Patent ID: 9172547
Filing Date: 2015-10-27
Classification: H04L,H04N

Abstract:
1. An apparatus for verifying a digital signature for a digital data, the apparatus comprising: a first memory configured to store a first verification key; a second memory configured to store the digital data, the digital data comprising at least one of a boot code for the apparatus and a second stage authentication key to be used to further authenticate the digital data; a processor configured to, upon a power up or a reset of the apparatus, receive the digital data and a digital signature, and to verify the digital signature by processing the digital signature with the first verification key; wherein the first memory is further configured to store a second verification key, wherein the first verification key and the second verification key respectively correspond to a key of a first signatory entity and a key of a second signatory entity; and wherein the processor is further configured to verify the digital signature by processing the digital data with the second verification key.