A voice data transmission method, device, apparatus and storage medium
By generating session keys on the server and encrypting/decrypting them on the quantum SIM card, the problems of complex key negotiation and insufficient storage space are solved, enabling efficient voice data transmission, saving costs and improving security.
CN116155482BActive Publication Date: 2026-07-03CHINA MOBILE GROUP ANHUI +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA MOBILE GROUP ANHUI
- Filing Date
- 2021-11-18
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
Existing voice data transmission solutions are complex to negotiate keys in one-to-many or no-defined call range scenarios, require large SIM card storage space, and require card replacement after the keys are used up.
Method used
Voice data is encrypted using a session key generated by the server. The calling and called parties use digital certificates in the quantum SIM card for encryption and decryption respectively. The key is deleted immediately after the call ends, achieving "one-time key" and reducing the storage requirements of the SIM card.
Benefits of technology
It effectively saves SIM card storage space, reduces costs, and ensures call security and privacy.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116155482B_ABST
Abstract
This application discloses a voice data transmission method, apparatus, and storage medium applied to the calling end. The method includes: sending a call request to a server when sending a call request to the called end; receiving a session key sent by the server; encrypting voice data using the session key to obtain encrypted voice data; and sending the encrypted voice data to the called end for the called end to decrypt the encrypted voice data using the session key sent by the server. During each call, the server receives a quantum random number sent by a quantum random number generator, generates a session key based on the quantum random number, and sends the generated session key to both the calling and called ends. The calling end encrypts the voice data using the session key to obtain encrypted voice data, and the called end decrypts the encrypted voice data using the session key to obtain the voice data. This method enables "one-time key" encryption, effectively saving SIM card storage space and reducing costs.
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