[Nottingham] Can't remember the term for a cryptographic technique...

[Danny King]

Thanks for the very fast replies! Martin's MD5 collision seems to be
what I was thinking of but thank you also Joshua for the stenography
link, which is definately in the same subject area.

As for why: purely out of interest. I've been looking into encrypted
filesystems and I went off on somewhat of a tangent thanks to
wikipedia's related articles.

thanks again!

2008/5/28 Joshua Lock <incandescant at gmail.com>:
> On Wed, May 28, 2008 at 9:25 AM, Danny King <dannyking at gmail.com> wrote:
>> Hi all,
>>
>> A bit off topic so I apologise in advance:
>>
>> At the last meeting I was having a conversation with a few people and
>> we briefly touched on cryptography, specifically a certain area of it.
>> I can't for the life of me remember the term used to describe the
>> practice of encrypting a message so that two separate keys provide
>> different plaintexts when used on the same cyphertext i.e.:
>>
>> Alice creates a cyphertext from her secret message and gives Bob key1
>> and Fred key2. Bob uses key1 to decode the true message whilst Fred
>> uses key2 on the same cyphertext to decode a different but still
>> conceivable message.
>>
>> Can anyone help me to remember the name of this practice? I've been
>> googling and wikipeding for an hour with no success!
>
> Hmm, not sure. Sounds a bit like it could be Steganography? What with
> the hidden messages and all.
>
> http://en.wikipedia.org/wiki/Steganography
>
> - J
>
> --
> Joshua Lock
> incandescant at gmail.com
>
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- Danny King of Gleaming Pixel Web Design.

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