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Date: Sat, 17 Oct 2015 12:25:14 +0000
From: Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: [PHC] Re: Argon2 PHC release...

Another question (sorry): why just using blake2 ref code rather than the
version supporting SIMD instructions? for consistency of benchmarks?

Thanks!

On Sat, Oct 17, 2015 at 8:05 AM Jean-Philippe Aumasson <
jeanphilippe.aumasson@...il.com> wrote:

> Recommended parameters section says
> "If you do not know the difference between them or you consider
> side-channel attacks as viable threat, choose Argon2i."
> and I think it's a good recommendation; safer by default.
>
> On Sat, Oct 17, 2015 at 1:29 AM Dmitry Khovratovich <
> khovratovich@...il.com> wrote:
>
>> The spec lists 2d and 2i as primary ones, any suggestions to modify?
>>
>> Sent from my iPhone
>>
>> On 17 Oct 2015, at 00:30, Jean-Philippe Aumasson <
>> jeanphilippe.aumasson@...il.com> wrote:
>>
>> The simplified API hash() (formerly PHS()) now defaults to Argon2i, as
>> used in
>> https://github.com/P-H-C/phc-winner-argon2/blob/master/examples/hash.c
>>
>> 4 instances in the final version is too much, we should have only 2: i
>> and d, or some variants thereof.
>>
>> On Fri, Oct 16, 2015 at 11:04 PM Jean-Philippe Aumasson <
>> jeanphilippe.aumasson@...il.com> wrote:
>>
>>> Samuel and I did a number of fixes to
>>> https://github.com/P-H-C/phc-winner-argon2. If you clone this repo and
>>> run ./test.sh you should get OKs for all the tests. Or not; please let us
>>> know then.
>>>
>>> I've started a basic README at
>>> https://github.com/P-H-C/phc-winner-argon2, which will contain usage
>>> instructions (copying from https://github.com/khovratovich/Argon2). Any
>>> suggestion or contribution welcome :-)
>>>
>>>
>>>
>>> On Fri, Oct 16, 2015 at 4:09 PM Jean-Philippe Aumasson <
>>> jeanphilippe.aumasson@...il.com> wrote:
>>>
>>>> Did a couple more tweaks, including a usage() function
>>>> https://github.com/P-H-C/phc-winner-argon2/blob/master/src/argon2-test.c printed
>>>> when no argument is given. Still a lot to do here, and ideally we should
>>>> use getopt for this rather than manual parsing.
>>>>
>>>> On Fri, Oct 16, 2015 at 10:58 AM Jean-Philippe Aumasson <
>>>> jeanphilippe.aumasson@...il.com> wrote:
>>>>
>>>>> Working on a simpler code package, current version posted at
>>>>> https://github.com/P-H-C/phc-winner-argon2
>>>>>
>>>>> So far reorganized and cleaned up the whole structure, keeping C only
>>>>> and not C++, ported a minor change to the blake2b().
>>>>>
>>>>> With the Argon2 designers we'll improve the test suite and will make
>>>>> the argon2 command-line interface more user-friendly.
>>>>>
>>>>> Comments and pull requests welcome :-)
>>>>>
>>>>>

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