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This is called a "zero-knowledge proof of knowledge". However, a password is typically too small or insufficiently random to be used in many schemes for zero-knowledge proofs of knowledge. A zero-knowledge password proof is a special kind of zero-knowledge proof of knowledge that addresses the limited size of passwords. [citation needed]
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 ...
Download as PDF; Printable version; In other projects Wikidata item; ... Zero-knowledge proof This page was last edited on 13 April 2012, at 20:15 (UTC). Text ...
Download as PDF; Printable version ... In cryptography, a proof of knowledge is an interactive proof in which the prover succeeds in 'convincing' a ... Zero-knowledge ...
Pass [5] showed that in the common reference string model non-interactive zero-knowledge protocols do not preserve all of the properties of interactive zero-knowledge protocols; e.g., they do not preserve deniability. Non-interactive zero-knowledge proofs can also be obtained in the random oracle model using the Fiat–Shamir heuristic.
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.
In addition, zero-knowledge services often strive to hold as little metadata as possible, holding only that data that is functionally needed by the service. The term "zero-knowledge" was popularized by backup service SpiderOak , which later switched to using the term "no knowledge" to avoid confusion with the computer science concept of zero ...
Zero knowledge may mean: Zero-knowledge proof , a concept from cryptography, an interactive method for one party to prove to another that a (usually mathematical) statement is true, without revealing anything other than the veracity of the statement