CRYPTOLOGY BY: Chris and Chris. Concepts & Definitions c ryptology- Is the art,or would be science, of designing and braking down secrecy systems c ryptology-

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Presentation transcript:

CRYPTOLOGY BY: Chris and Chris

Concepts & Definitions c ryptology- Is the art,or would be science, of designing and braking down secrecy systems c ryptology- Is the art,or would be science, of designing and braking down secrecy systems Classical Cryptology -using codes and ciphers Codes-a fixed predetermined dictionary that assigns code words to most likely message. Ciphers-is a universal scheme employing a set of transformations capable of turning any plaintext into cipher text Symmetric Computer-Based Cryptology -a language where the sender and receiver has the same key. Public Key Cryptology -entrusts math itself with keys to a cryptosystem.

Concepts and Definitions cont. Plain text- The text that you enter Cipher text- the ciphered text that will be returned

Example Caesar Cipher-this is a shift cipher where the alphabet is shifted to provide a rule for substitution. Lnanvfgurorfg means Yana is the best

Progress Since the last presentation Chris^2 have started to work on our programming example.

References 1. Invitation to Cryptology By: Thomas H. Barr raliszewski.pdf?key1= &key2= &coll=ACM&dl=ACM&CFID= &CFTOKEN= Cryptology in transition By: Abraham Lempel lempel.pdf?key1=356792&key2= &coll=ACM&dl=ACM&CFID= &CFTOKEN=