Video lectures for Alfred Menezes's introductory course on the fundamental building blocks used in cryptography. Topics covered: MAC schemes, security definition, ideal MAC schemes, generic attack, GSM security Lecture playlist: Course web page: The slides are available on the course web page. Other cryptography courses: Slides 00:00 Introduction 01:04 Slide 163: Definition 02:04 Slide 164: Applications of MAC schemes 04:48 Slide 165: Security definition 07:20 Slide 166: Breaking a MAC scheme 07:55 Slide 167: Ideal MAC scheme 08:27 Slide 168: Generic attacks on MAC schemes 09:25 Slide 169: Generic attacks (2) 11:25 Slide 170: GSM 12:19 Slide 171: GSM security objectives 13:11 Slide 172: GSM description 15:06 Slide 173: GSM description (2) 17:29 Slide 174: GSM security 19:30 Coming up