How does the Doc-Witness OpSecure CD-ROM work?
(2002/08/22) The disc has an embedded secure micro (like a smart card) that is activated when the laser light strikes a photodetector. The light is converted to electrical impulses, the impulses drive the chip, and if all goes well the results are presented to the drive via an embedded light-emitting diode. Making an exact duplicate of the disc would be very difficult. It’s unclear whether this technology actually makes it harder to get a working copy of the contents. The scheme seems to essentially be a combination of an “uncopyable” disc and a hardware dongle, both of which have been around for years (neither of which have brought an end to piracy). The company’s web site is http://www.doc-witness.com/. News articles: – http://www.technologyreview.com/articles/prototype10902.asp?
(2002/08/22) The disc has an embedded secure micro (like a smart card) that is activated when the laser light strikes a photodetector. The light is converted to electrical impulses, the impulses drive the chip, and if all goes well the results are presented to the drive via an embedded light-emitting diode. Making an exact duplicate of the disc would be very difficult. It’s unclear whether this technology actually makes it harder to get a working copy of the contents. The scheme seems to essentially be a combination of an “uncopyable” disc and a hardware dongle, both of which have been around for years (neither of which have brought an end to piracy). The company’s web site is http://www.doc-witness.com/. News articles: – http://www.technologyreview.com/arti…e10902.asp?
The disc has an embedded secure micro (like a smart card) that is activated when the laser light strikes a photodetector. The light is converted to electrical impulses, the impulses drive the chip, and if all goes well the results are presented to the drive via an embedded light-emitting diode. Making an exact duplicate of the disc would be very difficult. It’s unclear whether this technology actually makes it harder to get a working copy of the contents. The scheme seems to essentially be a combination of an “uncopyable” disc and a hardware dongle, both of which have been around for years (neither of which have brought an end to piracy). The company’s web site is http://www.doc-witness.com/.
