Substitution Techniques 10/18/2010 K.Marimuthu,SCSE Network Security 1 Classical Ciphers Plaintext is viewed as a sequence of elements (e.g., bits or characters) Substitution…
Cryptography and Network Security (IT62) UNIT I 1. Specify the four categories of security threads? Interruption Interception Modification Fabrication…
Overview of Cryptography Hans-Wolfgang Loidl http://www.macs.hw.ac.uk/~hwloidl School of Mathematical and Computer Sciences Heriot-Watt University, Edinburgh Hans-Wolfgang…
1. O Cryptography, derived from Greek words krptos- secret and graphy- writing O It is the science of using mathematics to hide information. O With the help of Cryptography…