Cryptography Demystified
暫譯: 密碼學揭秘

Cryptography is not just for specialists. Now every wireless message, wireless phone call, online transaction, and email is encrypted at one end and decrypted at the other. “Crypto” is part of the job description for network designers, network engineers, and telecom developers. If you need cryptography basics—but dread the thick tomes that are your only other option—help is at hand. Cryptography Demystified puts the fundamentals into a 35-module, learn-by-doing package that’s actually fun to use.

You must read this book if—

* You prefer your simplifications from an expert who understands the complexities

* 6 years of success as a short course for students and professionals works for you

* you enjoy hearing the phrase “nothing to memorize”

* ecommerce, email, network security, or wireless communications is part of your bailiwick

* cracking cryptography means a jump up the career ladder

* the words “public-key cryptography,” “channel-based cryptography,” and “prime numbers” pique your interest

* best-practices cryptography is the only secure way for you—and your company—to go

One of the most complex subjects in Information Technology, cryptography gets its due in this down-to-earth, self-teaching tutorial—the first to make the basics of the science truly accessible.

Contents            

   Part I: INTRODUCTION TO SYMMETRIC CRYPTOGRAPHY
    Module 1 First Considerations
     Exercise 1
    Module 2 Plaintext
     Exercise 2
    Module 3 Digitization of Plaintext
     Exercise 3
    Module 4 Toward a Cryptographic Paradigm
     Exercise 4
    Module 5 What We Want from the Keytext
     Exercise 5
    Module 6 Randomness I
     Exercise 6
    Module 7 Finite State Sequential Machines
     Exercise 7 Transition Matrix
    Module 8 m-sequences
     Exercise 8
    Module 9 The Paradigm Attempted
     Exercise 9
    Module 10 The Block Cipher Function - A Modern Keystone
to the Paradigm
     Exercise 10
    Module 11 Confidentiality Modes: ECB and CTR
     Exercise 11
    Module 12 Confidentiality Mode: Output Feedback (OFB)
     Exercise 12
    Module 13 Confidentiality Modes: Cipher Feedback (CFB)
and Cipher Block Chaining (CBC)
     Exercise 13
   Part II NUMBER THEORY WE WILL NEED
    Module 14 Prime Numbers I
     Exercise 14
    Module 15 Congruences
     Exercise 15
    Module 16 Euler-Fermat Theorem
     Exercise 16
    Module 17 The Euler Phi (f) Function
     Exercise 17
    Module 18 The Binary Exponentiation Algorithm
     Exercise 18
    Module 19 The Extended Euclidean Algorithm
     Exercise 19
    Module 20 Primitive Roots
     Exercise 20
    Module 21 Chinese Remainder Theorem
     Exercise 21
   Part III INTRODUCTION TO PUBLIC KEY CRYPTOGRAPHY
    Module 22 Merkles Puzzle
     Exercise 22
    Module 23 The Diffie-Hellman Public Key Cryptographic System
     Exercise 23
    Module 24 Split Search
     Exercise 24
    Module 25 A Variant of the Diffie-Hellman System
     Exercise 25
    Module 26 The RSA Public Key Cryptographic System
     Exercise 26
    Module 27 Prime Numbers II
     Exercise 27
   Part IV KEYING VARIABLES
    Module 28 Keying Variable Distribution
     Exercise 28
    Module 29 Secret Sharing
     Exercise 29
    Module 30 Randomness II
     Exercise 30
    Module 31 Cryptovariables
     Exercise 31
   Part V CRYPTO-OBSOLESCENCE
    Module 32 The Aging Cryptoalgorithm
     Exercise 32
    Module 33 SUPERDES(tm