DCF File Documentation

Overview

Feature Value
Format Name DRM Content Format (DCF)
File Extension .dcf
MIME Type application/vnd.oma.drm.content
Developed by Open Mobile Alliance (OMA)
DRM Type OMA DRM
Encryption Commonly AES, CMLA-OMA v2
Protection Mechanism Content encryption and secure key management
Main Use Protection of mobile content distribution
Key Management Forward-lock, Combined Delivery, Separate Delivery
Content Types Images, Audio, Video, Text
Compression Depends on the type of the original file
File Identification Unique Content ID
Copy Protection Yes
Forward-lock Preventing content from being forwarded to other devices
Interoperability Can be used across multiple devices supporting OMA DRM
Rights Expression Language OMA REL
Licensing Rights objects specifying permissions
Content Packaging Encapsulated in DCF format
Security Features Integrity protection, non-repudiation
Compatibility Backward compatibility with older OMA DRM versions
Specific Applications Mobile phones, PDAs