The Magic of Shamir Secret Shares and Elliptic Curves

With secret sharing, we take a secret value and then share it with others. For example, we might have a share for Bob, Alice, Carol and Dave and then for three of them to come together to bring their shares together. For this, we define a threshold (t) and a number of shares (n). We reconstruct the shares we need at least t shares to come together to reveal the secret. If we have (t-1) shares it…

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Prof Bill Buchanan OBE

Prof Bill Buchanan OBE

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