Avoiding identity fraud and unwarranted calls by authorization mechanism in communication system

Abstract

Provided are systems, methods, and media for verifying a commission-based relationship in a communication system. An example method includes generating authorization information by an authorizer that is to be transmitted to a caller and forwarded by the caller to a callee upon a call being initiated between the caller and the callee, in which the authorization information includes at least authorizer identity information, callee identity information, and a caller public key. The method includes signing the authorization information with a private key of the authorizer and transmitting the signed authorization information to the caller. The caller is configured to generate a digital signature via a private key of the caller and transmit the digital signature and the signed authorization information to the callee. The callee is configured to verify the identity of authorizer, caller and callee and event information based on the authorization information.