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April 21, 2003
As Microsoft Corp. prepares to release the beta version of its anticipated
and controversial Rights Management Services, a small security company has been
quietly working on technology that could trump Microsoft's and make it easier
for companies to control digital content.
Cryptography Research Inc. has developed a technology that associates
security measures with each piece of content instead of using a generic
protection scheme for all copies. The security measures are contained in code
that runs on a virtual machine inside a playback device.
As the content is decrypted during playback, the virtual machine uses APIs in
the playback device to determine whether or how the playback should proceed.
The architecture includes a digital watermarking function that would let
content owners identify every legal copy of a given piece of content. If a legal
copy is duplicated, the illegal version could be traced. Under this system, each
playback device would have a unique set of keys for decrypting content.
The concept, which the company calls self-protecting digital content, grew
from research to uncover a DRM (digital rights management) solution amenable to
everyone in the debate over mandating copy protection.
"Both sides are missing the point. Mandating copy protection isn't
realistic," said Paul Kocher, president of Cryptography Research, based here.
"But [content owners] have a real problem. Piracy is illegal, and my job is to
solve the security problem."
Kocher said the company has had discussions with Hollywood studios about
licensing the technology.
Source: eWeek
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