Invention Grant
- Patent Title: Verifying authenticity of playback device
- Patent Title (中): 验证播放设备的真实性
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Application No.: US13345586Application Date: 2012-01-06
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Publication No.: US08612771B2Publication Date: 2013-12-17
- Inventor: Mitch Zollinger , Filip Paun , Scott G. Kelly
- Applicant: Mitch Zollinger , Filip Paun , Scott G. Kelly
- Applicant Address: US CA Los Gatos
- Assignee: Netflix, Inc.
- Current Assignee: Netflix, Inc.
- Current Assignee Address: US CA Los Gatos
- Agency: Patterson & Sheridan, LLP
- Main IPC: H04L9/28
- IPC: H04L9/28

Abstract:
One embodiment of the invention sets forth a mechanism for verifying the authenticity of a device before transmitting digital content to the device. In operation, the device stores a device key that is generated at manufacture-time using a pre-determined cryptographic key and the device identifier. In operation, the device generates a proof of possession from the application data and the stored device key. When verifying the device authenticity, a device key is derived from the master key and the device identifier then a proof of possession is derived from the derived device key and the application data obtained from the device. If the derived proof of possession matches the received proof of possession, then the authenticity of the device can be verified.
Public/Granted literature
- US20130179695A1 VERIFYING AUTHENTICITY OF PLAYBACK DEVICE Public/Granted day:2013-07-11
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