[Fwd: NIST considering submissions of block cipher modes]

[Arshad Noor <arshad.noor@strongauth.com>]

FYI.

-------- Original Message --------
Subject: NIST considering submissions of block cipher modes
Date: Mon, 09 Jun 2008 10:48:40 -0400
From: Perry E. Metzger <perry@piermont.com>
To: cryptography@metzdowd.com


Forwarded message:

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From: Morris Dworkin <dworkin@nist.gov>
To: EncryptionModes@nist.gov
Subject: NIST considering submissions of block cipher modes
Date: Sun, 08 Jun 2008 19:28:06 -0400
Message-ID: <484C6B06.3080402@nist.gov>

FYI, in recent months, NIST received submissions for three new modes of
operation for the AES, one of which NIST is now proposing to approve for
government use.

In particular, on Thursday NIST initiated a 90-day period of public
comment  (ending September 3, 2008), on the XTS encryption mode of the
AES, submitted by the P1619 Task Group of the IEEE Security in Storage
Working Group.  NIST proposes to approve the algorithm by reference to
IEEE Stnd 1619-2007.  For additional information, see the Request for
Public Comment on XTS, at
http://www.csrc.nist.gov/groups/ST/documents/Request-for-Public-Comment-on_XTS.pdf 

.  The request includes a link to the relevant extract of IEEE Stnd
1619, which IEEE has agreed to make available free of charge during the
public comment period.

NIST also would welcome public input on whether to propose either of the
other two modes for approval:
    1.  Synthetic IV (SIV), an authenticated encryption mode submitted by
Rogaway and Shrimpton, and
    2.  Feistel Finite Set Encryption Mode (FFSEM), submitted by Spies.
Both submissions are available on the "Modes Development" page of the
NIST website,
http://csrc.nist.gov/groups/ST/toolkit/BCM/modes_development.html.
Comments may be submitted to EncryptionModes@nist.gov; please identify
the mode(s) somewhere in the subject line.

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