linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Tomer Ashur <tomer.ashur@esat.kuleuven.be>
To: Paul Crowley <paulcrowley@google.com>, Jason@zx2c4.com
Cc: ebiggers@kernel.org, linux-crypto@vger.kernel.org,
	linux-fscrypt@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Greg Kaiser <gkaiser@google.com>,
	Michael Halcrow <mhalcrow@google.com>,
	samuel.c.p.neves@gmail.com
Subject: Re: [RFC PATCH v2 00/12] crypto: Adiantum support
Date: Mon, 22 Oct 2018 13:20:51 +0200	[thread overview]
Message-ID: <ebd9d96e-4a2c-528d-b8e8-67907f2a8be0@esat.kuleuven.be> (raw)
In-Reply-To: <2395454e-a0dc-408f-4138-9d15ab5f20b8@esat.kuleuven.be>


[-- Attachment #1.1: Type: text/plain, Size: 1687 bytes --]

> On 19-Oct-18 8:19 PM, Paul Crowley wrote:
>> I would prefer not to wait. Unlike a new primitive whose strength can
>> only be known through attempts at cryptanalysis, Adiantum is a
>> construction based on
>> well-understood and trusted primitives; it is secure if the proof
>> accompanying it is correct. Given that (outside competitions or
>> standardization efforts) no-one ever issues public statements that
>> they think algorithms or proofs are good, what I'm expecting from
>> academia is silence :) The most we could hope for would be getting the
>> paper accepted at a conference, and we're pursuing that but there's a
>> good chance that won't happen simply because it's not very novel. It
>> basically takes existing ideas and applies them using a stream cipher
>> instead of a block cipher, and a faster hashing mode; it's also a
>> small update from HPolyC. I've had some private feedback that the
>> proof seems correct, and that's all I'm expecting to get.
>
I tend to agree with Paul on this point. This is a place where academia
needs to improve. An attempt to do so is the Real World Crypto
conference (RWC; https://rwc.iacr.org/2019/), but the deadline for
submissions was October 1st. For HpolyC I asked a few people to take a
look at the construction and the consensus was that it seems secure but
that the proof style makes it hard to verify. I haven't had the time yet
to read the Adiantum paper (and I'm not a provable security person
anyway) but I suppose Paul took the comments he received on this into
account and that's the best we can hope for. Academia simply moves in a
different pace and has different incentives.

 Tomer


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

  parent reply	other threads:[~2018-10-22 11:21 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-15 17:54 Eric Biggers
2018-10-15 17:54 ` [RFC PATCH v2 01/12] crypto: chacha20-generic - add HChaCha20 library function Eric Biggers
2018-10-19 14:13   ` Ard Biesheuvel
2018-10-15 17:54 ` [RFC PATCH v2 02/12] crypto: chacha20-generic - add XChaCha20 support Eric Biggers
2018-10-19 14:24   ` Ard Biesheuvel
2018-10-15 17:54 ` [RFC PATCH v2 03/12] crypto: chacha20-generic - refactor to allow varying number of rounds Eric Biggers
2018-10-19 14:25   ` Ard Biesheuvel
2018-10-15 17:54 ` [RFC PATCH v2 04/12] crypto: chacha - add XChaCha12 support Eric Biggers
2018-10-19 14:34   ` Ard Biesheuvel
2018-10-19 18:28     ` Eric Biggers
2018-10-15 17:54 ` [RFC PATCH v2 05/12] crypto: arm/chacha20 - add XChaCha20 support Eric Biggers
2018-10-20  2:29   ` Ard Biesheuvel
2018-10-15 17:54 ` [RFC PATCH v2 06/12] crypto: arm/chacha20 - refactor to allow varying number of rounds Eric Biggers
2018-10-20  3:35   ` Ard Biesheuvel
2018-10-20  5:26     ` Eric Biggers
2018-10-15 17:54 ` [RFC PATCH v2 07/12] crypto: arm/chacha - add XChaCha12 support Eric Biggers
2018-10-20  3:36   ` Ard Biesheuvel
2018-10-15 17:54 ` [RFC PATCH v2 08/12] crypto: poly1305 - add Poly1305 core API Eric Biggers
2018-10-20  3:45   ` Ard Biesheuvel
2018-10-15 17:54 ` [RFC PATCH v2 09/12] crypto: nhpoly1305 - add NHPoly1305 support Eric Biggers
2018-10-20  4:00   ` Ard Biesheuvel
2018-10-20  5:38     ` Eric Biggers
2018-10-20 15:06       ` Ard Biesheuvel
2018-10-22 18:42         ` Eric Biggers
2018-10-22 22:25           ` Ard Biesheuvel
2018-10-22 22:40             ` Eric Biggers
2018-10-22 22:43               ` Ard Biesheuvel
2018-10-15 17:54 ` [RFC PATCH v2 10/12] crypto: arm/nhpoly1305 - add NEON-accelerated NHPoly1305 Eric Biggers
2018-10-20  4:12   ` Ard Biesheuvel
2018-10-20  5:51     ` Eric Biggers
2018-10-20 15:00       ` Ard Biesheuvel
2018-10-15 17:54 ` [RFC PATCH v2 11/12] crypto: adiantum - add Adiantum support Eric Biggers
2018-10-20  4:17   ` Ard Biesheuvel
2018-10-20  7:12     ` Eric Biggers
2018-10-23 10:40       ` Ard Biesheuvel
2018-10-24 22:06         ` Eric Biggers
2018-10-30  8:17           ` Herbert Xu
2018-10-15 17:54 ` [RFC PATCH v2 12/12] fscrypt: " Eric Biggers
2018-10-19 15:58 ` [RFC PATCH v2 00/12] crypto: " Jason A. Donenfeld
2018-10-19 18:19   ` Paul Crowley
2018-10-20  3:24     ` Ard Biesheuvel
2018-10-20  5:22       ` Eric Biggers
     [not found]     ` <2395454e-a0dc-408f-4138-9d15ab5f20b8@esat.kuleuven.be>
2018-10-22 11:20       ` Tomer Ashur [this message]
2018-10-19 19:04   ` Eric Biggers
2018-10-20 10:26     ` Milan Broz
2018-10-20 13:47       ` Jason A. Donenfeld
2018-11-16 21:52       ` Eric Biggers
2018-11-17 10:29         ` Milan Broz
2018-11-19 19:28           ` Eric Biggers
2018-11-19 20:05             ` Milan Broz
2018-11-19 20:30               ` Jason A. Donenfeld
2018-10-21 22:23     ` Eric Biggers
2018-10-21 22:51       ` Jason A. Donenfeld
2018-10-22 17:17         ` Paul Crowley

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=ebd9d96e-4a2c-528d-b8e8-67907f2a8be0@esat.kuleuven.be \
    --to=tomer.ashur@esat.kuleuven.be \
    --cc=Jason@zx2c4.com \
    --cc=ebiggers@kernel.org \
    --cc=gkaiser@google.com \
    --cc=herbert@gondor.apana.org.au \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-crypto@vger.kernel.org \
    --cc=linux-fscrypt@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mhalcrow@google.com \
    --cc=paulcrowley@google.com \
    --cc=samuel.c.p.neves@gmail.com \
    --subject='Re: [RFC PATCH v2 00/12] crypto: Adiantum support' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).