Exploiting modulation-code redundancy
- 30 July 1997
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- Vol. 3109, 88-95
- https://doi.org/10.1117/12.280675
Abstract
Redundancy in modulation coding schemes for optical storage can be exploited for copy protection purposes. Two examples are given. One is a method of storing encryption key data in a manner that will not be transferred in byte by byte copying. The other makes a copy that is likely to be error prone.Keywords
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