Wireless Pairing Using PAKE for Fast Trusted Connections
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Solution Overview
Problem
Current wireless device pairing methods, such as Bluetooth pairing, require user input and multiple information exchanges, leading to a lengthy and complex process that detracts from user experience.
Innovation Solution
A pairing method using a password-based authenticated key exchange (PAKE) protocol allows trusted wireless devices to share a password for secure and rapid pairing without user input, reducing the number of information exchanges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Bluetooth simple pairing protocol is used, then security is improved through random number verification, but pairing time increases due to multiple information exchanges
Solution Approach 1:
The patent applies preliminary action by pre-storing authentication information (passwords or private keys) in both devices before pairing occurs. This allows the devices to skip the lengthy random number verification process and directly establish a secure connection using the pre-shared credentials, thus reducing pairing time while maintaining security through the PAKE protocol
2Reliability
If user input is required for pairing verification, then security is improved through user confirmation, but ease of operation deteriorates due to complex user interaction
Solution Approach 1:
The patent implements self-service by enabling devices to automatically complete the pairing process using pre-stored authentication information. The devices independently verify each other's credentials through the PAKE protocol without requiring user intervention, thus eliminating complex user interactions while maintaining security through cryptographic verification
Data Source
AI summary
A pairing method applied to a short-range communication system and a related wireless device in the field of wireless communication are disclosed. The method includes: obtaining, by a first wireless device, a first password, where the first password is shared by the first wireless device and a second wireless device; and pairing, by the first wireless device, with the second wireless device based on a password-based authenticated key exchange (PAKE) protocol and by using the first password as an encryption password in a key exchange process.