From: iang@cs.berkeley.edu (Ian Goldberg)
Date: Fri, 19 Jul 1996 03:02:08 +0800
To: cypherpunks@toad.com
Subject: Re: DES & IDEA built right into the Linux kernel...
In-Reply-To: <4se8do$dlp@abraham.cs.berkeley.edu>
Message-ID: <4slk11$9oi@abraham.cs.berkeley.edu>
MIME-Version: 1.0
Content-Type: text/plain


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In article <Pine.LNX.3.94.960716192252.5644C-100000@switch.sp.org>,
The Deviant  <deviant@pooh-corner.com> wrote:
>On 15 Jul 1996, Ian Goldberg wrote:
>
>> Date: 15 Jul 1996 13:07:20 -0700
>> From: Ian Goldberg <iang@cs.berkeley.edu>
>> To: cypherpunks@toad.com
>> Newsgroups: isaac.lists.cypherpunks
>> Subject: Re: DES & IDEA built right into the Linux kernel...
>> 
>> 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
>
>Hrmm.. Sounds interesting... how long till your patch is done?
>
> --Deviant
>

Well, it seems encryption now works, and stego works, but stego'ing an
encrypted filesystem doesn't. :-(   I'll keep looking at it...

   - Ian

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