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Title:
RECORD CARRIER, METHOD FOR WRITING INFORMATION ON RECORD CARRIER AND COMPUTER SYSTEM
Document Type and Number:
Japanese Patent JP2011181179
Kind Code:
A
Abstract:

To provide a record carrier for storing a digital work.

The record carrier includes access information for gaining access to the digital work and a secondary channel in which secondary channel information is stored which is used for encrypting, decrypting or verifying the access information. In order to prevent, hinder or discourage tampering with the access information, the secondary channel is stored on the record carrier on substantially the same physical location as the access information. In a preferred embodiment, the secondary channel information is changed when the access information has changed. This actualizes a record carrier for which a replay-attack is prevented. The invention further relates to a method for recording a digital work on a record carrier, a device for recording and a device for reading.


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Inventors:
STARING ANTONIUS A M
Application Number:
JP2011127372A
Publication Date:
September 15, 2011
Filing Date:
June 07, 2011
Export Citation:
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Assignee:
UQE LLC
International Classes:
G06F12/14; G11B20/10; G06F1/00; G06F21/62; G11B11/00; G11B20/00; G11B20/12; G11B20/14; H03M5/14; H03M7/46; H04L9/00; H04L9/32
Domestic Patent References:
JPH11283327A1999-10-15
JPH0619392A1994-01-28
JP2001043138A2001-02-16
JP2001189021A2001-07-10
JP2000124887A2000-04-28
JP2001069133A2001-03-16
JPH11283327A1999-10-15
JPH0619392A1994-01-28
JP2001043138A2001-02-16
JP2001189021A2001-07-10
JP2000124887A2000-04-28
JP2001069133A2001-03-16
JP2001016195A2001-01-19
JPH09185501A1997-07-15
JP2000207829A2000-07-28
JP2000076360A2000-03-14
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito



 
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