by Jan C.A. Van Der Lubbe
This text covers the fundamentals of cryptography, which is concerned with methods of security in the storage and transportation of information. Computers are now found in every layer of society, and information is being communicated and processed automatically on a large scale. Examples include medical and financial files, automatic banking, video-phones, pay-tv, facsimiles, tele-shopping, and global computer networks. The book will be of value to advanced students and researchers involved in data protection and information processing, especially electrical engineers and people working in informatics and computer science.
by Douglas R. Stinson
Douglas R. Stinson's Cryptography: Theory and Practice is a mathematically intensive examination of cryptography, including ciphers, the Data Encryption Standard (DES), public key cryptography, one-way hash functions, and digital signatures. Stinson's explication of "zero-sum proofs"--a process by which one person lets another person know that he or she has a password without actually revealing any information--is especially good.
If you are new to the math behind cryptography but want to tackle it, the author covers all of the required background to understand the real mathematics here. Cryptography includes extensive exercises with each chapter and makes an ideal introduction for any math-literate person willing to get acquainted with this material.
by William F. Friedman
Introductory level text by perhaps the leading authority on the subject.