A method, receiver, and server enable content protection over broadcast channels. A method for receiving a media license includes receiving broadcast media data including at least a portion that is protected and requesting a message from a content decryption module (CDM) of the receiver. The method includes receiving a license signaling message including encrypted license data and identifying one or more hash codes in the license signaling message. Additionally, the method includes identifying the encrypted license data for the receiver based on a mapping between the one or more hash codes and a hash of the message from the CDM. A server for providing a media license sends, to a receiver or a group of receivers, a license signaling message including encrypted license data and a license message hash indicating a hash code used to identify the receiver or the group of receivers for the encrypted license data.