Basics of ICT security
Diana Berbecaru · 2012
initially, cryptography was concerned solely with message confidentiality (i.e., encryption) = conversion of messages from a comprehensible form into an incomprehensible one, and back again at the other end, rendering it unreadable by interceptors or eavesdroppers without secret knowledge. lately, the field expanded to include techniques for message integrity checking, sender/receiver identity authentication, digital signatures, a.s.o. Cryptography refers to numerical algorithms, implementation of those algorithms and various mathematical and programming tools to meet security goals. Course Computer Systems Security – 2012 Cryptography