MediaKeys

Open Beta Documentation Amazon offers this technical documentation as part of a pre-release, open beta. The features described might change as Amazon receives feedback and iterates on the features. For the most current feature information, see the Release Notes.

The MediaKeys object represents a set of keys that an associated HTMLMediaElement can use for decryption of media data during playback. It also represents a CDM instance.

For more information, see https://www.w3.org/TR/encrypted-media/#mediakeys-interface

Methods

createSession()

createSession(sessionType?): MediaKeySession

Creates a new MediaKeySession object.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeys-createsession.

Parameters

sessionType?

MediaKeySessionType

The type of session to create. The session type affects the behavior of the returned object.

Returns

MediaKeySession

getStatusForPolicy()

getStatusForPolicy(policy?): Promise<MediaKeyStatus>

Returns a MediaKeyStatus for a given MediaKeysPolicy.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeys-getstatusforpolicy

Parameters

policy?

MediaKeysPolicy

Returns

Promise<MediaKeyStatus>

setServerCertificate()

setServerCertificate(serverCertificate): Promise<boolean>

Provides a server certificate to be used to encrypt messages to the license server.

For more information, see https://www.w3.org/TR/encrypted-media/#dom-mediakeys-setservercertificate.

Parameters

serverCertificate

ArrayBuffer

The server certificate. The contents are Key System-specific. It must not contain executable code.

Returns

Promise<boolean>

Promise Resolved when certificate is successfully set. Reject if failed.

Last updated: Sep 30, 2025