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

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...

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

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