FIELD: copy protection technologies.
SUBSTANCE: method for copy protection of optical disks includes manufacturing a master disk for encoding data and authentication signature and recording encoded data and encoded authentication signature onto master disk, from which optical disk is formed. Data structures for authentication signature are selected in a way to create DSV problems for disk recording devices with possible recording. Aforementioned data structures are formed in a way to have DSV with significant alteration speed.
EFFECT: creation of method for protecting optical disks from copying with usage of authentication signature.
5 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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|
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|
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|
RU2280290C2 |
| INFORMATION CARRIER, RECORDING DEVICE AND READING DEVICE | 2001 |
|
RU2277267C2 |
