Interface protection method and device, electronic equipment and storage medium

Abstract

The invention discloses an interface protection method and device, electronic equipment and a storage medium, and the method and device are used for an initiator and a receiver, and the initiator comprises the steps: obtaining a preset triggering event, and initiating an authentication process according to the preset triggering event; acquiring encrypted data supported by an initiator, and generating a first parameter set according to the encrypted data; sending the first parameter set to a receiver, and recording a first timing parameter; obtaining a second parameter set sent by the receiver,and recording a second timing parameter; generating key data according to the second parameter set, and verifying the second parameter set according to the key data, the first timing parameter and the second timing parameter to obtain an initial verification result; and sending the verification initiating result to the receiver. By means of the interface protection method, the authentication process of interface protection can be simplified, authentication time consumption is reduced, authentication efficiency is improved, and higher fault tolerance is achieved.

Description

technical field [0001] The invention relates to the field of electronic devices, in particular to an interface protection method, device, electronic equipment and storage medium. 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. Currently, the main digital interface protection standard is the international HDCP. The HDCP authentication protocol includes the AKE phase (Authentication and key exchange), the LC phase (Locality check), the SKE phase (Session key exchange) and the authentication phase with the repeater. Through four Ph...

AI Technical Summary

Problems solved by technology

When communicating with the interface repeater, additional multiple 2-pass information collection and 2-pass command control authentication are required. Therefore, the current authentication method is redundant and inefficient

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