mersenneforum.org Fixup Old Primo Certificate?
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 2012-05-27, 18:53 #1 wblipp     "William" May 2003 New Haven 236110 Posts Fixup Old Primo Certificate? Attempting to put the primality proof for (10708^3061-1)/10707 into the factordb requires the Primo Certificate for the P3092. When uploaded to the factordb, this certificate fails with the message "No number found in file." Comparing it to other certificates that loaded OK, I see that this was generated with an older version of Primo, Version 1.1.0. I see that this lists the number as N = , and then the decimal expansion spread over many lines with "\", whereas newer certificates have N$= and the hexadecimal expansion on a single line. I see other differences - the new certificate has Type= lines. While both certificates have A and B lines, the same format differences as described for the N line applies. Does anybody know how to hand edit this certificate to make it acceptable to the factordb version of Primo? I don't mind diddling with it if it is likely to work, but I don't want to waste time if we know it isn't convertible. 2012-05-28, 03:16 #2 WraithX Mar 2006 11×43 Posts Quote:  Originally Posted by wblipp When uploaded to the factordb, this certificate fails with the message "No number found in file." Comparing it to other certificates that loaded OK, I see that this was generated with an older version of Primo, Version 1.1.0. I see that this lists the number as N = , and then the decimal expansion spread over many lines with "\", whereas newer certificates have N$= and the hexadecimal expansion on a single line.
Hmmm, I wrote the verifier that is used by the factordb. I think I can update the verifier to accept this new (old?) format. I didn't realize there was more than one format out there. I wonder if there are others that we haven't seen yet. I'll be busy for the next few days, but I should be able to get this working by next weekend. I'll report back here when I make some progress on this.

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