DRM PROTECTED VIDEO STREAMING ON GAME CONSOLE WITH SECRET-LESS APPLICATION

摘要

Techniques are disclosed for secure playback of protected multimedia content on a game console using a secret-less application. An SSO model can be used for client authentication at a key server, which eliminates the need of storing or using any secret information in the client application. Further, an encrypted content key generated by a content packager using a public key can be deployed in the key URI of a playlist file, which is sent to the key server. The key server can be configured to decrypt the content key using a corresponding private key. Further, the content key and unencrypted samples are protected in the game console client application from debugging and replay attacks by using additional security checks at both the client and key server. By storing secret information remotely from the game console and using the SSO model, DRM policies can be enforced on an untrusted client application.

主权项

1. A computer-implemented method for secure playback of protected multimedia content using a secret-less application, the method comprising:
receiving an access control credential from a security token service via a communications network; receiving, from a multimedia content server via the communications network, a playlist file having encoded therein a uniform resource identifier (URI) associated with a key server and a security token signed by the multimedia content server, the security token having encoded therein an encrypted content key associated with protected multimedia content; sending the access control credential and the encrypted content key to the key server via the communications network using a secure communications protocol; receiving a decrypted content key from the key server via the communications network using the secure communications protocol, the decrypted content key being configured for accessing the protected multimedia content; and playing back the protected multimedia content using the decrypted content key.