Brute force attacks

["joe harlin" <joeharlin () hotmail com>]

Slightly off pure FW topics, but still germane, I have a question about 
brute-force attacks.

Using DES as en example, a brute force attack has 2(56) possible keys.

The question I have is how do I check my output to validate that I have 
the correct key?

I start with the first possible key and get output.  Now that I have 
this output 1 of 2(56), how do I determine if this output is meaningful 
or gibberish??

Thanks!



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