Reliability is an essential feature of any effective communication. This course builds on the information security overview presented in INTE1120 Introduction to Information Security and INTE1122 Case Studies. It introduces a rigorous study of error-correction coding. The use of the correct coding scheme is imperative in ensuring integrity, which is an information security primitive. Error correcting and detecting codes used for computers and communications will be studied. Topics covered in this course include mathematical background, the communication channel, Reed-Muller Codes, parity check codes, cyclic codes, Hamming codes and compression coding.