Applet Identification List Management for Multi-Vehicle Key Authentication
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Solution Overview
Problem
Users face difficulties in securely and conveniently managing vehicle keys when using a single portable terminal for multiple vehicles, as existing solutions do not efficiently handle the authentication process for multiple applets, leading to increased authentication time.
Innovation Solution
An electronic device with a communication module and a security module that manages applet identification lists, selectively transmits and receives information related to specific applets, and performs authentication using the received information to reduce the time required for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single portable terminal is used as a key for multiple vehicles, then convenience for users is improved, but authentication time increases due to multiple applications needing to authenticate
Solution Approach 1:
The patent segments the authentication process by dividing multiple applets into groups based on their applicability to the target external electronic device. Instead of authenticating all applets sequentially, the system identifies and authenticates only the relevant applet group, thereby reducing authentication time while maintaining support for multiple vehicles in a single portable terminal.
2Reliability
If all applications used for authentication attempt authentication, then security is maintained, but authentication time increases
Solution Approach 1:
The patent extracts only the necessary applet information (AID list and selected applet details) required for authentication from the portable terminal to the external electronic device. This extraction approach ensures that only relevant authentication data is transmitted and processed, maintaining security while reducing the time required for the authentication process.
3Device complexity
If the vehicle has no information on the number of applications used in authentication, then device complexity is reduced, but authentication efficiency decreases
Solution Approach 1:
The patent implements preliminary action by having the portable terminal proactively provide an AID list to the external electronic device before authentication begins. This allows the vehicle to pre-know which applets are available for authentication, enabling it to efficiently identify and authenticate only the relevant applet without increasing system complexity.
Data Source
AI summary
In an electronic device and an operating method of an electronic device, according to various embodiments, the electronic device comprises: a communication module frequency performing communication with an external electronic device; and a security module which monitors a change in data relating to an applet for managing a key used for the authentication of the external electronic device, which manages information relating to the applet, and which stores the applet and an applet identification (AID) list including at least one AID, wherein the security module can be configured to receive, from the external electronic device, a signal for requesting the application identifier (AID) list to be transmitted, transmit the AID list to the external electronic device through the communication module in response to the reception of the requesting signal, receive, from the external electronic device, a signal for requesting information relating to an applet associated with at least one AID selected, from among AIDs included in the AID list, by the external electronic device, and transmit, to the external electronic device, information relating to an applet corresponding to the selected AID. Additional various embodiments are possible.