## UConn Math Club

# The Mathematics of Encryption

## Alvaro Lozano-Robledo (University of Connecticut)

### Wednesday, October 4, 2017
5:45 pm

MONT 314

Modern cryptography lies at the intersection of mathematics and computer science, involving number theory, algebra, algorithmic complexity, and potentially quantum mechanics. Many people think of codes in terms of spies, but in the information age, highly mathematical codes are used every day by almost everyone, whether at the bank ATM, at the supermarket, or when you send a text or purchase products online. Here is the same message encrypted in four different ways:

GUVF GNYX VF NZNMVAT

DLGC XYVO GC EKKDGXK

OPGN XWUZ JOKN BGZE J

100 1795 1701 1143 348 100 1521 2275 630 348 1701 1143 348 2343 1391 1701 1693 2343 348 100 1391 348 1272 422 348 1521 2467 1521 1376 1701 1693 2343

In this talk we will give an historical and mathematical tour of cryptography. The talk is also an advertisement for a course (MATH 3094) on the mathematics of encryption that the speaker will teach next semester.

**Comments: **Free pizza and drinks!