


Lecture 20220217. Using the Fundamental Theorem of Arithmetic to answer questions like how many divisors a number has. Karatsuba multiplication. Writing and solving recurrence relations. Binary…


ECS020 Lecture 20220201. Reviewing definitions. Equivalence relations and the idea that they induce partitions. Three ways of conceptualizing integers mod n. Functions. Computing functions that…


Review of strings and languages. Closing a set of languages using some operators. Regular languages. Examples. BYTE, WORD32, and WORD64 as languages computers "like", and how we…


Lecture 7, on January 19, 2022 of ECS 235B, Foundations of Computer and Information Security


Videos and all other materials are copyright 2021 Matthias Köppe and shared as Open Educational Resources subject to the Creative Commons AttributionShareAlike 3.0 Unported (CC BYSA 3.0)…




This is the video of the third lecture. It's crude as I made it from my laptop, as the room has no video recording. Just like before..


ECS 153 Spring 2021. Computer Security. This is the first discussion section of the week of April 28. The video begins at 5:43 from the beginning.


Foundations of Computer and Information Security. This covers lattices and the lattice presentation of the BellLaPadula model The class starts at 8:48 into the video.


Modeling drug concentration Finding recurrence relations Fixed points of sequences
