Patent ID: 8352373
Filing Date: 2013-01-08
Classification: G06F,G06Q,G07F,H04L,H04N

Abstract:
1. A method, comprising: sending a user access request for content from a computing device to a remote computer system; responsive to the user access request, receiving, at the computing device, a first key and an encrypted content control program from the remote computer system; decrypting the content control program using a secret key; decrypting the content on the computing device using the first key and the content control program; permitting a user to use the decrypted content within the computing device; and after use of the decrypted content within the computing device and in response to the user initiating a transfer of the content external to the computing device, re-encrypting the decrypted content prior to the transfer, wherein said re-encrypting is performed using a second key, the second key being distinct from the secret key, and the content control program.