An Enhanced Passkey Entry Protocol for Secure Simple Pairing in Bluetooth
Sai Swaroop Madugula, Ruizhong Wei
TL;DR
This paper introduces an improved passkey entry protocol for Bluetooth's Secure Simple Pairing, enhancing security and efficiency against eavesdropping and MITM attacks across Bluetooth standards.
Contribution
The paper presents a novel enhancement to the Bluetooth passkey entry protocol utilizing cryptographic hash functions and random integers for improved security.
Findings
More secure against passive eavesdropping
Resistant to active MITM attacks
Applicable to all passkey-based Bluetooth devices
Abstract
In this paper, we propose a simple enhancement for the passkey entry protocol in the authentication stage 1 of Secure Simple Pairing using preexisting cryptographic hash functions and random integer generation present in the protocol. The new protocol is more secure and efficient than previous known protocols. Our research mainly focuses on strengthening the passkey entry protocol and protecting the devices against passive eavesdropping and active Man-in-the-middle (MITM) attacks in both Bluetooth Basic Rate/Enhanced Data Rate (BR/EDR) and Bluetooth Low Energy (Bluetooth LE). This method can be used for any device which uses the passkey entry protocol.
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Taxonomy
TopicsBluetooth and Wireless Communication Technologies · User Authentication and Security Systems · Opportunistic and Delay-Tolerant Networks