有限域小波及其在密碼學和譯碼中的應用

內(nèi)容概要

《有限域小波及其在密碼學和譯碼中的應用》探討了有限域小波與濾波器組理論，開創(chuàng)了“有限域小波變換理論” ，此理論提出了一個定義在有限域上的一般的小波分解序列?！队邢抻蛐〔捌湓诿艽a學和譯碼中的應用》還介紹了此理論在糾錯代碼和數(shù)據(jù)安全性上的首次應用。
《有限域小波及其在密碼學和譯碼中的應用》可作為應用數(shù)學、密碼學、差錯控制編碼領域研究者的參考書，對于從事密碼項目開發(fā)的實際工作者也有很大的價值。

作者簡介

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書籍目錄

Preface
Figures
Tables
Algorithms
Acronyms
1 Introduction and Some Algebra Preliminaries
1.1 Notations
1.1.1 Set Notation
1.1.2 Matrix Notation
1.1.3 Asymptotic Notation
1.1.4 General Notation
1.2 Abstract Algebraic Background
1.2.1 Group
1.2.2 Ring
1.2.3 Field
1.2.4 Irreducible and Primitive Polynomials
1.2.5 Construction of Extension Fields
1.2.6 Module
1.2.7 Algebra
1.3 Linear Algebra Background
1.3.1 Involution
1.3.2 Sesquilinear Form
1.3.3 Unitary Matrix
1.3.4 Paraunitary Matrix
I Finite-Field Wavelets
2 Background Review and Motivation
2.1 Wavelets for Discrete-Time Signals
2.2 Cyclic Wavelet Transforms
2.3 Review of Transforms over Finite Fields
2.3.1 Discrete Fourier Transform over Finite Fields
2.3.2 Base-Field Transforms over Finite Fields
2.3.3 Related Work on Finite-Field Wavelets
3 Finite-Field Wavelet Basis Functions
3.1 Finite-Field Discrete-Time Basis
3.1.1 Non-Degenerate Bilinear Form
3.1.2 Orthonormal Wavelet Basis over Finite Fields
3.1.3 Completeness of the Orthonormal Set
3.2 Construction of Mother Wavelet and Scaling Function
3.3 Summary
4 Theory of Paraunitary Filter Banks over Fields of Characteristic
2
4.1 Background Review
4.1.1 Degree-1 Paraunitary Building Block over GF(2)
4.1.2 Degree-2 Paraunitary Building Blocks over GF(2)
4.1.3 Lapped Orthogonal Transforms over G F(2)
4.2 Unitary Matrices over GF(2r)
4.3 Paraunitary Matrices over Fields of Characteristic 2
4.3.1 Properties of 2 x 2 Paraunitary Matrices over GF (2r)
4.4 Factorization of Paraunitary Matrices over GF (2r)
4.4.1 Degree-1 Paraunitary Building Block over GF (2r)
4.4.2 Degree-2 Paraunitary Building Block over GF (2r)
4.4.3 Degree-2r Paraunitary Building Block over GF (2r)
4.4.4 Factorization of 2 x 2 Paraunitary Matrices over GF
(2r)
4.4.5 Degree-Mr Paraunitary Building Block over GF (2r)
4.4.6 Factorization ofM x M Paraunitary Matrices over GF (2r)
4.5 Summary
II Multivariate Cryptography
5 Introduction
5.1 Historical Background and Motivation
5.2 RSA
5.3 Elliptic Curve Cryptography
5.4 Multivariate Cryptography
6 Wavelet Self-Synchronizing Stream Cipher
6.1 Background Review
6.1.1 Classification of Stream Ciphers
6.2 Wavelet Self-Synchronizing Stream Cipher (WSSC)
6.2.1 Modified Wavelet Transform
6.2.2 Basic Round of the WSSC
6.2.3 Multiple Rounds of the WSSC
6.2.4 Key Setup
6.3 Cryptanalysis of the WSSC
6.3.1 Interpolation Attack
6.3.2 Algebraic Attacks
6.3.3 Delta Attack
6.3.4 Time-Memory Tradeoff Attack
6.3.5 Divide-and-Conquer Attack
6.3.6 Correlation and Distinguishing Attacks
6.4 Performance Evaluation
6.5 Summary
7 Wavelet Block Cipher
7.1 Background Review
7.1.1 Feistel Cipher and Data Encryption Standard (DES)
7.1.2 Advanced Encryption Standard (AES)
7.2 Wavelet Block Cipher (WBC)
7.2.1 Linear Components of the WBC
7.2.2 Nonlinear Components of the WBC
7.3 Two-Round Wavelet Block Cipher
7.3.1 Key Setup
7.4 Cryptanalysis of the WBC
7.4.1 Differential and Linear Attacks
7.4.2 Divide-and-Conquer Attack
7.4.3 Interpolation Attack
7.4.4 Delta Attack
7.5 Performance Evaluation
7.6 Summary
8 Paraunitary Public-Key Cryptography
8.1 Background Review
8.1.1 Signature Based on Birational Permutations
8.1.2 Tame Transformation Methods
8.1.3 Tractable Rational Map Cryptosystem
8.1.4 C* Algorithm and its Variants
8.2 Paraunitary Asymmetric Cryptosystem (PAC)
8.2.1 Bijective Mappings
8.2.2 Polynomial Vector
8.2.3 Setup Algorithms
8.3 Probabilistic PAC
8.4 On the Computational Security of the PAC
8.5 A Practical Instance of the PAC
8.5.1 Constructing the Polynomial Vector
8.5.2 Complexity of the PAC
8.6 Cryptanalysis of the Instance of the PAC
8.6.1 Grobner Basis
8.6.2 Univariate Polynomial Representation of the Public
Polynomials
8.6.3 XL and FXL Algorithms
8.6.4 An Attack for Small r
8.7 Paraunitary Digital Signature Scheme (PDSS)
8.7.1 Polynomial Vector
8.7.2 Setup Algorithm
8.7.3 A Practical Instance of the PDSS
8.8 Summary
III Error-Control Coding
9 Some Basic Concepts of Error-Control Coding
10 Double-Circulant Wavelet Block Codes
10.1 Structure of Double-Circulant Wavelet Coding
10.1.1 Wavelet Structures for Encoding and Decoding
10.2 Maximum-Distance Separable Codes
10.3 Double-Circulant Self-Dual Codes
10.3.1 Fundamental Structure of Self-Dual Wavelet Codes
10.3.2 Maximum-Distance Separable Self-Dual Codes
10.4 Decoding Wavelet Codes
10.4.1 Bounded-Distance Decoding of (20, 10, 6) Double-Circulant
Wavelet Code
10.4.2 Bounded-Distance Decoding of the Wavelet-Golay Code
10.5 Summary
11 Arbitrary-Rate Wavelet Block Codes
11.1 Structure of Wavelet Coding
11.1.1 Wavelet Structure for Encoding and Decoding
11.2 Rate-1/L Maximum-Distance Separable Codes
11.3 Arbitrary-Rate Wavelet Block Codes
11.4 Arbitrary-Rate Maximum-Distance Separable Codes
11.5 Decoding Arbitrary-Rate Wavelet Block Codes
11.5.1 Bounded-Distance Decoding of the (12, 4, 6) Wavelet
Code
11.5.2 Symbol Error Correction in the (7, 3, 5) MDS Code
11.5.3 Tail-Biting Trellises for Wavelet Block Codes
11.6 Summary
12 Wavelet Convolutional Codes
12.1 Structure of Wavelet Convolutional Codes
12.2 Algebraic Properties of Wavelet Convolutional Encoders
12.3 Syndrome Generators and Dual Encoders
12.4 Self-Dual and Self-Orthogonal Convolutional Codes
12.5 Time-Varying Wavelet Convolutional Codes and Bipartite
Trellises
12.6 Summary
Appendices
A Proofs of Chap. 4 in Part I
B Efficient Generation of PU Matrices
C Toy Examples of the PAC and the PDSS
D Proofs of Chap. 10 in Part III
E Brief Review of Trellis Structures
Bibliography
Index

