Secret Sharing: The Power of Polynomials(jetthays.com)
jetthays.com
Secret Sharing: The Power of Polynomials
https://www.jetthays.com/blog/polynomialSharing
2 comments
Generally if you pose a math problem to a reader you should work the problem out as an example instead of simply giving the blueprints for how to do it. Otherwise, it was informative.
Polynomial interpolation is a very simple idea that has profound consequences for threshold cryptography and sharing secrets among a group of mutually distrusting individuals.