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A zero-knowledge password proof is a special kind of zero-knowledge proof of knowledge that addresses the limited size of passwords. [ citation needed ] In April 2015, the one-out-of-many proofs protocol (a Sigma protocol ) was introduced. [ 14 ]
A common use of a zero-knowledge password proof is in authentication systems where one party wants to prove its identity to a second party using a password but doesn't want the second party or anybody else to learn anything about the password. For example, apps can validate a password without processing it and a payment app can check the ...
A list of zero-knowledge proof protocols and libraries is provided below along with comparisons based on transparency, universality, and plausible post-quantum security. A transparent protocol is one that does not require any trusted setup and uses public randomness.
Photo by Clint Adair on Unsplash The following post was written and/or published as a collaboration between Benzinga’s in-house sponsored content team and a financial partner of Benzinga. The ...
One particular motivating example is the use of commitment schemes in zero-knowledge proofs.Commitments are used in zero-knowledge proofs for two main purposes: first, to allow the prover to participate in "cut and choose" proofs where the verifier will be presented with a choice of what to learn, and the prover will reveal only what corresponds to the verifier's choice.
Although several of the forms of EKE in this paper were later found to be flawed [clarification needed], the surviving, refined, and enhanced forms of EKE effectively make this the first method to amplify a shared password into a shared key, where the shared key may subsequently be used to provide a zero-knowledge password proof or other functions.