发明名称 |
METHOD AND APPARATUS FOR ALLOWING SOFTWARE ACCESS TO NAVIGATIONAL DATA IN A DECRYPTED MEDIA STREAM WHILE PROTECTING STREAM PAYLOADS |
摘要 |
A method, apparatus and system enabling software access to navigational data in a decrypted media stream while protecting stream payloads. In one embodiment, a filter may route an encrypted content stream and associated information to a secure partition having a trusted computing component for decryption. Upon decryption, the trusted computing component may store the decrypted payload of the content in a secure storage location accessible to the trusted computing component. Thereafter, the decrypted navigational header information of the content may be used to navigate to the decrypted content via a trusted component such as a trusted rendering unit in the secure partition. |
申请公布号 |
US2014223180(A1) |
申请公布日期 |
2014.08.07 |
申请号 |
US201414249217 |
申请日期 |
2014.04.09 |
申请人 |
Maliszewski Richard;Shippy Keith L.;Joshi Ajit P. |
发明人 |
Maliszewski Richard;Shippy Keith L.;Joshi Ajit P. |
分类号 |
H04L29/06 |
主分类号 |
H04L29/06 |
代理机构 |
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代理人 |
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主权项 |
1. A method, comprising:
receiving, by a source filter of a computing device, a monolithically encrypted media stream; identifying, by the source filter, a media type of the monolithically encrypted media stream and header parameters associated with the media type; and providing, by the source filter, to a trusted decryption module, the monolithically encrypted media stream with the header-match pattern and the header-match mask, to decrypt the media stream, wherein the header-match pattern contains a description of an expected pattern of bits in a header of the media stream, and wherein the header-match mask contains a pattern of bits to be ignored if present in the header of the media stream. |
地址 |
Forest Grove OR US |