Mobile Short Message Encryption via Unused Packet Parameters
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Solution Overview
Problem
Current encryption methods for mobile communication short messages do not adequately protect the privacy of messages, especially when devices are lent to others, and existing solutions increase computational complexity and require hardware circuits.
Innovation Solution
A method that encrypts short messages by configuring unused parameters in the message packet as encryption parameters, allowing only the intended recipient to read the message by inputting a corresponding password, without the need for additional hardware circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hardware circuit is used for encrypting short messages, then the security of short messages is improved, but the device complexity and computational complexity increase
Solution Approach 1:
The patent changes the parameter of encryption implementation from hardware-based to software-based. By configuring unused parameters in the message packet structure as encryption parameters, the system achieves message encryption without requiring additional hardware circuits or complex computational operations, thus resolving the contradiction between security improvement and device complexity increase
Solution Approach 2:
The patent makes existing message packet parameters serve multiple functions: their original function for message transmission and an additional function as encryption parameters. This multi-functionality approach allows encryption to be implemented without adding new hardware components, thereby improving security while avoiding increased device complexity
2Reliability
If encryption is implemented for short messages, then the privacy protection is improved, but the operational performance of the device decreases
Solution Approach 1:
The patent changes the state of message parameters from plaintext to encrypted form by utilizing unused parameter fields. This parameter transformation enables privacy protection without requiring additional processing steps that would degrade operational performance
Solution Approach 2:
The message packet structure itself provides encryption functionality through its unused parameters. The system leverages existing structural elements to perform encryption, eliminating the need for separate encryption modules that would burden the computational circuitry and reduce operational performance
3Reliability
If unused parameters are configured as encryption parameters, then the security against unauthorized reading is improved, but the message packet structure complexity increases
Solution Approach 1:
The patent assigns multiple functions to existing message packet parameters: their original function for message content transmission and an additional function as encryption parameters. This approach improves security against unauthorized reading while avoiding increases in message packet structure complexity, as no new structural elements are introduced
Data Source
AI summary
The present invention relates to a method for encrypting a short message in mobile communication. According to the present invention, a user first inputs short-message content and a short-message password to a first communication electronic device. Then the first communication electronic device writes the short-message content to a short-message packet according to a short-message protocol, configures a set of unused parameters of the short-message packet as a set of encryption parameters according to the short-message protocol, and configures the short-message password to the set of encryption parameters for transmitting the short-message packet containing the set of encryption parameters to a second communication electronic device. Thereby, according to the present invention, the short message is encrypted. After the user of the second communication electronic device receives the short message, he cannot read the received short message unless he inputs the correct password to the second communication electronic device.