PPT-Public key ciphers 1

Session 5 Contents Intractability and NP completness Primality testing Factoring large composite numbers Complexity of RSA Security of RSA 2 67 Intractability and NP completness A problem. Dan Fleck. CS 469: Security Engineering. These slides are modified with permission from Bill Young (. Univ. of Texas). Coming up: What is Good Encryption?. 1. 1. 1. What is Good Encryption. ?. The following are suggested as tests of worth for . Pseudorandom Generators. Online Cryptography Course Dan Boneh. Review. Cipher over (K,M,C): a pair of “efficient” . algs. (. E. , . D. ) . s.t.. . ∀ . Demijan. . Klinc. * . Carmit. . Hazay. † . Ashish. . Jagmohan. **. Hugo . Krawczyk. ** . Tal Rabin. **. * . Georgia . Institute of . Technology. ** . IBM T.J. Watson Research . Labs. † . Configuration. WebSec. 101. mike.andrews@foundstone.com. mike@mikeandrews.com. Intro Music by . DoKashiteru. via . CCMixter. Nothing in isolation. Network. Operating System. Libraries. Web server. Rice ELEC 528/ COMP 538 . Farinaz Koushanfar. Spring 2009. 2. Summary. Substitution ciphers. Permutations. Making good ciphers . DES. AES. Slides are courtesy of Leszek T. Lilien from WMich. http://www.cs.wmich.edu/~llilien/. Lecture 9: Cryptography. 2. Topics. Introduction. Definitions and Terminology. Steganography. Transposition Ciphers. Substitution Ciphers. 3. Introduction. Throughout history, people have had the need to send messages to other people . Symmetric ciphers . 2. part 1. Block ciphers - definition. Block cipher . encipherment . provides confidentiality by transforming a plaintext message into a ciphertext message, by means of a special function.. Unity Connection . 11.0. EDCS-1464707. Abbreviations. CUCA. - Cisco unity Connection Administration. REST. - Representational State Transfer. CSR . -. Certificate Signing Request. CA . - Certificate Authority. Presented by: Andrew F. Conn. Lecture #12: Solving Congruence's and Cryptography. October 10. th. , 2016. Today. ’. s Topics. More on divisibility and remainders.. Modulo Inverse. Chinese Remainder Theorem. David . Brumely. Carnegie Mellon University. Credits:. Slides originally designed by David . Brumley. . . Many. other slides are from Dan . Boneh’s. June 2012 . Coursera. . crypto class.. What is a block cipher?. Substitution. Classical Ciphers. Transposition. Data Encryption Standard 1977. Modern Cryptography. “New Directions in Cryptography” 1976. Symmetric . key block ciphers. Public key ciphers. Stream ciphers. David . Brumely. Carnegie Mellon University. Credits:. Slides originally designed by David . Brumley. . . Many. other slides are from Dan . Boneh’s. June 2012 . Coursera. . crypto class.. What is a block cipher?. DES, AES . TEK4500. 01.09.2020 . Håkon Jacobsen. hakon.jacobsen@its.uio.no. Ideal solution: secure channels. 2. Internet. Alice. Bob. M. Adversary. Security goals:. Data privacy: . adversary should not be able to read message M . Slides Original Source:. M. Stamp, “Information Security: Principles and Practice,” John Wiley. C. . Paar. and J. Pelzl, “Understanding Cryptography – A Textbook for Students and Practitioners,” .