US 2009/0208018 A1 · DATA TRANSFER DEVICE

Abstract

A data transfer device for transferring data to a removable data storage item. The data transfer device receives content data to be stored to the removable data storage item, encrypts the content data using an encryption key, and transforms at least one of predetermined reference data and the encryption key. The data transfer device also encrypts the transformed predetermined reference data using the encryption key or encrypts the predetermined reference data using the transformed encryption key, and then stores the encrypted content data and the encrypted transformed/predetermined reference data to the removable data storage item.

Claims15

Dependent claims

A data transfer device for transferring data to a removable data storage item, the data transfer device being operable to:

(a) receive content data to be stored to the removable data storage item;
(b) encrypt the content data using an encryption key;
(c) transform at least one of predetermined reference data and the encryption key;
(d)(i) encrypt the transformed predetermined reference data using the encryption key;
or
(d)(ii) encrypt the predetermined reference data using the transformed encryption key;
and
(e) store the encrypted content data and the encrypted transformed/predetermined reference data to the removable data storage item.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/239,806Filed 28 Sep 2008

Priority

GB 0803052.020 Feb 2008

Published

20 Aug 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

G11B 20/00086
Signal processing not specific to the method of recording or reproducing; Circuits therefor: circuits for prevention of unauthorised reproduction…
G06F 21/606
Protecting data: by securing the transmission between two devices or processes
G06F 21/80
To assure secure storage of data: in storage media based on magnetic or optical technology, e.g. disks with sectors
G11B 20/0021
Circuits for prevention of unauthorised reproduction or copying, e.g. piracy: involving encryption or decryption of contents recorded on or…

Data transfer device

Life of this patent

Data transfer device

Life of this patent

Abstract

Claims15