Designated Verifier Proof

Definition ∞ A Designated Verifier Proof is a cryptographic proof system where only a specific, predetermined party can verify the validity of a statement. Unlike standard zero-knowledge proofs that anyone can verify, this variant restricts verification capabilities. This technique offers enhanced privacy by ensuring that the proof’s validity cannot be universally broadcast or re-verified by unauthorized entities. It finds applications in scenarios requiring selective disclosure and controlled information access.
Context ∞ Designated verifier proofs are a subject of research and development in advanced cryptography, particularly for applications requiring stringent privacy and access control. While not yet widespread in mainstream crypto, their potential relevance to decentralized identity, confidential transactions, and selective data sharing on blockchains is considerable. Discussions involve balancing the benefits of restricted verification with the transparency principles often valued in public blockchain networks.