Mobile Terminal Data Backup Block Segmentation Recovery
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Solution Overview
Problem
Current mobile terminals face challenges in ensuring information security during data backup and recovery, as password-based secrecy processing can lead to difficulties in recovering data if the password is forgotten or not set, resulting in potential permanent data loss.
Innovation Solution
A data backup and recovery method for mobile terminals that divides data into blocks, generates backup data and statistics information, and allows users to recover data by answering questions based on familiarity, ensuring security even if passwords are forgotten or fingerprint verification fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a password is set for backup file, then information security is ensured, but data recovery becomes difficult if password is forgotten
Solution Approach 1:
The backup file is divided into multiple data blocks, each with its own password protection. Users can recover individual blocks without needing the master password, enabling partial recovery while maintaining security for unrecovered portions.
Solution Approach 2:
Different security mechanisms are applied to different parts of the backup system: strong password protection for the master backup file, and simplified question-based authentication for individual data blocks, optimizing both security and recoverability at appropriate levels.
2Ease of operation
If no password is set for backup file, then data recovery is easy, but information security cannot be ensured
Solution Approach 1:
The backup system segments data into protected and unprotected portions. The master backup file maintains password protection for security, while individual data blocks can be recovered through security questions, providing easy recovery paths for non-critical data.
Solution Approach 2:
Security questions serve as an intermediary authentication mechanism between the user and backup data. When passwords are forgotten, these questions provide an alternative verification path without compromising the overall security architecture.
3Device complexity
If data is backed up as a whole, then security is simplified, but recovery flexibility is reduced when password is forgotten
Solution Approach 1:
The backup system divides data into multiple independent blocks that can be recovered separately. Each block can be accessed through its own authentication mechanism, allowing flexible recovery strategies tailored to different data importance levels.
Solution Approach 2:
The system dynamically adapts recovery approaches based on data criticality. Critical data blocks maintain strong password protection, while less critical blocks allow question-based recovery, providing versatile recovery options without uniform complexity.
4Ease of operation
If fingerprint verification is used, then authentication is convenient, but data recovery fails when fingerprint verification fails
Solution Approach 1:
The system prepares alternative authentication methods (security questions) in advance for each data block. When fingerprint verification fails or is unavailable, these pre-prepared question-based mechanisms provide immediate fallback options without data loss.
Solution Approach 2:
The authentication parameters are changed from biometric-only to a combination of biometric and knowledge-based verification. This allows the system to adapt authentication methods based on available inputs, maintaining both convenience and reliability.
Data Source
AI summary
A data backup method for a mobile terminal and a mobile terminal including the same. The method includes: receiving a data backup request; backing up information data by blocks and generating backup data of each block; scanning the backup data of each block and generating corresponding statistics information; and storing the backup data and the statistics information of each block.