Exploiting modulation-code redundancy

Josh N. Hogan

doi:10.1117/12.280675

30 July 1997 Exploiting modulation-code redundancy

Josh N. Hogan

Proceedings Volume 3109, Optical Data Storage 1997 Topical Meeting; (1997) https://doi.org/10.1117/12.280675
Event: Optical Data Storage Topical Meeting '97, 1997, Tucson, AZ, United States

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.

Citation Download Citation

Josh N. Hogan "Exploiting modulation-code redundancy", Proc. SPIE 3109, Optical Data Storage 1997 Topical Meeting, (30 July 1997); https://doi.org/10.1117/12.280675

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