David Evans http://www.cs.virginia.edu/~evans Lecture 10: The Return of Paco Background just got here last week finished degree at MIT week before Philosophy of advising students don’t come to grad school to implement someone else’s idea can get paid more to do that in industry learn to be a researcher important part of that is deciding what problems and ideas are worth spending time on grad students should have their own project looking for students who can come up with their own ideas for research will take good students interested in things I’m interested in – systems, programming languages & compilers, security rest of talk – give you a flavor of the kinds of things I am interested in meant to give you ideas (hopefully even inspiration!) but not meant to suggest what you should work on CS551: Security and Privacy University of Virginia Computer Science David Evans http://www.cs.virginia.edu/~evans

University of Virginia CS 551 Menu AES Announcement Paco Return PS2 Today’s Manifest: on the web Due Wednesday: Project Proposals 16 January 2019 University of Virginia CS 551

Choosing AES Serpent 62 69 3.56 341 KB MARS 23 34 1.90 85 KB RC6 15 43 (From Lecture 5) Choosing AES Cipher Speed (32) Speed (8) Safety Factor Simplicity (code size) Serpent 62 69 3.56 341 KB MARS 23 34 1.90 85 KB RC6 15 43 1.18 48 KB Rijndael 18 20 1.33 98 KB Twofish 16 2.67 104 KB (cycles/byte encrypt) 16 January 2019 University of Virginia CS 551

NIST selects.... *** RIJNDAEL *** Selected by NIST for the Proposed AES October 2, 2000 [Note: Apparently, one of our NIST servers was down for while today, making the webcast inaccessible. It also has led to a delay in these AES pages being updated. We will try to make the "archived" webcast available as soon as possible.] Press Release (available later today, Oct. 2)   16 January 2019 University of Virginia CS 551

University of Virginia CS 551 Paco 16 January 2019 University of Virginia CS 551