VdoCipherDRM License Server
A DRM license server issues the licenses that let an authorized device decrypt protected video. It authenticates each playback request, checks entitlement, and returns the content key wrapped for the device's Content Decryption Module, along with policy such as expiry, resolution caps, and offline rights.
What is a DRM License Server?
A DRM license server is the backend that issues licenses allowing an authorized device to decrypt protected video. It is the gatekeeper that turns an encrypted stream into playable content for the right viewer.
How It Works
When a device begins playback, its Content Decryption Module sends a license request. The license server verifies the request, checks entitlement (often via a token or OTP from your backend), and returns the content key wrapped so only that device's CDM can use it. The license also carries policy: expiry, maximum resolution per security level, offline permissions, and output-protection requirements.
Why It Is Hard to Run Yourself
- Multiple DRMs: Widevine, FairPlay, and PlayReady each need their own license logic and credentials.
- Apple requirements: FairPlay needs an Apple-approved deployment package.
- Uptime and scale: Every play depends on it, so it must be reliable and low-latency.
For Platform Owners
Most businesses use a hosted DRM provider that operates the license servers for all three DRMs, exposing simple token-based playback rather than requiring an in-house license infrastructure.