Re: which chipher mode is recommended?

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I personally doubt there is any cipher+scheme that is 'save', if you can
get a hand on 16 TB of encrypted data (an thus have enough data for
analysis).
Are you using a hardware raid for those 16TB?
Concerning supported ciphers and modes of operation cat /proc/crypto
should give you a vague idea.
the usual syntax, btw. ist: algorithm-block mode-initialization vector
afaik, so benbi would be a scheme/algorithm for initialization vectors as
ESSIV (i.e.)

Regards

-Sven


On Mon, March 9, 2009 17:29, Hari Sekhon wrote:
> Stefan X wrote:
>> Hi!
>> For years I was thinking the ESSIV cipher mode is supposed to be the
>> preferred mode. Now I  discovered that new cipher modes LRW and XTS
>> exist. Wikipedia provides some background information:
>> http://en.wikipedia.org/wiki/Disk_encryption_theory .
>>
>> It seems that XTS is modern and the way to go but which cipher mode do
>> you recommend? Is XTS also suitable/secure for 1,5 terabyte, while I
>> read it is secure for up to 1 TB only? And what is "benbi" in
>> "aes-lrw-benbi"? Which modes exist at all, how to get a list of
>> supported modes by my system, and which is the default one?
>>
>
> I too would also like to know which cipher is best for very large block
> devices... ie 16TB if anyone has any ideas that would be great. I don't
> like the idea of carving up my 16TB into 16 x 1TB and then gluing it
> back together if I don't have to.
>
> Thanks
>
> -h
>
> --
> Hari Sekhon
> Always open to interesting opportunities
> http://www.linkedin.com/in/harisekhon
>
>
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