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AUTHENTICATION ENGINE AND STREAM CIPHER ENGINE SHARING IN DIGITAL CONTENT PROTECTION ARCHITECTURES
AUTHENTICATION ENGINE AND STREAM CIPHER ENGINE SHARING IN DIGITAL CONTENT PROTECTION ARCHITECTURES
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机译:数字内容保护体系结构中的认证引擎和流密码引擎共享
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摘要
A system for receiving and decrypting media content encrypted according to the HDCP protocol is described herein. A receiving device coupled to a plurality of content channels includes an authentication engine to authenticate each content channel and to generate an initial session key associated with each authenticated content channel. The content channels can be, for example, an HDMI channel or an MHL3 channel. A session key indicator indicating a session key used to encrypt media content is received, and an updated session key is generated. The receiving device also includes a stream cipher engine configured to decrypt received encrypted media content using the updated session key. Decrypted media content can then be displayed, for instance on a display of the receiving device.
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