INDICE: 1. NET Cryptography and Security. The Nature of This Book. Risks Are Everywhere. The Nature of Cryptography and Security. Why Cryptography and Security Are Important. What Cryptography and Security Can and Cannot Do. Windows Security Comes of Age. The .NET Framework and the CLR. How the .NET Framework Simplifies Security. Reliability and the .NET Platform. Managed Code and Type Safety. .NET Cryptography Programming. .NET Security Programming. Role-Based Security and Principals. CAS, Evidence, Policy, and Permissions. Summary. 2. Fundamentals of Cryptography. Security and Keeping Secrets. Basic Cryptographic Terminology. Secret Keys Versus Secret Algorithms. Classical Techniques for Keeping Secrets. Brute-Force Attack Work Factor. Arbitrary Precision Arithmetic. Steganography. Modern Ciphers. Cryptography and the .NET Framework. Symmetric Cryptography. Asymmetric Cryptography. Cryptographic Algorithms. Cryptographic Protocols. Cryptanalytic Attacks. Issues in Human Interaction and Trust. Risk and Benefit. Other Important Concepts. Summary. 3. Symmetric Cryptography. Symmetric Ciphers. DES. Modes of Operation. Triple DES. Rijndael. RC2. Programming with .NET Symmetric Cryptography. The Main Cryptography Classes. The SymmetricAlgorithm Class. SymmetricAlgorithm-Derived Classes. The SymmetricAlgorithms Example. Cryptographic Streams. Avoiding Weak Keys. Key Exchange Issues. Encrypted Hash Codes and Message Integrity. Keyed Hash Functions and Message Integrity. Summary. 4. Asymmetric Cryptography. Problems with Symmetric Algorithms. The Key Exchange Problem. The Trust Problem. The Idea Behind Asymmetric Cryptography. Using Asymmetric Cryptography. The Combination Lock Analogy. Trapdoor One-Way Functions. Advantages of the Asymmetric Approach. Combining Asymmetric and Symmetric Algorithms. Existing Asymmetric Algorithms. RSA: The Most Used Asymmetric Algorithm. Underpinnings of RSA. A Miniature RSA Example. Caveat: Provability Issues. Programming with .NET Asymmetric Cryptography. An RSA Algorithm Example. Saving Keys as XML. Digital Certificates. Summary...
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