PPT-Caesar Ciphers An Introduction to Cryptography

What is a Caesar Cipher Caesar used to encrypt his messages using a very simple algorithm which could be easily decrypted if you know the key He would take each letter of the alphabet and replace it with a letter a certain distance away from that letter When he got to the end he would wrap back around to the beginning. 57428574555745657456574495745457447 5741157441574525745557458574495744557459 5742857455574605744157452573765741457441574605737657447 574275744157460574615745857441574605744557444573765741457441574605737657447 5741157448574555745257445574595746057445 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 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. † . Act III . Literary Elements. Stage Direction- . the manner in which the author arranges the players on the stage. Inverted Word Order-. author flips the usual conversational order of words for emphasis. BCE. led . to . thirteen . years of war and ultimately . to . the end of the Roman Republic. . By . 33. BCE. , both Caesar’s . most . trusted . lieutenant . and the last queen of Egypt . would . be dead, and a young man . Essential . Questions: . How . can we identify and analyze a central idea or theme of a work of literature? . How can we make modern day connections to the culture, time periods, and events from other parts of the world? . Octavian was the son of Julius Caesar’s niece. . The first eighteen years of Octavian’s life were unremarkable, but a surprise in Julius Caesar’s will eventually resulted in him becoming Caesar Augustus, the ruler who transformed Rome into . Octavian was the son of Julius Caesar’s niece. . The first eighteen years of Octavian’s life were unremarkable, but a surprise in Julius Caesar’s will eventually resulted in him becoming Caesar Augustus, the ruler who transformed Rome into . Substitution. Classical Ciphers. Transposition. Data Encryption Standard 1977. Modern Cryptography. “New Directions in Cryptography” 1976. Symmetric . key block ciphers. Public key ciphers. Stream ciphers. pp.115. 1.. Getting acquainted with Shakespeare. 2. A look at Shakespeare. ’. s London. 3. The Elizabethan Theater - The Global Theater . 4. Biography of Julius Caesar and brief historical overview. JULIUS CAESAR 100 – 44 B.C.E On March 15, 44 B.C., Julius Caesar was assassinated by a group of Roman senators . The event took place 1 month after Caesar was appointed dictator of Rome for life. Test Review. Section I: Name the character (10 points) . H. as . a dream that Caesar’s statue is flowing with . blood. Calpurnia. B. . . Convinces . Caesar to go to the . capital. Decius. C. . . Warns . 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,” .