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RSA Accumulators And Proving Knowledge

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An accumulator allows Bob to add values onto a fixed-length digest, and to provide proof of the values added, without revealing them within the accumulated value. In this case, we will use a basic RSA method to make commitments to data elements, and then create proofs that these elements exist within the commitment [1]. So, here’s a basic method of proving knowledge of something, without revealing other things:

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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.