Decrypted Secrets: Methods & Maxims of Cryptology 4th Edition

Description

In today's unsafe and increasingly wired world cryptology plays a vital role in protecting communication channels, databases, and software from unwanted intruders. This revised and extended third edition of the classic reference work on cryptology now contains many new technical and biographical details. The first part treats secret codes and their uses - cryptography. The second part deals with the process of covertly decrypting a secret code - cryptanalysis, where particular advice on assessing methods is given. The book presupposes only elementary mathematical knowledge. Spiced with a wealth of exciting, amusing, and sometimes personal stories from the history of cryptology, it will also interest general readers.

Introductory synopsis
Aims & methods of cryptography
Simple substitution
Polygraphic substitution & coding
Linear substitution
Transposition
Polyalphabetic encryption: Keys
Composition of classes of methods
Open encryption key systems
Encryption security
Exhausting combinatorial complexity
Anatomy of language: Patterns
Polyalphabetic case: Probable words
Kappa & Chi
Periodicity examination
Alignment of accompanying alphabets
Compromises
Linear basis analysis
Anagramming
Concluding remarks