What is zero-knowledge proof?

Zero-knowledge proof is a cryptographic protocol used to prove the truth of a statement without revealing the specific information of the statement. In zero-knowledge proof, the prover can prove to the verifier that he knows the correctness of a statement, and the verifier can only get the result of whether the statement is correct, but cannot obtain the specific content of the statement.

This protocol can be used to solve many privacy and security problems, such as proving that you have enough funds in electronic payment without revealing the account balance; or proving that you are a legitimate user in identity verification without revealing your real identity.

The core idea of ​​zero-knowledge proof is that through an interactive process, the prover can provide a series of evidence to convince the verifier of the truth of a statement without knowing the specific content of the statement. This protocol is usually based on mathematical problems, such as the classic example of zero-knowledge proof - the three-color problem of zero-knowledge proof. $ZK

In short, zero-knowledge proof is a privacy-preserving and security-preserving cryptographic protocol that can prove the truth of a statement without revealing the specific information of the statement.

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