William F. Friedman

William F. Friedman was a pioneering American cryptologist, renowned for his work in deciphering complex codes during World War II and beyond. He founded the National Security Agency's cryptologic research and made significant advancements in code-breaking techniques, helping to protect U.S. military communications and intelligence. Friedman's expertise in linguistics and mathematics enabled him to develop methods for analyzing and breaking foreign ciphers, greatly influencing the field of cryptography. His contributions laid the foundation for modern cryptologic practices used in national security and digital encryption today.