In 1994, Roger Schlafly, trying to showcase the flaws of US Patents, patented two primes. These primes were used to improve modular division thus saving a lot of time in the Diffie-Hellman method for public-key encryption – critical to secure lots of Internet services at the time pic.twitter.com/TM5d5MC0jG
— Fermat's Library (@fermatslibrary) December 10, 2018