Copyright
Brief Table of Contents
Table of Contents
Foreword
Preface
Acknowledgments
About this book
About the author
Chapter 1. Introduction to Bitcoin
What is Bitcoin?
The big picture
Problems with money today
The Bitcoin approach
How is Bitcoin used?
Other cryptocurrencies
Summary
Chapter 2. Cryptographic hash functions and digital signatures
The cookie token spreadsheet
Cryptographic hashes
Why are cryptographic hash functions useful?
How does a cryptographic hash function work?
Properties of a cryptographic hash function
Some well-known hash functions
Recap of cryptographic hashes
Exercises
Warm up
Dig in
Digital signatures
Typical use of digital signatures
Improving cookie token security
Preparation: John generates a key pair
Recap of key pairs
Where were we?
John signs his payment
Lisa verifies the signature
Private key security
Recap