Ring Signature
Also known as: Group Signature, Anonymous Signature, Obfuscated Signing Method
A privacy-preserving cryptographic technique that hides the true signer among a group of possible signers.
A ring signature is a cryptographic method that allows a member of a group to sign a message on behalf of the group without revealing which member actually signed it. It provides signer anonymity while ensuring message authenticity. Used in privacy-focused cryptocurrencies like Monero, ring signatures obscure transaction origins, making it difficult to trace the sender. This technique enhances confidentiality and fungibility in crypto transactions. Ring signatures differ from multi-signatures as they hide the signer rather than requiring multiple parties to authorize an action.