Non-Interactive Zero-Knowledge (NIZK)

Non-Interactive Zero-Knowledge (NIZK) is a cryptographic method where one party (the prover) can convincingly demonstrate to another (the verifier) that they know a specific secret or that a statement is true, without revealing any additional information. The “non-interactive” aspect means this proof is sent as a single message, eliminating the need for back-and-forth communication. NIZK is valuable for enhancing privacy and security in digital transactions, enabling trust without exposing sensitive details, such as verifying membership in a group or the validity of a computation, without revealing underlying data.