DRM -- digital rights management

[David Shaw]

On Apr 12, 2010, at 2:33 PM, M.B.Jr. wrote:

> Hi,
> I have this simple question (sorry for it), regarding "digital rights
> management".
> 
> As I understand, DRM in essence is the use of asymmetric cryptography,
> which turns simple public keys into not-publicly-available public
> keys.
> 
> Is it correct?

No.  DRM is a collective term for the various means of controlling use of media in one way or another.  It's possible to use asymmetric crypto as part of a DRM scheme, but this is not a requirement, or inherent in the idea of DRM.

David