How Does Peggy Prove Her Age, Without Giving Away Her Age?

Prof Bill Buchanan OBE FRSE
Coinmonks
Published in
5 min readJul 31, 2018

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The method defined in this article is here, and is well known in the literature. So let’s have a bit of fun with it, in order that we can illustrate why we should move to a world where we do not send out our core data, but just prove that we know things.

Introduction

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Prof Bill Buchanan OBE FRSE
Coinmonks

Professor of Cryptography. Serial innovator. Believer in fairness, justice & freedom. Based in Edinburgh. Old World Breaker. New World Creator. Building trust.