Dynamic Passcode Distribution for Wireless Access Points
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Solution Overview
Problem
Existing wireless access points using static passcodes are vulnerable to hacking, as administrators often fail to change passcodes due to the inconvenience of distributing new codes to multiple devices, especially with the increasing number of internet-of-things devices connected to local area networks.
Innovation Solution
Implementing dynamic passcodes that periodically change and are automatically distributed to trusted devices, allowing them to access the network without manual intervention, while untrusted devices require manual provisioning of new passcodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dynamic passcodes are implemented that periodically change, then network security is improved by reducing the time available for hackers to crack passcodes, but device complexity increases and administrative burden increases due to manual distribution requirements
Solution Approach 1:
The access point automatically distributes new passcodes to trusted devices without requiring administrator intervention. The system self-manages the passcode rotation process by identifying trusted devices and automatically providing them with updated authentication credentials, eliminating the manual distribution burden while maintaining security
Solution Approach 2:
The access point maintains a pre-established list of trusted devices and proactively pushes new passcodes to these devices before or during the passcode rotation event. This preliminary preparation of device lists and automated notification mechanisms enables seamless passcode updates without administrative overhead
2Reliability
If the passcode is changed frequently to improve security, then the time window for potential hacking is reduced, but the ease of operation deteriorates because administrators must manually update each device
Solution Approach 1:
The system automatically identifies trusted devices and distributes new passcodes without requiring administrator action. The access point handles the entire passcode distribution process autonomously, making frequent passcode changes operationally convenient while maintaining strong security
Solution Approach 2:
The access point receives feedback from devices attempting to connect and automatically responds by providing new passcodes to trusted devices. This closed-loop feedback mechanism enables the system to adapt to security requirements while maintaining ease of operation through automation
3Reliability
If manual passcode distribution is used for each device, then security control is maintained over which devices can access the network, but productivity decreases due to the time-consuming nature of updating multiple devices
Solution Approach 1:
The access point automatically manages passcode distribution to multiple devices simultaneously based on pre-configured trust relationships. This eliminates the sequential manual update process and enables parallel provisioning of multiple devices, dramatically improving network setup efficiency while maintaining security control
Solution Approach 2:
The system combines multiple passcode distribution operations into a single automated process. Instead of updating each device individually, the access point pushes new passcodes to multiple trusted devices simultaneously, merging administrative tasks and improving productivity
Data Source
AI summary
A method includes receiving, at an access point, an access request from a first device after an expiration of a first passcode. The access request is encrypted based on the first passcode. The method includes making a determination by the access point before an expiration of a usage time of a first passcode usage list that an identifier of the first device is included in the first passcode usage list. The method also includes, in response to making the determination, generating, at the access point, data representing a second passcode by encrypting the second passcode using the first passcode; and sending the data representing the second passcode from the access point to the first device.