Stupid certificate tricks
Not that the author claimed it to be safe, but this probably isn't secure:https://rjlipton.wordpress.com/2012/03/01/do-gaps-between-pr...The technique relies on starting a search for one of the prime factors of the modulus at a particular (large) place, although if I understand the code right, not a place related to the other factor, so maybe it's not devastating, or who knows. That article is still very worth reading. :)