Fast Key Sharing for Friend Device Access in Wireless Readers
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Solution Overview
Problem
Existing wireless communication systems face challenges in enabling quick and convenient access of friend devices to reader devices, particularly in 6G communication systems, where high data rates and low latency require efficient signal transmission and secure key sharing.
Innovation Solution
A method and apparatus for sharing a terminal's encryption key with a friend terminal, allowing simplified validation by a reader device, utilizing a fast transaction procedure that reduces signaling overhead and enables friend devices to access reader devices without requiring high security levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If friend devices perform standard validation procedures with reader devices, then security is ensured, but access time and signaling overhead increase
Solution Approach 1:
The patent applies different validation methods based on the device type and reader device settings. Friend devices receive simplified validation procedures when the reader device supports fast transactions and the user selects friend access mode, while owner devices undergo standard validation. This local differentiation of validation quality resolves the contradiction by providing security appropriate to the access scenario.
Solution Approach 2:
For friend devices, the system performs only the necessary partial validation steps required for friend access rather than the complete standard validation procedure. When fast transaction support is enabled and friend mode is selected, the system skips unnecessary validation steps, reducing time loss while maintaining adequate security for the intended use case.
2Reliability
If friend devices undergo complete validation procedures, then validation thoroughness is ensured, but signaling overhead increases
Solution Approach 1:
The validation procedure is differentiated based on the access mode and reader device capabilities. Friend devices following friend access mode receive a simplified validation sequence with reduced signaling, while owner devices receive complete validation. This local quality approach maintains validation thoroughness where needed while reducing complexity for friend access scenarios.
Solution Approach 2:
The system performs partial validation actions for friend devices when fast transaction support is enabled. The validation procedure is truncated to include only essential steps for friend access, omitting redundant validation steps that would increase signaling overhead, while still ensuring sufficient validation for the friend access use case.
3Speed
If fast transaction procedure is used for friend devices, then access speed is improved, but security level decreases
Solution Approach 1:
The system changes the validation parameter set based on the access mode and reader device support. When friend access mode is selected and fast transaction support is enabled, the validation parameters are adjusted to use simplified procedures with reduced steps. This parameter change achieves faster access speed while the security level is adjusted to match the reduced validation scope, providing security appropriate to the friend access scenario.
Data Source
AI summary
The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system, such as long term evolution (LTE). A method performed by a first device in a wireless communication system is provided. The method includes receiving, from a reader device, first information on whether the reader device supports a fast transaction and the reader device's access level, and identifying a method in which the reader device validates a second device, based on the first information, wherein the first device is an owner device validated by the reader device, and wherein the second device is a friend device not validated by the reader device.