From: Arno Wagner <arno@wagner.name>
To: Dmitry Dmitry <dimanne@gmail.com>
Cc: dm-crypt@saout.de
Subject: [dm-crypt] Re: Argon2 limits choice
Date: Mon, 4 Oct 2021 02:28:18 +0200 [thread overview]
Message-ID: <20211004002818.GC25408@tansi.org> (raw)
In-Reply-To: <CAC9D8R6jHQr_fKco1PjGvcJg8rLxHFrPNGxBiNzncj5sONJcWg@mail.gmail.com>
Hi,
I do not think these limits are "conservative".
You gain very little by raising them. Better just
use a good passphrase.
Regards,
Arno
On Mon, Oct 04, 2021 at 00:30:13 CEST, Dmitry Dmitry wrote:
> Hi,
> I am wondering if there are objective reasons for such conservative
> **upper** **hard** limits for Argon?
> } else if (!strcmp(kdf, "argon2i") || !strcmp(kdf, "argon2id")) {
> limits->max_iterations = UINT32_MAX;
> limits->max_memory = 4*1024*1024; /* 4GiB */
> limits->max_parallel = 4;
> }
> (well, apart from UINT32_MAX, which makes sense, kind of)
> Just to reiterate, I am not talking about minimum values, or default
> values. The question is about upper limits.
> P.S.
> I was personally thinking about using ~32 threads and ~128GiB of RAM as
> KDF parameters...
> --
> Dmitry
> Sent from my gmail
> GPG/PGP Key fingerprint = 1670 0E8A 4AEC 179D 326F BECE 8B33 360D 8717
> 9711
> _______________________________________________
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--
Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@wagner.name
GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718
----
A good decision is based on knowledge and not on numbers. -- Plato
If it's in the news, don't worry about it. The very definition of
"news" is "something that hardly ever happens." -- Bruce Schneier
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next prev parent reply other threads:[~2021-10-04 0:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-03 22:30 [dm-crypt] Argon2 limits choice Dmitry Dmitry
2021-10-04 0:28 ` Arno Wagner [this message]
2021-10-04 6:25 ` [dm-crypt] " Milan Broz
2021-10-04 6:29 ` Dmitry Dmitry
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