Integrated circuit for digital rights management

Details Integrated circuit for digital rights management Integrated circuit for digital rights management

2006-06-06

2006-06-06

Song, Hosuk (Department: 2135)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S193000

Reexamination Certificate

active

07058818

ABSTRACT:
An ASIC for implementing digital rights management includes a processor for requesting encrypted digital data from a server and decrypting the data, and a player for transforming the decrypted data to analog signals. Preferably, the ASIC is tamper-resistant. Preferably, all the management code of the ASIC is stored on a ROM in the ASIC. A device for receiving, decrypting and displaying encrypted digital data includes the ASIC, and also a transceiver for communicating with the server, a display mechanism for displaying the analog signals, and a nonvolatile memory for storing the encrypted data. A system for storing and displaying digital data includes both the server and the device. Preferably, the server is configured to send to the device only the encrypted digital data and associated decryption keys.

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New Security Issues Raised By Open Cards—Girard et al, (Gemplus R & D, Cedex France 13881) Information security Technical Report, vol. 4, pp. 19-27 Elsevier May 1999.
Physical Security Devices for Computer Subsytems: A Survey of Attacks and Defenses—Steve H. Weingart Secure Systems and Smart Card Group IBM Thomas J Watson Research Center, Hawthorne NY weingart@us.ibm.com.

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