What is: Digital Restrictions Management (DRM)

• technology that proponents "claim" protects copyright related rights.

• everyone must ask how this is accomplished, and what the costs are!

• Technological Protection Measures (TPM) limit access to authorized persons, and encode identity information (digital signatures, watermarks)

• Access Controls often compared to digital locks which keep people without keys out, denying access to unauthorized persons

• copyright holders want to give access to authorized persons

• copyright is a set of legal tools which limit what people who already have access can do with content

• Access Controls and copyright seek to accomplish different goals. One can't be used to protect the other

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