SYSTEM, TERMINAL, NETWORK ENTITY, METHOD AND COMPUTER PROGRAM PRODUCT FOR AUTHORIZING COMMUNICATION MESSAGES

摘要

A system, terminal, method, and computer program product use a capability certificate to authorize a sender to send a communication message to a recipient, such that the recipient can quickly and easily determine whether to receive the message. In this regard, a system for controlling receipt of a communication message by a recipient comprises a sending terminal and a receiving terminal. The sending terminal may be capable of sending the communication message from a sender. The receiving terminal may be capable of determining if the communication message is cryptographically bound to a capability certificate, such that the receiving terminal receives the communication message if the communication message is cryptographically bound to the capability certificate. Determining if the communication message is cryptographically bound to a capability certificate may comprise determining if the communication message is signed by the sender using a private encryption key of the sender.