Math Encounters: "From Caesar to Cyber: A Journey Through Cryptography" with Jim Kraft, Nov. 5, 2025

Math Encounters: "From Caesar to Cyber: A Journey Through Cryptography" featuring Jim Kraft How does “Attack at dawn” become “Buubdl bu ebxo”? From Caesar’s shift cipher to the algorithms guarding your bank logins, codes span the trivial to the nearly unbreakable. Mathematician Jim Kraft charts that journey, echoing Bruce Schneier’s line that there are “two kinds of cryptography in this world: cryptography that will stop your younger siblings from reading your files, and cryptography that will stop major governments from reading your files.” Come see where history’s favorite secrets land on that spectrum, and why true secrecy is never simple. Special introduction by Leon Tatevossian, Adjunct Professor (Quantitative Finance), NYU; Lecturer (Quantitative Finance), Columbia University. Math Encounters is MoMath’s popular free public presentation series celebrating the spectacular world of mathematics. This program is funded by Simons Foundation International and administered by the Simons Foundation’s Science, Society & Culture division.