Instructions and Programs CS 154: Computer Architecture Lecture #7 Winter 2020 Ziad Matni, Ph.D. Dept. of Computer Science, UCSB Administrative •I got nada 1/29/20 Matni, CS154, Wi20 2 Lecture Outline • Branch and Jump Addressing • Parallelism and Synchronization • Going from File to Machine Code • Relative Performance Comparisons 1/29/20 Matni, CS154, Wi20 3 […]
3/23/2020 @2020 New York University Tandon 247 School of Engineering An Example Check the necessary conditions at x (1, 0)T * of the constrained minimization problem: 24 subject to minx1 1.5 x2 0.5 x 1x x 0, 12 1x x 0, 12 1x x 0, 12 1x x 0. 12 Answer 3/23/2020 @2020 New
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Goal: A Financial Engineering Problem How to use LP to model multi‐period cash management in financial firms? 2/24/2020 @2020 New York University Tandon 123 School of Engineering Problem Setting: A firm, named Firm X, must determine investment strategy for the firm during the next 3 years. At present (time 0), $100K is available for investment.
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Objectives Unconstrained Optimization • Review of necessary or sufficient conditions. • Newton’s method and its application to solving the minimization problem. • Search techniques for numerical solutions. 3/2/2020 @2020 New York University Tandon 173 School of Engineering Problem Statement Find optimality conditions, and algorithms, for the minimization problem min f (x) , xn 3/2/2020 @2020
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Computer Security Coursework Exercise 2 February 16, 2021 In this coursework we will touch upon a number of security-related topics, namely encrypting and decrypting with GPG, spoofing the sender of an email and performing a MitM attack. The deadline is 8 March 2020, 16:00. 1 Asymmetric Encryption with GPG In this section you will learn
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cse130 https://ucsd-cse130.github.io/wi21/lectures/01-lambda.html Lambda Calculus Your Favorite Language Probably has lots of features: Assignment (x = x + 1) Booleans, integers, characters, strings, … Conditionals Loops return, break, continue Functions Recursion References / pointers Objects and classes Inheritance … Which ones can we do without? What is the smallest universal language? 1 of 69 1/7/21, 8:59
cse130 https://ucsd-cse130.github.io/wi21/lectures/01-lambda.html win Appeal Conditionals Loops as 1 of 68 1/4/21, 8:40 PM Lambda Calculus Have youheardof 1 Your Favorite Language Probably has lots of features: 15hr5 Assignment (x = x + 1) O E8 Booleans, integers, characters, strings, … return, break, continue Functions ROI Recursion References / pointers Objects and classes Inheritance … Which
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CSE 130 Final, Spring 2018 Nadia Polikarpova June 11, 2018 NAME ____________________________________ SID ____________________________________ • You have 180 minutes to complete this exam. • Where limits are given, write no more than the amount specified. • You may refer to a double-sided cheat sheet, but no electronic materials. • Questions marked with * are difficult;
Cryptography Basics – Key exchange Review Integrity: prevent Mallory from tampering v’ == MACk(m’) k Bob k Bob p := Dk(c) ◦ Message Authentication Code ◦ Hashes -> HMAC ◦ Use: SHA2, SHA3 k m, v:= MAC (m) k m’, v’ Confidentiality: prevent eavesdropper (Eve) from learning the (plaintext) message ◦ Streamciphers ◦ AES-CTR, ChaCha20
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Cryptography basics – Integrity: Hashes and MACs ECEN 4133 Jan 19, 2021 Alice and Bob Alice wants to send message m to Bob ◦ Can’t fully trust the messenger or network carrying the message ◦ Want to be sure what Bob receives is actually what Alice sent ✉✉ Alice Mallory Bob Threat model: ◦ Mallory
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