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| Foreword | |
| Preface | |
| About the Author | |
| Aperitifs | |
| The Lexicon of Cryptography | |
| Cryptographic Systems | |
| Cryptanalysis | |
| Side Information | |
| Thomas Jefferson and the M-94 | |
| Cryptography and History | |
| Cryptography and Computers | |
| The National Security Agency | ... MORE |
| The Giants | |
| No Sex, Money, Crime or . . . Love | |
| An Example of the Inference Process in Cryptanalysis | |
| Warning! | |
| Columnar Transposition | |
| Shannon?s Classification of Secrecy Transformations | |
| The Rules of Columnar Transposition Encipherment | |
| Cribbing | |
| Examples of Cribbing | |
| Plaintext Language Models | |
| Counting k-Grams | |
| Deriving the Parameters of a Markov Model from Sliding Window Counts | |
| Markov Scoring | |
| The ADFGVX Transposition System | |
| CODA | |
| Columnar Transposition Problems | |
| Monoalphabetic Substitution | |
| Monoalphabetic Substitution | |
| Caesar's Cipher | |
| Cribbing Using Isomorphs | |
| The x2-Test of a Hypothesis | |
| Pruning from the Table of Isomorphs | |
| Partial Maximum Likelihood Estimation of a Monoalphabetic Substitution | |
| The Hidden Markov Model (HMM) | |
| Hill Encipherment of ASCII N-Grams | |
| Gaussian Elimination | |
| Monoalphabetic Substitution Problems | |
| Polyalphabetic Substitution | |
| Running Keys | |
| Blaise de Vigenére | |
| Gilbert S. Vernam | |
| The One-Time Pad | |
| Finding the Key of Vernam-Vigenére Ciphertext with Known Period by Correlation | |
| Coincidence | |
| Venona | |
| Polyalphabetic Substitution Problems | |
| Statistical Tests | |
| Weaknesses in a Cryptosystem | |
| The Kolmogorov-Smirnov Test | |
| NIST's Proposed Statistical Tests | |
| Diagnosis | |
| Statistical Tests Problems | |
| The Emergence Of Cipher Machines | |
| The Rotor | |
| Rotor Systems | |
| Rotor Patents | |
| A Characteristic Property of Conjugacy | |
| Analysis of a 1-Rotor System Ciphertext Only | |
| The Displacement Sequence of a Permutation | |
| Arthur Scherbius | |
| Enigma Key Distribution Protocol | |
| Cryptanalysis of the Enigma | |
| Cribbing Enigma Ciphertext | |
| The Lorenz Schlüsselzusatz | |
| The SZ40 Pin Wheels | |
| SZ40 Cryptanalysis Problems | |
| Cribbing SZ40 Ciphertext | |
| The Japanese Cipher Machines | |
| Japanese Signaling Conventions | |
| Half-Rotors | |
| Components of the RED Machine | |
| Cribbing RED Ciphertext | |
| Generalized Vowels and Consonants | |
| "Climb Mount Itaka" - War! | |
| Components of the PURPLE Machine | |
| The PURPLE Keys | |
| Cribbing PURPLE Finding the V-Stepper | |
| Cribbing PURPLE Finding the C-Steppers | |
| Stream Ciphers | |
| Stream Ciphers | |
| Feedback Shift Registers | |
| The Algebra of Polynomials over Z2 | |
| The Characteristic Polynomial of a Linear Feedback Shift Register | |
| Properties of Maximal Length LFSR Sequences | |
| Linear Equivalence | |
| Combining Multiple Linear Feedback Shift Registers | |
| Matrix Representation of the LFSR | |
| Cribbing of Stream Enciphered ASCII Plaintext | |
| Nonlinear Feedback Shift Registers | |
| Nonlinear Key Stream Generation | |
| Irregular Clocking | |
| RC4 | |
| Stream Encipherment Problems | |
| Block-Ciphers Clucifer, Des, And Aes | |
| Lucifer | |
| Des | |
| The DES S-Boxes, P-Box, and Initial Permutation (IP) | |
| DES Key Schedule | |
| Sample DES Encipherment | |
| Chaining | |
| Is DES a Random Mapping? | |
| DES in the Output-Feedback Mode (OFB) | |
| Cryptanalysis of DES | |
| Differential Cryptanalysis | |
| The EFS DES-Cracker | |
| What Now? | |
| The Future Advanced Data Encryption Standard | |
| And the Winner Is! | |
| The Rijndael Operations | |
| The Rijndael Cipher | |
| Rijndael's Strength Propagation of Patterns | |
| When is a Product Block-Cipher Secure? | |
| Generating the Symmetric Group | |
| A Class of Block Ciphers | |
| The IDEA Block Cipher | |
