02302cam a22002895a 4500 17946660 20201128021451.0 131119t2014 nyua frb f001 0 eng d 1107603455 (paperback) 9781107603455 (paperback) DLC eng DLC EG-ScBUE 005.82 22 KLE Klein, Philip N., 39288 A cryptography primer : secrets and promises / Philip N. Klein. New York : Cambridge University Press, c.2014 xiii, 174 p. : ill. ; 23 cm. Index : p. 173-174. Bibliography : p. 171. Machine generated contents note: 1. Introduction; 2. Modular arithmetic; 3. The addition cypher, an insecure block cypher; 4. Functions; 5. Probability theory; 6. Perfect secrecy and perfectly secure cryptosystems; 7. Number theory; 8. Euclid's algorithm; 9. Some uses of perfect secrecy; 10. Computational problems, easy and hard; 11. Modular exponentiation, modular logarithm, and one-way functions; 12. Diffie and Hellman's exponential-key-agreement protocol; 13. Computationally secure single-key cryptosystems; 14. Public-key cryptosystems and digital signatures. "Cryptography has been employed in war and diplomacy from the time of Julius Caesar. In our Internet age, cryptography's most widespread application may be for commerce, from protecting the security of electronic transfers to guarding communication from industrial espionage. This accessible introduction for undergraduates explains the cryptographic protocols for achieving privacy of communication and the use of digital signatures for certifying the validity, integrity, and origin of a message, document, or program. Rather than offering a how-to on configuring web browsers and e-mail programs, the author provides a guide to the principles and elementary mathematics underlying modern cryptography, giving readers a look under the hood for security techniques and the reasons they are thought to be secure"-- Computer security. BUEsh 2637 Data encryption (Computer science) BUEsh 2635 Digital signatures. BUEsh 39289 BUEsh COMSCI August2015 February2016 ddc 005.82 KLE 20451 20423 0 0 ddc 0 0 Baccah MAIN MAIN LOW 2015-08-04 purchase 540.00 21759 0 005.82 KLE 000030741 2025-07-15 00:00:00 675.00 BB