DES & IDEA built right into the Linux kernel...

Ian Goldberg iang at cs.berkeley.edu
Tue Jul 16 03:23:19 PDT 1996


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In article <199607130507.WAA25103 at myriad>,
Anonymous <nobody at mockingbird.alias.net> wrote:
>> Nicholas Leon <nicholas at binary9.net> has created tools that allow DES
>> and IDEA encryption at the device level for the Linux kernel.  Some of
>> the patches are in the 2.0.4 kernel, and the rest can be found at
>>
>>     http://www.binary9.net/nicholas/linuxkernel/patches/
>
>
>Yep, you can mount encrypted files or partitions as filesystems. (sorta
>like securedrive/securedevice for messydos.)  Nifty stuff...

Except that last I checked (2.0.6) it was completely insecure.  The
DES-encrypted filesystem ignored your password and always used a key of
all 0's (which is a weak key in DES, to boot).  I've been touching it up
to do DES and IDEA _right_ (CBC mode within each block, IV based on block
number), and plan to put in some simple stego as well.

   - Ian

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