in the initial hkdfExtract, conforming
>> to the author's description of how to do a "strongly secure" key
>> derivation.
>> I've reduce the number of "slices" from 16 to 4, as per Solar
>> Designer's recommendation.
>> The paper has been improved as well.
>> Let me know what you think.
>> Thanks,
>> Bill

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