Patent ID: 9214183
Filing Date: 2015-12-15
Classification: G11B,H04L

Abstract:
1. A system for storing digital data, the system comprising: a data storage unit; a physical uncloneable function (PUF) unit comprising an input for receiving a challenge and an output for producing a response to the received challenge; an identification unit that determines an identifier associated with the data storage unit; a representation unit that supplies a representation of the determined identifier to the PUF unit as the challenge and retrieving a corresponding response from the PUF unit, wherein the data storage unit is linked to a hard property embedded in hardware through the PUF unit; a cryptographic unit that performs a cryptographic operation for at least one of securing and verifying a digital content item stored in the data storage unit, wherein the cryptographic operation is performed under control of a cryptographic key derived from the retrieved response.