Disintermediation

Encryption

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Blockchains use Elliptical Curve Cryptography (ECC) to authenticate users and authorise transactions. These notes introduce the field of cryptography and explains how basic cryptographic methods work.1 To begin with the absolute basics, encryption generally works by taking a message and representing it as a series of numbers2 which are then turned into a series of […]

Disintermediation

Blockchain from the ground up: Part 1

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blockchains from the ground up

How to maintain a reliable list across a small network without a central authority This is part 1 of an introduction to the key features of a generalised blockchain. I haven’t included references to Bitcoin or any particular digital currencies or blockchain implementations. This is because a digital currency is just one application of blockchain […]

Disintermediation

Blockchains from the ground up: Part 2

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Maintain an accurate list of transactions across a large group of users, without a central authority This is part 2 of an introduction to the key features of a generalised blockchain. Part 1 introduced key features of immutable record creation between 2 parties using public key cryptography. Part 2 explores how a network of users […]

Disintermediation

Digital currencies: the basics

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Digital currencies are often discussed in the context of finance, technology and economics. The Blockchain – the technology which applications like Bitcoin are built on – is significant because it removes the need for trust or an intermediary between unrelated parties transacting with each other. So far, the most influential and famous digital currency is Bitcoin. This post […]