Gives an introduction, with proofs, to the algebra and number theory used in coding and cryptography. Basic problems of coding and cryptography are discussed; prepares students for the more advanced ECEN 5032 and 5682. Recommended prereqs., MATH 3110 and 3140. Same as MATH 5440. Prerequisites: Requires prerequisite course of MATH 3130 or MATH 3135 (minimum grade C-).