蓝牙4.2的安全增强有哪些？

问题：蓝牙4.2的安全增强有哪些？

答案：
根据相关资料，为您解答：

**来源：** Bluetooth Low Energy Certified SoCs and Modules - Silicon Labs
Bluetooth Low Energy Certified SoCs and Modules - Silicon Labs // Wireless Connectivity // Bluetooth Bluetooth® and Bluetooth LE Solutions for a Wide Range of Applications Robust, Low-Power Bluetooth Solutions from the Global Leader in IoT Next-Gen Wireless SoC for Advanced LED Lighting and Home Automation The SiBG301 is optimized for LED Lighting and mains powered mesh networks, while providing high-performance compute and our most secure wireless platform. More Information Next-Gen Wireless SoC for Advanced LED Lighting and Home Automation The SiBG301 SoC family belongs to our next generation Series 3 platform that further extends our leadership in ultra-low power IoT SoCs and modules. Series 3 brings new levels of compute, security, RF performance, and power efficiency that are necessar
*（详见：https://www.silabs.com/wireless/bluetooth）*

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**来源：** Bluetooth® API - ESP32 - — ESP-IDF Programming Guide latest documentation
Bluetooth® API - ESP32 - — ESP-IDF Programming Guide latest documentation API Reference Bluetooth ® API Edit on GitHub Bluetooth ® API  [中文] This section provides the API reference for Bluetooth components supported in ESP-IDF. ESP-IDF supports two host stacks: Bluedroid and NimBLE . Bluedroid (the default stack): Supports both Bluetooth Classic and Bluetooth LE. Recommended for applications that require both technologies. NimBLE : A lightweight stack for Bluetooth LE only. Ideal for resource-constrained applications due to smaller code size and memory usage. Use the navigation links below to explore API documentation and application examples. Controller Interface API The low-level interface between the Bluetooth host stack and the controller. Controller & HCI Bluedroid Stack API
*（详见：https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/bluetooth/index.html）*

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