Patent ID: 7136838

Claim:
A method for a server to provide to a client computer a digital license of one or more rights to render digital content, the digital content encrypted with a decryption key, the method comprising: receiving, from the client computer, a license request, the license request containing a key identifier that identifies the decryption key and a client certificate associated with the client computer, the client certificate including a public key associated with the client computer; responsive to the request, generating a license response including a digital rights license, the decryption key identified by the key identifier, and at least one server certificate to be used by the client computer to validate the license response; and transmitting the license response to the client computer, wherein the generating comprises: applying the key identifier as an input to an algorithm by which the decryption key is produced; encrypting the decryption key with the public key to obtain an encrypted decryption key; and generating the license response including the encrypted decryption key, and at least one certificate to be used by the client computer to validate the license response.