In IMSI, why is a temporary ID used? Explain clearly.
What will be an ideal response?
The SIM stores an IMSI (International Mobile Subscriber Identity), a TMSI
(Temporary Mobile Subscriber Identity) and a shared key K. The TMSI is a
temporary identification number that is assigned during location update to
protect the true identity of the caller. A shared key is permanent and is used to
produce challenge-responses and session encryption keys. Hence, once the
session is over, it is imperative to disassociate the user with the ID, otherwise it
can be stolen and used to authenticate a hacker
with intension of doing malicious work.
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A) Real B) DINT C) Boolean D) INT
Unidirectional dimensioning has all numerals, figures, and notes shown vertically and be read from the bottom of the sheet.
Answer the following statement true (T) or false (F)