In A World With No Encryption Keys: Shamir’s No-key Protocol

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Why do we need encryption keys to pass secret? Well, it is a convenient way for Bob and Alice to share something that Eve can’t get access too. But could we just pass messages without needed to know encryption keys, or even using key-based encryption? Well, the magic of discrete logs comes to our rescue here.

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Prof Bill Buchanan OBE FRSE
ASecuritySite: When Bob Met Alice

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