发明名称 |
SECURE VIDEO OUPUT PATH |
摘要 |
Systems and methods for secure delivery of output surface bitmaps to a display engine. An example processing system comprises: an architecturally protected memory; and a processing core communicatively coupled to the architecturally protected memory, the processing core comprising a processing logic configured to implement an architecturally-protected execution environment by performing at least one of: executing instructions residing in the architecturally protected memory and preventing an unauthorized access to the architecturally protected memory; wherein the processing logic is further configured to provide a secure video output path by generating an output surface bitmap encrypted with a first encryption key and storing an encrypted first encryption key in an external memory, wherein the encrypted first encryption key is produced by encrypting the first encryption key with a second encryption key. |
申请公布号 |
US2015086012(A1) |
申请公布日期 |
2015.03.26 |
申请号 |
US201314036263 |
申请日期 |
2013.09.25 |
申请人 |
Chhabra Siddhartha;Savagaonkar Uday R.;Dewan Prashant;Durham David M.;Vembu Balaji;Kang Xiaozhu;Janus Scott;Martin Jason;Scarlata Vincent R. |
发明人 |
Chhabra Siddhartha;Savagaonkar Uday R.;Dewan Prashant;Durham David M.;Vembu Balaji;Kang Xiaozhu;Janus Scott;Martin Jason;Scarlata Vincent R. |
分类号 |
H04N7/167 |
主分类号 |
H04N7/167 |
代理机构 |
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代理人 |
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主权项 |
1. A processing system, comprising:
an architecturally protected memory; and a processing core communicatively coupled to the architecturally protected memory, the processing core comprising a processing logic configured to implement an architecturally-protected execution environment by performing at least one of: executing instructions residing in the architecturally protected memory and preventing an unauthorized access to the architecturally protected memory; wherein the processing logic is further configured to provide a secure video output path by generating an output surface bitmap encrypted with a first encryption key and storing an encrypted first encryption key in an external memory, wherein the encrypted first encryption key is produced by encrypting the first encryption key with a second encryption key. |
地址 |
Hillsboro OR US |