Ciphering is the process of altering voice or data information with the intention of preventing its consumption or usage by unauthorized recipients . … Without the encryption algorithm and key(s), unauthorized listeners cannot decode the data or messages.
Read moreWhat is ciphering in GSM?
GSM makes use of a ciphering key to protect both user data and signaling on the vulnerable air interface . Once the user is authenticated, the RAND (delivered from the network) together with the KI (from the SIM) is sent through the A8 ciphering key generating algorithm, to produce a ciphering key (KC).
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