Chaos Communication Congress

SigOver + alpha (36x53)

Data di messa in onda: Dic 28, 2019

(Signal overshadowing attack on LTE and its applications) As Long-Term Evolution (LTE) communication is based on over-the-air signaling, a legitimate signal can potentially be counterfeited by a malicious signal. Although most LTE signaling messages are protected from modification using cryptographic primitives, broadcast messages and some of the unicast messages are unprotected. In this talk, we would like to introduce a signal injection attack that exploits the fundamental weakness of unprotected messages in LTE and modifies a transmitted signal over the air.