Discusses how to choose and use cryptographic primitives, how to implement cryptographic algorithms and systems, how to protect each part of the system and why, and how to reduce system complexity and increase security. The ultimate guide to cryptography, updated from an author team of the world's top cryptography experts. Cryptography is vital to keeping information safe, in an era when the formula to do so becomes more and more challenging. Preface to Cryptography Engineering. Preface to Practical Cryptography (the 1st Edition). Part I Introduction. Chapter 1 The Context of Cryptography. Chapter 2 Introduction to Cryptography. Part II Message Security. Chapter 3 Block Ciphers. Chapter 4 Block Cipher Modes. Chapter 5 Hash Functions. Chapter 6 Message Authentication Codes. Chapter 7 The Secure Channel. Chapter 8 Implementation Issues (I). Part III Key Negotiation. Chapter 9 Generating Randomness. Chapter 10 Primes. Chapter 11 Diffie Hellman. Chapter 12 RSA. Chapter 13 Introduction to Cryptographic Protocols. Chapter 14 Key Negotiation. Chapter 15 Implementation Issues (II). Part IV Key Management. Chapter 16 The Clock. Chapter 17 Key Servers. Chapter 18 The Dream of PKI. Chapter 19 PKI Reality. Chapter 20 PKI Practicalities. Chapter 21 Storing Secrets. Part V Miscellaneous. Chapter 22 Standards and Patents. Chapter 23 Involving Experts. Bibliography. Index.