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Re: [TLS] About encrypting SNI

Paul Lambert <paul@marvell.com> Thu, 17 April 2014 02:28 UTC

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From: Paul Lambert <paul@marvell.com>
To: James Cloos <cloos@jhcloos.com>, "tls@ietf.org" <tls@ietf.org>
Date: Wed, 16 Apr 2014 19:29:09 -0700
Thread-Topic: [TLS] About encrypting SNI
Thread-Index: Ac9Z5MBjbk/xnlQIQe+JtE5/srSHYw==
Message-ID: <CF748A15.39037%paul@marvell.com>
References: <2A0EFB9C05D0164E98F19BB0AF3708C7120A04ED40@USMBX1.msg.corp.akamai.com> <534C3D5A.3020406@fifthhorseman.net> <474FAE5F-DE7D-4140-931E-409325168487@akamai.com> <D2CB0B72-A548-414C-A926-A9AA45B962DA@gmail.com> <2A0EFB9C05D0164E98F19BB0AF3708C7120B490162@USMBX1.msg.corp.akamai.com> <CACsn0cmusUc3Rsb2Wof+dn0PEg3P0bPC3ZdJ75b9kkZ5LDGu_A@mail.gmail.com> <534DB18A.4060408@mit.edu> <m2ppkhl08c.fsf@usma1mc-0csx92.kendall.corp.akamai.com> <CALCETrXuvA7XAu7O4QVGe1Ktzo8wfQq88j2g44bfc=MGYzY9BQ@mail.gmail.com> <ADBC94F9-0EBB-4F50-B49D-EDAFF8AD9313@akamai.com> <CALCETrUch98b+4qxzkWiy6Hsyg5VBsks9DHv2J1jX08LC48tnQ@mail.gmail.com> <m361m9p1kp.fsf@carbon.jhcloos.org>
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Archived-At: http://mailarchive.ietf.org/arch/msg/tls/RdpR5kJTjjTLsoKmDu-STQ1DqKc
Cc: Andy Lutomirski <luto@amacapital.net>
Subject: Re: [TLS] About encrypting SNI
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On 4/16/14, 11:32 AM, "James Cloos" <cloos@jhcloos.com> wrote:

>>>>>> "AL" == Andy Lutomirski <luto@amacapital.net> writes:
>
>AL> US-governement-preferred choice: ECIES/Elligator Squared on P-256,
>AL> with AES-128-GCM.
>
>DJB's parallel paper (http://cr.yp.to/snuffle/bruteforce-20050425.pdf)
>implies all should s/AES-128/AES-256/g.  Especialy when there is a
>significant quantity of traffic available for probabilistic attacks.
These type of parallel HW attacks are facilitated by CCM/GCM modes.
AES-SIV would not be easily mapped into such a attack.

Paul


>
>(I presume those who like NIST crypto will be happy with
>AES256-GCM-SHA384.)
>
>-JimC
>--
>James Cloos <cloos@jhcloos.com>         OpenPGP: 1024D/ED7DAEA6
>
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>TLS@ietf.org
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