Zero-knowledge is one type of verification process in which there are two parties, a prover, and a verifier. The two parties transmit certain information without revealing what the information is. The term “zero knowledge” comes from the fact that the first party, the prover, doesn’t disclose any information (zero information) but still proves that the statement is true, while the second party, the verifier, believes that the prover knows the information. Cryptographers usually use this verification method to increase security and privacy.
See also: node, active defense
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