Читать книгу Introduction to Blockchain Technology - Tiana Laurence - Страница 17

Blockchain is a combination of old technologies that have been structured in a new way. In this chapter you will learn more about the key technologies that are used to create a blockchain and the network that supports it. This will include cryptography, ledgers and public witness.

Cryptography is a crucial part of blockchain technology and has been around in one form or another for a very long time. The first known encoded messages occurred in Egypt and Mesopotamia over 3,000 years ago. You will learn about this in depth in the following sections, including how chains are created, what a cryptographic hash is and how encryption works.

In the following sections you will discover how blockchains are created and how the information is secured within them.

You will discover how blockchains use economic incentives to develop resilient public witnesses that adhere to an agreed-upon ruleset. These are the concepts of mining and cryptocurrency that spread the blockchain data across a network.