Bitcoin

Zero-Knowledge Proofs and the Meaning of Life Warning: This post has KaTeX and mermaid.js enabled, so if you want to view the rendered math formulas, and diagrams, you’ll have to unfortunately enable JavaScript. Lately, I’ve been diving a little into the world of Zero-Knowledge Proofs. The idea is to prove that you know something without revealing what you know. More specifically, a Zero-Knowledge Proof is a cryptographic protocol that allows a prover to convince a verifier that a statement is true without revealing any information beyond the validity of the statement....

The Polynomial king and he can do anything! Warning: This post has KaTeX enabled, so if you want to view the rendered math formulas, you’ll have to unfortunately enable JavaScript. In this post, we’ll talk about Shamir’s Secret Sharing (SSS), a cryptographic algorithm that allows us to split a secret into multiple parts, called shares, in such a way that the secret can only be reconstructed if a certain number of shares are combined....

Warning: This post has KaTeX enabled, so if you want to view the rendered math formulas, you’ll have to unfortunately enable JavaScript. In this post, let’s dive into a topic that is very important for anyone who uses the internet: passwords. We’ll cover what the hell is Entropy, good password practices, and how it relates to Bitcoin “seed phrases”1. Entropy Before we go into passwords, I’ll introduce the concept of Entropy....

Euclid’s one-way function Warning: This post has KaTeX enabled, so if you want to view the rendered math formulas, you’ll have to unfortunately enable JavaScript. This is the companion post to the cryptography workshop that I gave at a local BitDevs. Let’s explore the basics of cryptography. We’ll go through the following topics: One-way functions Hash functions Public-key cryptography DSA Schnorr Why we don’t reuse nonces? Why we can combine Schnorr Signatures and not DSA?...