Secure input method, apparatus and terminal device

By calling the security service process at the application layer to draw and encrypt secure keyboard data, the problem of cumbersome kernel layer modifications in terminal devices is solved, data security and portability are improved, and plaintext data leakage at the application layer is avoided.

CN115688144BActive Publication Date: 2026-06-23PAX COMP TECH SHENZHEN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PAX COMP TECH SHENZHEN
Filing Date
2022-11-15
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

When implementing dual video memory and dual subsystem input sources in terminal devices, existing technologies require large-scale modifications to the kernel's standard video memory subsystem and input subsystem, resulting in cumbersome development work and poor portability, especially with heavy adaptation work during kernel version upgrades.

Method used

By calling the security service process at the application layer, the desktop management process is triggered to draw a secure keyboard. The security service process then obtains and encrypts the secure data, avoiding application involvement in the keyboard drawing and data acquisition process. A message bus system is used to implement inter-process communication, ensuring data security and improving portability.

Benefits of technology

Implement security services at the application layer to ensure data security, reduce development workload, improve the portability of security services, and prevent the plaintext leakage of sensitive data.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application is suitable for the technical field of computer application, and provides a security input method, device and terminal equipment, which comprises the following steps: obtaining a security input request initiated by an application in a terminal equipment; calling a security service process according to the security input request, so as to call a desktop management process through the security service process; awakening a security keyboard through the desktop management process, and displaying the security keyboard in a display interface of the terminal equipment; obtaining security data input through the security keyboard, and sending the security data to the security service process; and encrypting the security data through the security service process, and sending the security data to the application. Thus, the security service process triggers the desktop management process to draw the security keyboard alone, and the security service process obtains the security data input through the security keyboard and encrypts the security data, so that the application cannot access the plaintext of the security data, thereby realizing the security service in the application layer, improving the portability of the security service, and reducing the development workload of the security service.
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