How to set up and verify integrity verification codes

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AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By generating and storing stream and frame integrity verification codes in the header data blocks of media files, the latency problem of media file integrity verification in video-on-demand services is solved, and fast, low-cost integrity verification is achieved.

CN115640612BActive Publication Date: 2026-05-26SUZHOU KEDA SPECIAL VIDEO CO LTD +1

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: SUZHOU KEDA SPECIAL VIDEO CO LTD
Filing Date: 2022-09-27
Publication Date: 2026-05-26

Application Information

Patent Timeline

27 Sep 2022

Application

26 May 2026

Publication

CN115640612B

IPC: G06F21/64

AI Tagging

Application Domain

Digital data protection

Technology Topics

Programming language Data integrity

Technical Efficacy Phrases

Does not affect the playback experience

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AI Technical Summary

Technical Problem

Existing technologies cannot quickly verify the integrity of media files in video-on-demand services, resulting in long download times and high memory consumption.

Method used

By converting the media file into a second media file containing an integrity verification policy, generating and storing the stream integrity verification code and the comprehensive integrity verification code in the header data block, integrity verification is allowed during partial downloads.

Benefits of technology

It enables integrity verification without downloading the entire media file, reducing waiting time and memory consumption, and ensuring that the playback experience is not affected.

✦ Generated by Eureka AI based on patent content.

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Figure CN115640612B_ABST

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Abstract

This application provides a method for setting and verifying an integrity verification code. The method includes: converting a first media file into a second media file based on an integrity verification strategy, such that the second media file contains the data of the first media file, the public portion of the integrity verification strategy, and verification code gaps; calculating an integrity verification code based on the second media file according to the integrity verification strategy, the integrity verification code including a stream integrity verification code and a comprehensive integrity verification code; and filling the corresponding integrity verification code into the verification code gaps, wherein the stream integrity verification code and the comprehensive integrity verification code are located in the second header data block of the second media file. This application does not require waiting for the entire second media file to be received; integrity verification of the comprehensive integrity verification code of the second media file can be performed upon receiving the second header data block of the second media file, without affecting the normal playback experience.

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