What is a zero-knowledge proof?

Today, when privacy is more and more concerned, zero-knowledge proofs shine in the application of privacy data protection. Simply put, a zero-knowledge proof describes a process whereby the prover can convince the verifier that a statement is correct without providing any useful information to the verifier.

Zero-knowledge proof relies on a series of mathematics and computer basic theories. If we trust mathematics, logic, and these basic theories, then we can understand that zero-knowledge proof is a technology that implements cryptography theory and is based on security. Suppose a virtual trusted third party is "simulated".