United Technologies Corporation

Hisilicon Technologies Co., Ltd.

Beijing Novel-super Digital Tv Technology Co., Ltd.

Academy of Broadcasting Science, State Administration of Press, Publication, Radio, Film & Television

Academy of Broadcasting Science, National Radio and Television Administration

Peiyu Guo

Lei Wang

Xiaoxia Guo

Lei Zhang

Di Wu

Zhifan Sheng

Xingjun Wang

Zhonghua Fang

Zhijian Liang

Method for establishing a trust chain, comprising: requesting a third CA for a third key pair and a third certificate, writing a private key of the third key pair and the third certificate into a security storage area, the third certificate comprising model information of the smart television (SMTV) terminal and information of a public key of the third key pair. The SMTV terminal check its possession of a fourth certificate on every start, generate a unique fourth key pair in absence of a fourth certificate, submit online a public key of the fourth key pair and a unique identification of each SMTV terminal to a fourth CA to request for a fourth certificate, and send along the third certificate and a signature signed on the request with the private key of the third key pair; write the fourth certificate into the security storage area upon receiving the fourth certificate.

Smart television terminal and method for establishing a trust chain therefor

A digital rights management (DRM) method for an intelligent operating system comprises: acquiring a play list of media data to be played and encrypted media data; inquiring and acquiring one or more DRM application modules, wherein the DRM application module contains an identifier of a trusted application module; requesting DRM authorization by the DRM application module from a DRM server, judging a content permission and acquiring an encrypted content encryption key (ECEK) and transmitting the ECEK to a TEE; after judging that the content permission is legitimate; decrypting the ECEK acquired by the trusted application module which is in the TEE and corresponds to the trusted application module identifier to acquire a content encryption key (CEK), and decrypting the encrypted media data by using the CEK; and storing the decrypted media data in a security cache region for decoding and outputting.

Digital rights management (DRM) method and system for intelligent operating system

Growing community of inventors

Beijing, China

Peiyu Guo