章節(jié)摘錄

　　From a practical point of view,a complete classification of orthogonal filter banks is of greatinterest.The underlying reason is based on the observation that some filter banks are more usefulthan others in specific applications.We are interested in finding a minimal set of parameterized PU building blocks such that their multiplication generates all PU matrices.Such factorization enables the designer of the filter-bank system to easily optimize the free parameters of each buildingblock to enforce certain behavior(e.g.,maximizing the minimum distance in error-correcting codes).Furthermore,the parameters of each individual PU building block can be changed independentlywhile the PR property is preserved.Constant PU matrices are unitary matrices that can be realized using planar rotations over thereal field[199].A factorization of univariate PU matrices over the complex field has been performed in[199]by providing a degree-1 building block.It was conjectured that there also exists asimilar factorization for multivariate PU matrices.Nevertheless,Venkataraman and Levy disprovedthis conjecture by a counter example[202].A complete factorization of bivariate PU matrices over the complex field,using a two-level factorization,is provided in[59].It is shown that contrary to the general expectation,all bivariate PU matrices over the complex field can be generated by themultiplication of IIR PU building blocks in each of the two variables in arbitrary orders.A similarlevel-by-level factorization approach was taken in[58]for 2 x 2 PU matrices over fields of characteristic 2.Although a first-level factorization is always possible,a complete factorization seems tobe difficult to find.The factorization of PU matrices over finite fields is not a trivial extension of the complex-fieldtechniques.In[166],authors show that the factorization of PU matrices over GF(p),for a primep,using the previously introduced elementary PU degree-1 and degree-2 building blocks is notcomplete.In other words,there are orthogonal filter banks that cannot be represented by cascadingthese building blocks.The main results of this chapter are summarized below：1.In Sec.4.2,we introduce the elementary unitary building block over IF2,that acts like theHouseholder matrix.Any unitary matrix over IF2r can be represented as a product of theunitary building block and permutations of the identity matrix.

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