Hello All,
What is the need of integrity and ciphering encryption for an RRC message?
Hello All,
What is the need of integrity and ciphering encryption for an RRC message?
Ciphering provides secrecy. Integrity provides tamper-evidence
Ciphering, also known as encryption, ensures that intruders cannot read the data and signalling messages that the mobile and network exchange. Ciphering can be applied to both U-Plane Data and C-Plane Data (RRC/NAS Message)
Integrity protection ensures that the intruder cannot replay or modify signalling messages that the mobile and network exchange. It protects the system against problems such as man-in-middle attacks, in which an intruder intercepts a sequence of signalling messages and modifies and re transmits them, in an attempt to take control of the mobile. This algorithm applies only to C-Plane data (NAS message).