Mobile Device User Module Encryption and Configuration Control
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Solution Overview
Problem
Mobile devices face challenges in preventing unauthorized access to user data and application programs, requiring enhanced security and user convenience while being cost-effective.
Innovation Solution
Storing user data in encrypted form within the device memory and using a user module with a decrypting function to ensure secure access, along with configuration data management for application program execution, which includes password and biometric authentication for authorization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user data is stored in encrypted form and decryption is performed using a user module, then security against unauthorized access is improved, but device complexity increases
Solution Approach 1:
The patent introduces a user module as an intermediary component that handles decryption operations. This separate module acts as a mediator between the encrypted data storage and the processing units, providing security functionality without permanently integrating complex cryptographic operations into the main device architecture.
Solution Approach 2:
The system is divided into distinct functional components: the mobile device containing encrypted data, and a separate user module containing decryption capabilities. This segmentation allows the security-critical decryption function to be isolated in a dedicated component, improving both security and manageability.
2Adaptability or versatility
If configuration data is stored in the user module to control application execution, then adaptability to user requirements is improved, but access time increases
Solution Approach 1:
Configuration data is pre-stored in the user module during module initialization or previous usage sessions. This preliminary action allows the system to quickly retrieve authorization information without performing complex authentication operations at the moment of access, reducing latency while maintaining adaptability.
Data Source
AI summary
The invention relates to methods for storing and accessing user data (48) and configuration data (62) in a mobile device (10) that is connected to a user module (12). According to a first aspect of the invention, the user data (48) is stored in the mobile device (10) at least partially in encrypted form, and is decrypted, in access operations, using a decrypting function (66) of the user module (12). According to a second aspect of the invention, the configuration data (62) is stored in the user module (12). The configuration data (62) indicates whether, or to what extent, an application program (46) is allowed to be executed by the mobile device (10). Security and protection against unauthorised access to user data (48) and application programs (46) in the mobile device (10) are increased by the invention.