Finding encrytion algorithm

[Ryan Sorensen]

* Mike Rosing <eresrch at eskimo.com> [020711]:
> Depends on how they got the source.  They may know it's one of 5
> possible choices because of the person who sent (or received) it.
> If it's just found on a disk in a garbage dump with no connections
> to anyone, it's a bit tougher.  But every algorithm has some statistical
> signature and if you've got enough cipher text you can compare that
> signature with known algorithms to home in on fewer choices.
> 
Do you have any references for this? A quick google search was less than
revealing.

Thanks in advance.

> Patience, persistence, truth,
> Dr. mike

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