| The Paradigm Of Public Key Cryptography | |
| In the Beginning. . | |
| Key Distribution | |
| E-Commerce | |
| Public-Key Cryptosystems Easy and Hard Computational Problems | |
| Do PKCS Solve the Problem of Key Distribution? | |
| P.S | |
| The Knapsack Cryptosystem | |
| Subset Sum and Knapsack Problems | |
| Modular Arithmetic and the Euclidean Algorithm | |
| A Modular Arithmetic Knapsack Problem | |
| Trap-Door Knapsacks | |
| Knapsack Encipherment and Decipherment of ASCII-Plaintext | |
| Cryptanalysis of the Merkle-Hellman Knapsack System Modular Mapping | |
| Diophantine Approximation | |
| Short Vectors in a Lattice | |
| Knapsack-Like Cryptosystems | |
| Knapsack Cryptosystem Problems | |
| The Rsa Cryptosystem | |
| A Short Number-Theoretic Digression | |
| RSA | |
| The RSA Encipherment and Decipherment of ASCII-Plaintext | |
| Attack on RSA | |
| Williams Variation of RSA | |
| Multiprecision Modular Arithmetic | |
| Prime Numbers And Factorization | |
| Number Theory and Cryptography | |
| Prime Numbers and the Sieve of Eratosthenes | |
| Pollard's p 2 1 Method | |
| Pollard's r-Algorithm | |
| Quadratic Residues | |
| Random Factorization | |
| The Quadratic Sieve (QS) | |
| Testing if an Integer is a Prime | |
| The RSA Challenge | |
| Perfect Numbers and the Mersenne Primes | |
| Multiprecision Arithmetic | |
| Prime Number Testing and Factorization Problems | |
| The Discrete Logarithm Problem | |
| The Discrete Logarithm Problem Modulo p | |
| Solution of the DLP Modulo p Given a Factorization of p 2 1 | |
| Adelman's Subexponential Algorithm for the Discrete Logarithm Problem | |
| The Baby-Step, Giant-Step Algorithm | |
| The Index-Calculus Method | |
| Pollard's r -Algorithm | |
| Extension Fields | |
| The Current State of Discrete Logarithm Research | |
| Elliptic Curve Cryptography | |
| Elliptic Curves | |
| The Elliptic Group over the Reals | |
| Lenstra's Factorization Algorithm | |
| The Elliptic Group over Zp ( p . 3) | |
| Elliptic Groups over the Field Zm,2 | |
| Computations in the Elliptic Group EZm,2(a, b) | |
| Supersingular Elliptic Curves | |
| Diffie-Hellman Key Exchange Using an Elliptic Curve | |
| The Menezes-Vanstone Elliptic Curve Cryptosystem | |
| The Elliptic Curve Digital Signature Algorithm | |
| The Certicom Challenge | |
| NSA and Elliptic Curve Cryptography | |
| Key Exchange In A Network | |
| Key Distribution in a Network | |
| U.S. Patent '770 | |
| Spoofing | |
| El Gamal's Extension of Diffie-Hellman | |
| Shamir's Autonomous Key Exchange | |
| X9.17 Key Exchange Architecture | |
| The Needham-Schroeder Key Distribution Protocol | |
| Digital Signatures And Authentication | |
| The Need for Signatures | |
| Threats to Network Transactions | |
| Secrecy, Digital Signatures, and Authentication | |
| The Desiderata of a Digital Signature | |
| Public-Key Cryptography and Signature Systems | |
| Rabin's Quadratic Residue Signature Protocol | |
| Hash Functions | |
| MD5 | |
| The Secure Hash Algorithm | |
| NIST's Digital Signature Algorithm | |
| El Gamal's Signature Protocol | |
| The Fiat-Shamir Identification and Signature Schema | |
| The Oblivious Transfer | |
| Applications Of Cryptography | |
| UNIX Password Encipherment | |
| Magnetic Stripe Technology | |
| Protecting ATM Transactions | |
| Keyed-Access Cards | |
| Smart Cards | |
| Who Can You Trust? Kohnfelder's Certificates | |
| X.509 Certificates | |
| The Secure Socket Layer (SSL) | |
| Making a Secure Credit Card Payment on the Web | |
| Cryptographic Patents | |
| What is a Patent? | |
| Patentability of Ideas | |
| The Format of a Patent | |
| Patentable versus Nonpatentable Subjects | |
| Infringement | |
| The Role of Patents in Cryptography | |
| U.S. Patent 3,543,904 | |
| U.S. Patent 4,200,770 | |
| U.S. Patent 4,218,582 | |
| U.S. Patent 4,405,829 | |
| PKS/RSADSI Litigation | |
| Leon Stambler | |
| Index | |
| Table of Contents provided by Publisher. All Rights Reserved. |