Schnorr Identification Scheme

Definition ∞ The Schnorr Identification Scheme is a cryptographic protocol that allows a user to prove their identity to a verifier without revealing any secret information. It is a zero-knowledge proof of knowledge for a discrete logarithm, demonstrating possession of a private key corresponding to a public key. This scheme is known for its simplicity and efficiency, forming a foundation for various digital signature algorithms. It provides a secure way to authenticate without transmitting sensitive credentials.
Context ∞ Crypto news often references the Schnorr identification scheme when discussing advancements in digital signatures, multi-signature wallets, or privacy-enhancing protocols. Discussions center on its security properties, such as resistance to impersonation, and its efficiency compared to other signature schemes. The adoption of Schnorr signatures in protocols like Bitcoin’s Taproot upgrade highlights its practical relevance for improving transaction privacy and efficiency.