Zero-knowledge proof

Zero-knowledge proofs are a class of cryptographic protocol that confirms knowledge without revealing excess data, with applications in cybersecurity, financial transactions and blockchain technology.

In cryptography, a zero-knowledge proof or zero-knowledge protocol is a met (the prover) can prove to another party (the verifier) that a given statement is true while the prover avoids conveying any additional information apart from the fact that the statement is indeed true.