Multi-modal data encryption transmission method and system

Through the timing synchronous slice and cross-modal keyframe association technology, the problem of coordination and synchronization in multimodal data encryption is solved, and the coordinated protection and reliable transmission of cross-modal data is realized, which improves the synchronization reconstruction ability and security of decrypted data, and provides traceable feature identification for large models.

CN120474835AActive Publication Date: 2025-08-12HANGZHOU HEZHONG DATA TECH CO LTD
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Patent Information

Application Number
CN202510954115.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-11
Publication Date
2025-08-12
Estimated Expiration
2045-07-11

AI Technical Summary

Technical Problem

The existing technology lacks a cross-modal collaborative protection mechanism in multimodal data encryption transmission, resulting in the time-series binding relationship between video keyframes, audio audible pattern features and text semantic nodes being damaged, the transmission path is unstable, it is difficult to ensure data synchronization and security, and it is unable to meet the needs of large models for multimodal data traceability.

Method used

Through the timing synchronization slice and cross-modal keyframe association technology, the keyframes of video, audio, and text data are extracted and bound to the same time stamp, and the encryption key is generated based on cross-modal feature fusion. The encrypted slice is transmitted using the main transmission channel and the virtual slice is transmitted through the auxiliary signaling channel, and the transmission path is coordinated to achieve synergy and synchronization of cross-modal data.

Benefits of technology

Improve the synchronous reconstruction capabilities of decrypted data, ensure the timing correlation between modals, enhance the security of the encryption process, reduce the risks of transmission conflicts and packet loss, provide traceable cross-modal feature identification, and meet the traceability needs of large models.

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Abstract

The invention discloses a multi-modal data encryption transmission method and system, and the method comprises the steps: carrying out the time sequence synchronization slicing of multi-modal data according to the data type, extracting the key frame of each slice after the time sequence synchronization slicing, and associating the key frames to the same timestamp, and the data type of the multi-modal data comprises video data, audio data and text data; based on the timestamp, the signaling header and the intra-frame data of the key frame, generating an encryption key through cross-modal feature fusion, and encrypting the header of the corresponding key frame to obtain an encryption slice; and transmitting the encrypted slice through the main transmission channel, generating an unencrypted virtual slice when the length of the slice is not matched with the minimum value of the length of the slice of the corresponding data type, and transmitting the virtual slice through the auxiliary signaling channel to coordinate a transmission path. Key frames of a video, an audio and a text are bound to the same timestamp through time sequence slices, and a dynamic key is generated based on cross-modal feature fusion, so that the problem of collaboration deficiency in multi-modal data encryption is solved.
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