cypher breaking and genetic algorithms

[Peter Baumbach]

Scott Collins writes:
>[...]
> between.  Being one bit off in the key should give a totally fruitless
> result.  GA's don't help much with such ciphers.
>[...]

What if the GA "knew" the plain-text, the cyphertext, and the
encryption algorithm, and was searching for a decryption algorithm
without the encryption key? Would that be for fruitful?

Peter Baumbach
baumbach at atmel.com