A zero-knowledge proof is a cryptographic method that lets one party prove to another that a statement is true without revealing any information beyond the validity of the statement itself. The protocol works through a series of challenges and responses where the prover demonstrates knowledge without exposing the underlying secret.
Zero-knowledge proofs satisfy three properties: completeness (an honest prover always convinces an honest verifier), soundness (a dishonest prover cannot fool the verifier), and zero-knowledge (the verifier learns nothing beyond the truth of the statement). These proofs are the foundation of modern privacy-preserving systems.
ZK proofs are used in blockchain privacy (zk-SNARKs, zk-STARKs), identity verification, and secure authentication. They enable scenarios like proving you're over 18 without revealing your birthdate, or proving a transaction is valid without revealing the sender, receiver, or amount.
Private, zero-data-retention search powered by Exa. Your queries leave no trace.
Zero Data Retention: In ZDR mode, we will not cache your search results and we will not even update the TTL of a cache hit. Your queries pass through to Exa and back to your browser with no trace left behind.
Already have an account? Log in