Get MAC address of bluetooth low energy peripheral in iOS

Question

I am currently working on an iOS application based on bluetooth low energy devices. In order to get a unique identifier to compare the peripherals got, I have to get the MAC

Answer 1

Updated Answer :-

After iOS 12 we can get UDID

   print(UIDevice.current.identifierForVendor)

   print(UIDevice.current.identifierForVendor?.uuidString)

Before iOS 12**

There is no public API to get this information.

If this is an internal or jailbreak application you can get the value of the kLockdownBluetoothAddressKey key via liblockdown.dylib