BLE - MITM protection

[Roei]

Hi,

I understand that we have several types of sec_modes.

However, regarding modes with MITM - I don't understand how exactly those modes protect from MITM. What does it do?

Thanks!

[Roei]

Do you mean diffie hellman key exchange?

[Kenneth]

Please read litterature you may find on Bluetooth core specification. Your questions are all good, but I can't explain the details  to your, you need to read up on the Bluetooth core specification.

Kenneth