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From: iang@cs.berkeley.edu (Ian Goldberg)
Newsgroups: isaac.lists.cypherpunks
Subject: Re: DES & IDEA built right into the Linux kernel...
Date: 15 Jul 1996 13:07:20 -0700
Organization: ISAAC Group, UC Berkeley
Lines: 31
Distribution: isaac
Message-ID: <4se8do$dlp@abraham.cs.berkeley.edu>
References: <m0ue5GK-000HE6C@hackvan.com> <199607130507.WAA25103@myriad>
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In article <199607130507.WAA25103@myriad>,
Anonymous <nobody@mockingbird.alias.net> wrote:
>> Nicholas Leon <nicholas@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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