Two balls and the colour-blind friend

Zero-knowledge proof cryptography is something that I have lots of interest in. It’s a type of cryptography that allow a prover to prove to a verifier that a certain statement is true, without revealing anything else apart from that statement. ZK-SNARKS, a variant of zero-knowledge proofs, is being built into Ethereum (it already exists in zCash). In this blog post I’ll refer to a very simple story that explain how zero-knowledge proofs work. Continue reading “Two balls and the colour-blind friend”