Summary:

Completely revised and updated to provide the successfulprogrammer and systems designer with superlative guidelinesregarding practical applications of contemporary cryptography. Newfeatures include in-depth treatment, fresh encryption algorithms,including the formerly secret GOST algorithm designed in Russia,more detailed material on incorporating algorithms, andprogramming fragments into working software, and the latestdevelopments in the areas of message authentications and digitalcash.

Table of Contents:

((Sections in all capitals are either new or substantially rewritten.))

Forward by Whitfield Diffie

Preface

Chapter 1: Foundations

Terminology
STEGANOGRAPHY
Substitution Ciphers and Transposition Ciphers
Simple XOR
One-Time Pads
Computer Algorithms
Large Numbers

Part I: Cryptographic Protocols

Chapter 2: Protocol Building Blocks

Introduction to Protocols
Communications using Symmetric Cryptography
One-Way Functions
One-Way Hash Functions
Communications using Public-Key Cryptography
Digital Signatures
Digital Signatures with Encryption
Random and Pseudo-Random Sequence Generation

Chapter 3: Basic Protocols

Key Exchange
Authentication
AUTHENTICATION AND KEY EXCHANGE
FORMAL ANALYSIS OF AUTHENTICATION AND KEY-EXCHANGE PROTOCOLS
Multiple-Key Public-Key Cryptography
Secret Splitting
Secret Sharing
Cryptographic Protection of Databases

Chapter 4: Intermediate Protocols

Timestamping Services
Subliminal Channel
Undeniable Digital Signatures
DESIGNATED CONFIRMER SIGNATURES
PROXY SIGNATURES
Group Signatures
Fail-Stop Digital Signatures
Computing with Encrypted Data
Bit Commitment
Fair Coin Flips
Mental Poker
ONE-WAY ACCUMULATORS
All-or-Nothing Disclosure of Secrets
KEY ESCROW

Chapter 5: Advanced Protocols

ZERO-KNOWLEDGE PROOFS
Zero-Knowledge Proofs of Identity
Blind Signatures
IDENTITY-BASED PUBLIC-KEY CRYPTOGRAPHY
Oblivious Transfer
OBLIVIOUS SIGNATURES
Simultaneous Contract Signing
Digital Certified Mail
Simultaneous Exchange of Secrets

Chapter 6:Esoteric Protocols

SECURE ELECTIONS
Secure Multiparty Computation
Anonymous Message Broadcast
DIGITAL CASH

Part II: Cryptographic Techniques

Chapter 7: Key Length

SYMMETRIC KEY LENGTH
PUBLIC-KEY KEY LENGTH
COMPARING SYMMETRIC AND PUBLIC-KEY KEY LENGTH
BIRTHDAY ATTACKS AGAINST ONE-WAY HASH FUNCTIONS
How Long Should a Key Be?
Caveat Emptor

Chapter 8: Key Management

Generating Keys
NONLINEAR KEYSPACES
Transferring Keys
Verifying Keys
Using Keys
UPDATING KEYS
Storing Keys
Backup Keys
Compromised Keys
Lifetime of Keys
Destroying Keys
Public-Key Key Management

Chapter 9: Algorithm Types and Modes

Electronic Codebook Mode
Block Replay
Cipher Block Chaining Mode
Stream Ciphers
Self-Synchronizing Stream Ciphers
Cipher-Feedback Mode
Synchronous Stream Ciphers
Output-Feedback Mode
Counter Mode
Other Block-Cipher Modes
CHOOSING A CIPHER MODE
INTERLEAVING
Block Ciphers vs. Stream Ciphers

Chapter 10: Using Algorithms

Choosing an Algorithm
Public-Key Cryptography vs. Symmetric Cryptography
Encrypting Communications Channels
ENCRYPTING DATA FOR STORAGE
Hardware Encryption vs. Software Encryption
COMPRESSION, ENCODING, AND ENCRYPTION
DETECTING ENCRYPTION
HIDING CIPHERTEXT IN CIPHERTEXT
DESTROYING INFORMATION

Part III: Cryptographic Algorithms

Chapter 11: Mathematical Background

Information Theory
Complexity Theory
NUMBER THEORY
FACTORING
Prime Number Generation
Discrete Logarithms in a Finite Field

Chapter 12: Data Encryption Standard

Background
Description of DES
Security of DES
DIFFERENTIAL AND LINEAR CRYPTANALYSIS
THE REAL DESIGN CRITERIA
DES VARIANTS
HOW SECURE IS DES TODAY?

Chapter 13: Other Block Algorithms

Lucifer
Madryga
Newdes
Feal-N
Redoc
LOKI
Khufu and Khafre
RC2
Idea
Mmb
CA-1.1
SKIPJACK

Chapter 14: Still Other Block Algorithms

GOST
CAST
BLOWFISH
SAFER K-64
3-WAY
CRAB
SXAL8/MBAL
RC5
OTHER BLOCK ALGORITHMS
THEORY OF BLOCK CIPHER DESIGN
USING ONE-WAY HASH FUNCTIONS
CHOOSING A BLOCK ALGORITHM

Chapter 15: Combining Block Algorithms

DOUBLE ENCRYPTION<