My CS Home Page.
The Joy of Factoring, a new factoring book. The book cover. Some corrections and comments.
Cryptanalysis of Number Theoretic Ciphers
Sums of Squares of Integers
The Cunningham Project
CS 426 Lecture 22
CS 426 Lecture 22 watermark
CERIAS Security Seminar
Mersenne Primes slides from a lecture on November 18, 2008.
The Invention of Public Key Cryptography slides from a lecture on October 21, 2008.
The Number Theory Foundation
The Fermat Prime Divisors
The Saturday Hike
Photo of Wagstaff and the factorization of (3349 - 1)/2
Photo by Dave Umberger.
News story about factoring (3349 - 1)/2
Some elementary remarks about why factoring Cunningham numbers is important and interesting. Also shown there is the graph of the distribution function of the fractional parts of the Bernoulli numbers from the Erdos-Wagstaff paper.
Send e-mail to Sam Wagstaff