Bill,

On Sun, 24 Sep 2006 19:38:26 -0700, William "Chops" Westfield wrote:

>...
> PRNs have lots of advantages in addition to their disadvantages:
> 
> You'll never get the same number twice in a row.

This is also a serious weakness in encryption if this is carried through to the output, in the same way as the famous weakness of Enigma, that it can't 
encrypt a letter to itself.  If this was the case it would give cryptographers an "in" to decryption.

Cheers,


Howard Winter
St.Albans, England


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