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HDCP (High-bandwidth Digital-content Copy Protection) Key management method and system

A management method and management system technology, applied in the field of HDCP Key management method and system, can solve problems such as error-prone, complicated HDCP Key management and use operations, set-top box unable to play, etc., to achieve the effect of ensuring production quality

Inactive Publication Date: 2014-12-24
SHENZHEN JIUZHOU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of this, it is necessary to provide a HDCP Key management method and system for the above-mentioned HDCP Key management and use operations that are cumbersome and error-prone, causing the set-top box to fail to play.

Method used

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  • HDCP (High-bandwidth Digital-content Copy Protection) Key management method and system

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] figure 1 is a flow chart of the HDCP Key management method in an embodiment, such as figure 1 As shown, the HDCP Key management method includes the following steps:

[0018] S10: Divide the HDCP Key data file containing N HDCP Keys, divide the N HDCP Keys, generate N HDCP Key units and save them in the database. Wherein, N is an integer.

[0019] At present, in production, most of them directly apply for HDCP Key data files containing N HDCP Keys at one time. Each time, according to the number of HDCP Keys required for production, a HDCP Key data file of a corresponding length is used,...

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Abstract

The invention relates to an HDCP (High-bandwidth Digital-content Copy Protection) Key management method and system. N HDCP Keys in an HDCP Key data file are segmented to generate an HDCP Key unit; when M encrypted HDCP Keys are required in production, M HDCP Keys are searched from a database and are successfully encrypted, and the required HDCP Keys in production are successfully encrypted one to one, so that the problems that the file is truncated by mistake, the number of the HDCP keys is insufficient, and the situation that the HDCP Keys are unsuccessfully encrypted in the encryption process is not found are solved, and the situation that wrong HDCP Keys do not occur in production is ensured, and thus a set-top box can play high-definition programs, and the production quality of the set-top box is ensured.

Description

technical field [0001] The present invention relates to the communication field, in particular to an HDCP Key management method and system. Background technique [0002] During the production process of the set-top box, HDCP Key (HDMI high-definition authorization code) needs to be written into the set-top box. Different encryption algorithms are used according to different chip platforms, and the original HDCP Key does not distinguish between platforms. [0003] At present, the management and use of HDCP Key during production is usually to apply for a large number of HDCP Key data files at one time, each time according to the number of HDCP Keys required by the actual order, divide a section of HDCP Key data files corresponding to the required length, and then pass The actual number of HDCP keys required for encryption production on different platforms. However, when intercepting a section of HDCP Key data each time, file interception errors are prone to occur, and the ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/17
Inventor 王辉
Owner SHENZHEN JIUZHOU ELECTRIC
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