Secure distribution of portable game software

Details Secure distribution of portable game software Secure distribution of portable game software

2007-10-02

2007-10-02

Vu, Kim (Department: 2135)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C726S002000, C713S191000

Reexamination Certificate

active

10427793

ABSTRACT:
Game software for use in video game systems can be downloaded from Internet servers to game consoles in encrypted form to protect the software from being copied by software pirates. A small but essential part of the game software can be encrypted for use with a larger amount software that is not encrypted. The encrypted portion is downloaded into a secure cryptoprocessor preferably in a memory cartridge that plugs into a game system. This cryptoprocessor decrypts the downloaded software, stores it in on-chip EEPROM and then executes it, all in the same cryptoprocessor. The non-encrypted software is processed in the game system by a conventional processor which depends on data generated by program instructions decrypted and executed in the secure cryptoprocessor.

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Data Encryption Standard (DES); FIPS PUB 46-3, Reaffirmed Oct. 25, 1999; U.S. Department of Commerce/National Institute of Standards and Technology.
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