MODERN CRYPTOGRAPHY

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Evolution of Side Channel Attacks Dec 11, 1995: Paul Kocher announces timing attack on the sci. crypt news group: “I’ve just released details of an attack many of you will find interesting since quite a few existing cryptography products and systems are potentially at risk. The general idea of the attack is that secret keys can be found by measuring the amount of time used to process messages. The paper describes attacks against RSA, fixed exponent Diffie-Hellman, and DSS, and the techniques can work with many other systems as well”. IMA 2009 12
Side Channel Attacks • Changed the way cryptographers think about security –Properties of digital circuits are far more important for security than was previously believed • Many previous design approaches recognised as inadequate IMA 2009 13
Page 1 and 2: MODERN CRYPTOGRAPHY Fred Piper Code
Page 3 and 4: “Many cryptographic systems rely
Page 5 and 6: Two Types of Cipher System • Conv
Page 7 and 8: Cryptographic System • Design alg
Page 9 and 10: Implementing Cryptographic Algorith
Page 11: Side Channel Attacks To find a cryp
Page 15 and 16: Enigma Machine • Polyalphabetic c
Page 17 and 18: Lessons from Bletchley Park? • In
Page 19 and 20: Use of Cryptography Service • Con
Page 21 and 22: What is Cryptography Now? • A thr
Page 23 and 24: Cryptographic conjectures made in 1
Page 25 and 26: Key Search for DES 56 bit key requi
Page 27 and 28: DES: Key Search on Internet (1997)
Page 29 and 30: Fast DES Key Search DES Breaker use
Page 31 and 32: User Authentication and Data Integr
Page 33 and 34: Attacks on Scheme Implementing RSA
Page 35 and 36: RSA: The Theory (1) n = pq where p,
Page 37 and 38: RSA Security Problem The theoretica
Page 39 and 40: RSA Implementation RSA involves com
Page 41 and 42: Saints or Sinners ? Sender Receiver
Page 43: Cryptography and You • SSL • AT

MODERN CRYPTOGRAPHY

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