[145344] in cryptography@c2.net mail archive
Re: Encryption and authentication modes
daemon@ATHENA.MIT.EDU (markus reichelt)
Thu Jul 15 13:35:17 2010
Date: Thu, 15 Jul 2010 17:32:04 +0200
From: markus reichelt <ml@mareichelt.com>
To: Cryptography List <cryptography@metzdowd.com>
Mail-Followup-To: Cryptography List <cryptography@metzdowd.com>
In-Reply-To: <26C62A0E-A72F-4BA0-9D5C-FA9B1ED7E564@mac.com>
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* james hughes <hughejp@mac.com> wrote:
> If there is no room for or an integrity field, you can look at
> XTS-AES.
> http://csrc.nist.gov/publications/nistpubs/800-38E/nist-sp-800-38E.pdf
A not so well-known statement of said PDF certainly is the following,
especially in light of today's storage device capacities:
"The length of the data unit for any instance of an implementation of
XTS-AES shall not exceed 2^20 AES blocks."
It seems to have made it smartly into openbsd, at least this
commit-info hints it:
http://marc.info/?l=3Dopenbsd-cvs&m=3D121341266715025
--=20
left blank, right bald
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