Digital rights management (DRM) is access control technology for digital content such as music, ebooks, applications, video, and movies. Access control is based on a rights object associated with content. This rights object contains rules that limit the use, distribution, and duplication of content. DRM schemes such as OMA DRM v1 and OMA DRM v2 are developed by Open Mobile Alliance (OMA) but many device manufacturers have their proprietary DRM schemes as well.
A DRM system contains the following components: