This is a graduate-level introduction to cryptography, with an emphasis on definitions are proofs of security. The viewpoint of the course is "theory applied to practice" in that we attempt to treat topics of direct practical value. Topics covered include: blockciphers, pseudorandom functions and permutations, symmetric-key encryption and modes of operation, hash functions, message authentication codes, authenticated encryption and TLS/SSL, computational algebra and number theory, public-key encryption, digital signatures, and public-key infrastructures.

This seminar will explore how college students' health and well-being is influenced, challenged or improved by campus culture, individual decisions, social influence, institutional policies and the built environment. We will explore UMass Amherst and the surrounding community as we apply a public health framework to understand health.

Introduction to the American constitution as law. The importance of the text and the traditions of interpretation. The courts, congress, and the presidency. Also local power, the bill of rights, and the fourteenth amendment. (Gen.Ed. SB)