Patent ID: 8693694
Filing Date: 2014-04-08
Classification: H04L,H04N

Abstract:
1. A recording device comprising a non-transitory recording medium having controller key information [K c ], controller ID information [ID cu ], media key information [K md i ] and media certification information [Cert media ] stored therein, and a processor configured to: receive, from a host device, a first random number [RN verify the first signature information attached to the host certification information [Cert generate a second random number [RN generate a third random number [M generate a unique ID information [ID receive, from a host device, a second value [H generate a signature to be verified at the host device, for the first value [M generate a first shared key information corresponding to a second shared key information generated at the host device, wherein the first shared key information is based on the second value [H