What kind of security mechanisms exist in BGAN?
There are several layers of security in BGAN and the key functions are:———-Ciphering: The user data (CS and PS) in BGAN can be ciphered. The purpose of ciphering the user data is to protect against eavesdropping . BGAN uses the same ciphering method as UMTS, called Kasumi. Here is a link if you want to learn more about it: —- http://networking.champlain.edu/download/3G_KASUMI.pdf ———-Integrity protection: adds a 32bit signature for all messages sent to/from the UT to check integrity i.e. to ensure that the message is real and not tampered with.———-Encryption: Position is encrypted upon sending to the network. ———Authentication: Typically, every attach request and service request sent to the network will be met with an authentication challenge. The purpose is to verify that the UT is “genuine”. The Core Network does this by interrogating its AuC (Authentication Centre) ———–Identity checking: The Core Network checks the IMEI towards the EIR to verify that
