Probabilistic signature scheme

A probabilistic signature scheme is a special type of security system used to verify the identity of someone signing a document. It works by creating something called a signature, which is like a unique fingerprint that only the person signing the document is able to create. When the person signs the document, the signature is compared to another signature stored in the system to see if they match. If the signatures match, the system will verify that the document is signed by the right person.