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Interface-based data transmission method, electronic equipment and storage medium

A data transmission method and interface technology, which is applied in the field of interface-based data transmission methods, electronic equipment and storage media, can solve problems such as waste of resources, and achieve the effect of reducing waste and high-speed data transmission

Active Publication Date: 2021-01-12
SHENZHEN NAT ENG LAB OF DIGITAL TELEVISION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When there is an HDCP repeater (interface transit party), the HDCP transmitter (authentication initiator HDCP) needs to additionally initiate the authentication of the interface transit party in the SKE phase, which is used to send management commands and receive interface topology information connected under the transit party, but This method requires the interface relay party to participate in the encryption and decryption of the transmission content at the same time. Specifically, the HDCP repeater is required to decrypt the transmission content from the HDCP transmitter and encrypt it to the HDCP receiver (interface data receiver). This method requires HDCP repeater configuration The implementation of the corresponding high-speed encryption and decryption module will cause a waste of resources

Method used

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  • Interface-based data transmission method, electronic equipment and storage medium
  • Interface-based data transmission method, electronic equipment and storage medium
  • Interface-based data transmission method, electronic equipment and storage medium

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Embodiment Construction

[0036] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are only for explaining the present application, and should not be construed as limiting the present application.

[0037] In the description of the present application, several means one or more, and multiple means two or more. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technica...

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Abstract

The invention discloses a data transmission method based on an interface, electronic equipment and a storage medium. The interface comprises a plurality of network node groups, wherein each network node group comprises a source node and an end node, and data is transmitted between the source node and the end node; when the network node group further comprises at least one transmission node, data is transmitted between the source node and the end node through the transmission node, the source node and one of the transmission nodes are adjacent nodes, the end node and one of the transmission nodes are adjacent nodes, or data is transmitted between the source node and the transmission nodes; the method comprises the following steps of authenticating all nodes in a network node group accordingto an access signal, carrying out key processing on the nodes in the network node group according to an authentication processing result, and encrypting and decrypting plaintext data according to a key processing result so as to complete data transmission. According to the method, high-speed data transmission can be realized without configuring a corresponding high-speed encryption and decryptionmodule for the HDCP reader, so the waste of resources is reduced.

Description

technical field [0001] The present application relates to the field of data transmission, in particular to an interface-based data transmission method, electronic equipment and storage media. Background technique [0002] USB, HDMI, etc. on electronic devices are all digital interfaces. Compared with analog interfaces such as VGA, analog interfaces are basically replaced by digital interfaces at present. The digital content transmitted on the digital interface is easy to be intercepted, thereby causing piracy, and the digital content is usually protected by encrypting the digital content. Content protection usually includes two parts of content encryption and authentication protocol. At present, the main digital interface protection standard is the international HDCP (high bandwidth digital content protection, high bandwidth digital content protection technology), HDCP authentication protocol includes AKE phase (Authentication and key exchange), LC phase (Locality check), S...

Claims

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Application Information

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IPC IPC(8): H04N21/6334H04L29/06
CPCH04N21/63345H04L63/0428H04L63/0478
Inventor 余小龙李新国常林宫俊
Owner SHENZHEN NAT ENG LAB OF DIGITAL TELEVISION
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