DM Server Remote Encryption for Mobile Terminals
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Solution Overview
Problem
Current encryption methods for mobile terminals are complex, requiring users to manually encrypt and decrypt data, which can lead to data loss if not properly managed, especially when the user forgets encryption operations, and do not allow for remote encryption of non-local terminals.
Innovation Solution
An encryption/decryption method and system where a Device Management (DM) server manages encryption and decryption operations, simplifying the process by reporting encrypted data state information and performing decryption based on this information, allowing users to encrypt and decrypt data remotely without manual file management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual encryption operation is implemented by connecting personal computer through data wire, then data can be encrypted, but the encryption process becomes too complicated
Solution Approach 1:
The patent introduces a DM server as an intermediary between the user and the encryption system. The server receives encryption requests, manages encryption keys, and coordinates the encryption process remotely, eliminating the need for direct PC connection and complex manual operations while ensuring data protection
Solution Approach 2:
The encryption system is designed to automatically perform encryption operations without requiring user intervention in the actual encryption process. The terminal device and DM server work together to automatically encrypt data based on pre-established key relationships, making the process simple for users while maintaining security
2Reliability
If decryption operation is performed on too many encrypted files with hiding and renaming, then data security is maintained, but decryption becomes complicated and data can be hardly recovered
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device reports encrypted data state information to the DM server, and the server responds with appropriate decryption instructions. This automated feedback loop eliminates the need for manual file management during decryption, simplifying the process while maintaining security through server-controlled key distribution
Solution Approach 2:
The DM server acts as an intermediary that manages the decryption process centrally. Instead of requiring users to manually manage multiple encrypted files and their hidden/renamed states, the server coordinates decryption operations based on reported data states, making recovery simple even for large numbers of files
3Reliability
If user wants to encrypt data of non-local terminal, then comprehensive data protection is achieved, but the user cannot encrypt non-local terminal without remote capability
Solution Approach 1:
The DM server provides universal encryption management capability that works across multiple terminal devices regardless of their physical location. The server can receive encryption requests for any registered terminal and coordinate the encryption process remotely, making the system adaptable to both local and non-local encryption needs through its multi-functional architecture
Data Source
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AI summary
An encryption/decryption method are described, which includes that a terminal performs an encryption operation according to information of an encryption sub-node of an Encrypt And Decrypt Management Object (EADMO) node of a local Device Management (DM) tree and reports to a DM server encrypted data state information generated after the encryption succeeds; and the terminal performs a decryption operation according to the encrypted data state information sent from the DM server. An encryption/decryption system and device are also described. By means of technical solutions of embodiments of the disclosure, operations are simple without causing data loss, and a problem that data of a non-local terminal cannot be encrypted is solved.