iphone mac地址是否随机

4

2019-04-12 15:09:17 +08:00 via iPhone

iOS 8 以上的 MAC 地址随机应该只是在扫可用网和休眠状态下使用的。实际鉴权的时候用的是真实地址。

From iOS Security Guide:

iOS uses a randomized Media Access Control (MAC) address when conducting Wi-Fi scans while it isn ’ t associated with a Wi-Fi network. These scans could be performed in order to find and connect a preferred Wi-Fi network or to assist Location Services for apps that use geofences, such as location-based reminders or fixing a location in Apple Maps. Note that Wi-Fi scans that happen while trying to connect to a preferred Wi-Fi Network aren ’ t randomized.

iOS also uses a randomized MAC address when conducting enhanced Preferred Network Offload (ePNO) scans when a device isn ’ t associated with a Wi-Fi network or its processor is asleep. ePNO scans are run when a device uses Location Services for apps that use geofences, such as location-based reminders that determine whether the device is near a specific location.