公开(公告)号：US20160119302A1

公开(公告)日：2016-04-28

申请号：US14279316

申请日：2014-05-16

Applicant: Silicon Image, Inc.

Inventor： Ju Hwan Yi ,  Wooseung Yang ,  Myung Je Cho ,  Hoon Choi

IPC: H04L29/06

CPC classification number: H04L63/061 ,  G09G5/006 ,  G09G2358/00 ,  G09G2370/047 ,  G09G2370/12 ,  G09G2370/20 ,  H04L9/0861 ,  H04L9/0891 ,  H04L63/0457 ,  H04L63/06 ,  H04L63/062 ,  H04L63/126 ,  H04L2209/38 ,  H04L2209/60 ,  H04N21/436 ,  H04N21/4405 ,  H04N21/4623

Abstract: 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.

Abstract translation: 本文描述了用于接收和解密根据HDCP协议加密的媒体内容的系统。 耦合到多个内容信道的接收设备包括认证引擎来认证每个内容信道并生成与每个被认证的内容信道相关联的初始会话密钥。 内容通道可以是例如HDMI通道或MHL3通道。 接收到指示用于加密媒体内容的会话密钥的会话密钥指示符，并且生成更新的会话密钥。 接收设备还包括配置为使用更新的会话密钥来解密所接收的加密媒体内容的流密码引擎。 然后可以显示解密的媒体内容，例如在接收设备的显示器上显示。

公开(公告)号：US20150215058A1

公开(公告)日：2015-07-30

申请号：US14163981

申请日：2014-01-24

Applicant: Silicon Image, Inc.

Inventor： Ju Hwan Yi ,  Wooseung Yang ,  Myung Je Cho ,  Hoon Choi

IPC: H04J3/06 ,  H04W56/00

CPC classification number: G09G5/006 ,  G09G5/003 ,  G09G5/008 ,  G09G2370/10 ,  G09G2370/12 ,  H04L63/0428 ,  H04N21/4305 ,  H04N21/43635

Abstract: A mechanism for facilitating dynamic counter synchronization and packetization for data streams being communicated over communication devices is described. In one embodiment, a method includes detecting an audio/video (A/V) data stream being encrypted and/or decrypted using one or more high-bandwidth digital content protection (HDCP) engines, where the A/V data stream is communicated between a source device and a sink device. The method may further include dividing a video stream portion of the A/V data stream into a plurality of frames if the A/V data stream relates to a high-definition multimedia interface (HDMI), and synchronizing counter values with indicators within the plurality of frames.

Abstract translation: 描述了用于促进通过通信设备传送的数据流的动态计数器同步和分组化的机制。 在一个实施例中，一种方法包括使用一个或多个高带宽数字内容保护（HDCP）引擎检测正在加密和/或解密的音频/视频（A / V）数据流，其中A / V数据流在 源设备和宿设备。 该方法还可以包括：如果A / V数据流与高分辨率多媒体接口（HDMI）相关，则将A / V数据流的视频流部分分成多个帧，并将计数器值与多个帧内的指示符同步 的框架。