System, method, and computer program product for providing digital rights management of protected content

Abstract From the Canadian patent

A system for providing digial rights management of protected content includes a client and a DRM manager. The client is capable of receiving at least one piece of content, the piece(s) of content being encrypted with at least one encryption key regardless of client user(s) authorized to access the piece(s) of encrypted content. To facilitate the client accessing one or more of the piece(s) of content, the DRM manager is capable of transferring the encryption key(s) to the client, the encryption key(s) being encrypted with a private key of a public key/private key pair unique to a client user associated with the client. The client can thereafter decrypt the encryption key(s) using …