From: iang@cs.berkeley.edu (Ian Goldberg)
Date: Tue, 16 Jul 1996 18:23:19 +0800
To: cypherpunks@toad.com
Subject: Re: DES & IDEA built right into the Linux kernel...
In-Reply-To: <m0ue5GK-000HE6C@hackvan.com>
Message-ID: <4se8do$dlp@abraham.cs.berkeley.edu>
MIME-Version: 1.0
Content-Type: text/plain


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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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