[144458] in cryptography@c2.net mail archive
Re: Warning! New cryptographic modes!
daemon@ATHENA.MIT.EDU (Matt Ball)
Thu May 21 17:24:13 2009
In-Reply-To: <C1C5CC6D-BAD1-4D1C-A73B-B5444B55205A@lrw.com>
Date: Mon, 11 May 2009 17:08:52 -0600
From: Matt Ball <matt.ball@ieee.org>
To: Jerry Leichter <leichter@lrw.com>
Cc: Roland Dowdeswell <elric@imrryr.org>, Cryptography <cryptography@metzdowd.com>
On Mon, May 11, 2009 at 2:54 PM, Jerry Leichter <leichter@lrw.com> wrote:
> On May 11, 2009, at 2:16 PM, Roland Dowdeswell wrote:
>
>> On 1241996128 seconds since the Beginning of the UNIX epoch
>> Jerry Leichter wrote:
>> I'm not convinced that a stream cipher is appropriate here because
>> if you change the data then you'll reveal the plaintext.
>
> Well, XOR of old a new plaintext. =A0But point taken.
>
> Sounds like this might actually be an argument for a stream cipher with a
> more sophisticated combiner than XOR. =A0(Every time I've suggested that,=
the
> response has been "That doesn't actually add any strength, so why bother"=
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