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Lena ran a Bluetooth sniffer. “First, our earbud sends an inquiry — ‘Anyone out there?’ The phone replies. That’s layer one working.”
A survey on Bluetooth Low Energy security and privacy - ScienceDirect bluetooth stack
A Bluetooth stack is a set of software layers that enables devices to communicate wirelessly by managing tasks like device discovery, connection establishment, and data exchange. It serves as the bridge between the high-level application and the raw radio hardware. Core Architecture Lena ran a Bluetooth sniffer
This layer defines how pairing and encryption happen. It is responsible for generating the encryption keys and managing the security levels (e.g., "Just Works" pairing vs. Passkey entry) to ensure the connection is private. It serves as the bridge between the high-level
: Allows devices to query what services (like "Headset" or "File Transfer") another device supports. Common Implementations