rwg> PPS, did RSA200 protect any squeamish ossifrage type sentiments? I don't know of any. At one time RSA was offering prizes for each 10-digit advance, and they had a list up to 500 digits or so. They restructured the prizes, and I think the prize for RSA200 was withdrawn. But I'm repeating third hand "information". Season to taste. Rich rcs@cs.arizona.edu