[144475] in cryptography@c2.net mail archive
Re: Warning! New cryptographic modes!
daemon@ATHENA.MIT.EDU (Alexander Klimov)
Sun May 24 14:43:58 2009
Date: Sun, 24 May 2009 13:41:11 +0300 (IDT)
From: Alexander Klimov <alserkli@inbox.ru>
To: Cryptography List <cryptography@metzdowd.com>
In-Reply-To: <DFEEEC7B-08D8-4AE0-AC14-0F8E951745ED@lrw.com>
On Sun, 10 May 2009, Jerry Leichter wrote:
> The problem has to do with using rsync to maintain backups of
> directories. rsync tries to transfer a minimum of data by sending
> only the differences between new and old versions of files.
> Suppose, however, that I want to keep my backup "in the cloud", and
> I don't want to expose my data. That is, what I really want to
> store is encrypted versions of my files - and I don't want the
> server to be able to decrypt, even as part of the transfer.
IMO the simplest solution is to rsync a file container encrypted by
TrueCrypt (each block is separately encrypted by XTS).
--
Regards,
ASK
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