NFC Security Label Card Encryption for Communication Terminals
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Solution Overview
Problem
Traditional communication methods lack effective security measures to prevent unauthorized access and theft of personal and secret information during communication, posing a risk to privacy and security.
Innovation Solution
An encrypted communication method using Near Field Communication (NFC) security label cards to read and apply encryption algorithms, where data packets are encrypted and indexed, allowing only authorized terminals to decrypt them, enhancing security through NFC-based encryption and decryption processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional communication methods are used, then communication convenience is maintained, but communication security deteriorates due to lack of encryption measures
Solution Approach 1:
The patent introduces NFC security label cards as intermediary devices that store encryption algorithms and indexes. These cards act as mediators between communication parties, providing encryption/decryption capabilities without requiring complex integrated security systems in each communication device. The security label card is a separate, dedicated security component that can be used across different communication devices.
Solution Approach 2:
The patent divides the communication system into separate functional components: communication devices for data transmission and NFC security label cards for security operations. This segmentation allows each component to focus on its specific function, reducing overall system complexity while maintaining security. The encryption algorithm storage and execution are separated from the main communication device.
2Reliability
If encryption algorithms are stored in each communication device, then communication security is improved, but device storage requirements and complexity increase
Solution Approach 1:
The NFC security label card serves multiple communication devices universally. Instead of each device needing its own encryption algorithm storage, a single security label card can be shared across multiple devices, providing the same encryption capabilities to all of them. This multi-functional approach reduces total storage requirements across the system.
Solution Approach 2:
The patent uses indexes as simplified copies or references to the actual encryption algorithms. Rather than storing complete encryption algorithms in each communication device, only compact indexes are stored and transmitted. The full algorithms remain stored in the security label card, reducing storage requirements in communication devices while maintaining security functionality.
3Reliability
If complete data packets are encrypted, then communication security is improved, but processing time and energy consumption increase
Solution Approach 1:
The patent applies encryption selectively to specific parts of data packets rather than encrypting everything uniformly. Different portions of data may receive different levels of encryption based on their sensitivity. This local differentiation optimizes the balance between security and processing efficiency by focusing encryption resources on critical data portions.
Solution Approach 2:
The patent implements partial encryption where only essential or sensitive portions of data packets are encrypted, rather than applying full encryption to entire packets. This partial action approach reduces processing time and energy consumption while still providing adequate security for the most critical information elements.
4Reliability
If encryption indexes are transmitted with data packets, then decryption capability is improved, but data packet size and transmission overhead increase
Solution Approach 1:
The patent transmits compact indexes as simplified representations or references to the full encryption algorithms, rather than transmitting the complete algorithms themselves. These indexes are much smaller in size but still contain sufficient information for the receiving device to retrieve and use the appropriate decryption algorithm from the security label card, maintaining decryption capability while reducing overhead.
Data Source
AI summary
Disclosed are an encrypted communications method and communications terminal. The method comprises: reading from a first NFC security label the encryption algorithm and the index of the encryption algorithm; using the encryption algorithm to encrypt a data packet to be transmitted so as to generate an encrypted data packet; transmitting the encrypted data packet; transmitting the index; the index is configured so that the target communication terminal can obtain the encryption algorithm and decrypt the encrypted data packet. Also disclosed is a computer storage medium.