PPT-Block ciphers 2

Author : tatyana-admore | Published Date : 2016-09-22

Session 4 Contents Linear cryptanalysis Differential cryptanalysis 2 48 Linear cryptanalysis Known plaintext attack The cryptanalyst has a set of plaintexts and

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Block ciphers 2: Transcript

Session 4 Contents Linear cryptanalysis Differential cryptanalysis 2 48 Linear cryptanalysis Known plaintext attack The cryptanalyst has a set of plaintexts and the corresponding ciphertexts. Modes of operation:. many time key (CBC). Online Cryptography Course Dan Boneh. Example applications. : . 1. File systems: Same AES key used to encrypt many files.. Princeton University . Spring 2010. Boaz Barak. Lecture 7: . Chosen Plaintext Attack. Block . Ciphers. Short Review of PRF construction. 2. G. f. s. (x). Snapshot after . i. invocations.. Short Review of PRF construction. 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 . 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. Chapter 3. Fifth Edition. by William Stallings . Lecture slides by . Lawrie. Brown. Content. Block Cipher Principles. The Data Encryption Standard. Simplified-DES. DES Details. DES Design Issues and Attacks. 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/. The data encryption standard (DES). Online Cryptography Course Dan Boneh. Block ciphers: crypto work horse. E, D. CT Block. n. bits. PT Block. n. bits. Key. k Bits. Review: PRPs and PRFs. Online Cryptography Course Dan Boneh. Block ciphers: crypto work horse. E, D. CT Block. n. bits. PT Block. n. bits. Key. k . bits. Canonical examples:. 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?. Using Linear Algebra. Brian Worthington. University of North Texas. MATH 2700.002. 5/10/2010. Hill Ciphers. Created by Lester S. Hill in 1929. Polygraphic Substitution Cipher. Uses Linear Algebra to Encrypt and Decrypt.

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