用于对音频和视频数据进行数字化签名的方法及系统
By digitally signing and cross-inserting the signatures of video and audio data, the problems of tampering and timestamp forgery in video and audio data in surveillance cameras are solved, and the authenticity and relevance of the data are verified.
CN120074850BActive Publication Date: 2026-07-17AXIS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AXIS
- Filing Date
- 2024-11-07
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies make it difficult to effectively verify and ensure that video and audio data have not been tampered with after being captured by surveillance cameras, and it is also difficult to prove that they were captured simultaneously in the same scene.
Method used
By digitally signing video and audio sequences, video signatures and audio signatures are generated and then interleaved into each other's sequences to ensure the correlation and integrity of the video and audio data.
Benefits of technology
It enables simultaneous capture and verification of video and audio data, ensuring that the data is not tampered with during transmission and proving that they were captured simultaneously from the same scene and using the same device.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN120074850B_ABST
Abstract
公开了用于对音频和视频数据进行数字化签名的方法及系统。通过将摘要算法应用于视频序列的第一视频部分来生成第一视频摘要，并且通过将摘要算法应用于音频序列的第一音频部分来生成第一音频摘要。通过对第一视频摘要进行数字化签名来生成第一视频签名，并且通过对第一音频摘要进行数字化签名来生成第一音频签名。将第一视频签名插入第一目标音频部分中，并且将第一音频签名插入第一目标视频部分中。从包括第一音频签名的第一目标视频部分中生成第二视频摘要，并且从包括第一视频签名的第一目标音频部分中生成第二音频摘要。通过对第二视频摘要进行数字化签名来生成第二视频签名，并且通过对第二音频摘要进行数字化签名来生成第二音频签名。
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