Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent
1998-01-16
2000-06-13
Palys, Joseph E.
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
G06F 1214, G06F 1100, G11B 2328
Patent
active
060761652
ABSTRACT:
A method for authenticating digital storage devices, including compact discs, CD-Roms, DVDs and floppy discs, is provided. A predetermined "fingerprint" code is embedded in one or more of the parity bytes which are always appended to the end of data frames for the purpose of detecting and correcting errors in the data frames as they are read from the digital storage devices by playback devices, such as CD players, computers, and DVD players. The "fingerprint" code is embedded during the mastering process of the originally-produced, authentic storage device by a "fingerprint" encoder implemented by either hardware or software. The "fingerprint" is not transferred to target storage devices when the original storage device is copied because standard duplicating equipment do not have the "fingerprint" encoder which will be used by mastering equipment. If one attempts to use an unauthorized duplicate copy of an authentic storage device, a "fingerprint" detector in the playback device will detect whether the predetermined "fingerprint" is present and act accordingly.
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Kananen Ronald P.
Martin Willie
Palys Joseph E.
Sony Corporation
Sony Electronics Inc.
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