LE Security Mode 1 Level 4 是什么? 在CC2640r2f下如何设置?

某安全认证关于BLE的要求如下:

BLE must use LE Security Mode 1 Level 4 only

请问,什么是LE Security Mode 1 Level 4 , 在CC2640r2f下如何设置?

Viki Shi：

– LE Security Mode 11. No security (No authentication and no encryption)2. Unauthenticated pairing with encryption3. Authenticated pairing with encryption

– LE Security Mode 21. Unauthenticated pairing with data signing2. Authenticated pairing with data signing

更具体的要求请参考蓝牙规范，在蓝牙技术联盟可以下载