PPT-Cryptography CS 555 Week 9:

Number Theory Public Key Crypto Readings Katz and Lindell Chapter 8 B1 B2 1 Spring 2021 Limits of Symmetric Crypto KeyExchange Problem ObiWan and Yoda want to communicate securely. m pm am pm am pm am pm am pm am pm am pm am pm am pm am pm am pm am pm Meal 1 Meal 2 Meal 3 Meal 4 Meal 5 Meal 6 NOTES brPage 3br The Training for LIFE Experience Daily Progress Report ACTUAL Upper Body Muscle Groups Chest Shoulders Back Triceps Bice 897 Special Topics in Cryptography Instructors Ran Canetti and Ron Rivest Lecture 25 PairingBased Cryptography May 5 2004 Scribe Ben Adida 1 Introduction The 64257eld of PairingBased Cryptography has exploded Algorithms. Scott Chappell. What is Cryptography?. Definition: the art of writing or solving codes. Basic Encryption Methods. Caesar Shift. Simple Substitution Cipher. Fun to use, but are easily cracked by computers and even by humans. Josh Benaloh. Tolga Acar. Fall 2016. November 8, 2016. Practical Aspects of Modern Cryptography. 1. What is Money?. 106 billion people lived. 94% are dead. Most of the world’s wealth made after 1800. Josh Benaloh. Tolga Acar. Fall 2016. October 25, 2016. 2. The wiretap channel. Key (K. 1. ). Key (K. 2. ). Eavesdropper. Plaintext. (P). Noisy insecure. channel. Encrypt. Decrypt. Alice. Bob. Plaintext. Week two!. The Game. 8 groups of 2. 5 rounds. Math 1. Modern history. Math 2. Computer Programming. Analyzing and comparing Cryptosystems. 10 questions per round. Each question is worth 1 point. Math Round 1. 1. Part I: Crypto. Chapter 2: Crypto Basics. MXDXBVTZWVMXNSPBQXLIMSCCSGXSCJXBOVQXCJZMOJZCVC. TVWJCZAAXZBCSSCJXBQCJZCOJZCNSPOXBXSBTVWJC. JZDXGXXMOZQMSCSCJXBOVQXCJZMOJZCNSPJZHGXXMOSPLH. JZDXZAAXZBXHCSCJXTCSGXSCJXBOVQX. 1. Part I: Crypto. Part 1 . . Cryptography . 2. Crypto. Cryptology . . The art and science of making and breaking “secret codes”. Richard J. Blech. Chief Executive Officer. Secure Channels, Inc.. Is there anyone here who cannot parse and explain this equation?. 2. If not, that’s ok.. 3. Why Pre-Computer Cryptography?. If you understand pre-computer crypto, you understand crypto!. 1. Administrative Note. Professor Blocki is traveling and will be back on Wednesday. . E-mail: . jblocki@purdue.edu. . Thanks to Professor Spafford for covering the first lecture!. 2. https://www.cs.purdue.edu/homes/jblocki/courses/555_Spring17/index.html. . Multivibrator. An integrated chip that is used . in a wide variety of circuits to generate square wave and triangular shaped single and periodic pulses.. Examples in your home are . high . efficiency LED and fluorescence light . Josh Benaloh. Tolga Acar. Fall 2016. October 25, 2016. 2. The wiretap channel. Key (K. 1. ). Key (K. 2. ). Eavesdropper. Plaintext. (P). Noisy insecure. channel. Encrypt. Decrypt. Alice. Bob. Plaintext. Course Overview & What is Cryptography. Historical Ciphers (& How to Break Them). Perfect Secrecy. Readings: . Katz . and . Lindell Chapter 1-2 + Appendix A.3 (background). 1. Fall 2018. Topic . 1. What is that little black arachnid. that was in your baggie?. . IC 555. Monday July 14, 2014. IC 555. 2. I can calculate the charging and discharging time for . a capacitor.. I can calculate the period and frequency .