Executive Summary
A leading American audio equipment manufacturer recognized for its home audio systems, speakers, noise-cancelling headphones, professional audio devices, and vehicle sound systems partnered with eInfochips to solve a critical Bluetooth pairing vulnerability impacting Android devices. The issue resulted from the Cross-Transport Key Derivation (CTKD) feature, introduced in Bluetooth 5.0.
The challenge? It posed risks when pairing CTKD over BLE to BR/EDR on Android handsets while maintaining full Bluetooth 5.0 functionality for iOS devices.
eInfochips delivered a platform-aware solution: disabling CTKD selectively for Android during BLE to BR/EDR pairing. This was achieved with intelligent device detection and automated validation, enabling a secure and seamless pairing experience across devices.
Download the full case study to see how eInfochips achieved a secure and seamless Bluetooth experience across platforms, enhancing product security without compromising performance.
Project Highlights
- Restricted BLE to BR/EDR CTKD for Android platform.
- Allowed BR/EDR to BLE CTKD for Android platform.
- Allowed BLE to BR/EDR and BR/EDR to BLE, both CTKD for iOS platform.
- Implemented automated testing to validate and ensure consistent behavior across platforms.
