Podcast
Questions and Answers
What is used to authenticate a Mobile Subscriber in GSM?
What is used to authenticate a Mobile Subscriber in GSM?
- Subscriber Authentication Code
- Subscriber Identification Number
- Subscriber Identity Module (correct)
- Mobile Equipment Number
Why does GSM use a digital air interface?
Why does GSM use a digital air interface?
- To reduce the privacy of subscribers
- To decrease the security of network providers
- To minimize interference problems (correct)
- To enable easier call tracing
What is the purpose of a Temporary Mobile Subscriber Identity (TMSI) in GSM?
What is the purpose of a Temporary Mobile Subscriber Identity (TMSI) in GSM?
- To simplify call tracing
- To enhance subscriber authentication
- To notify the VLR about new subscribers
- To provide high security for the subscriber (correct)
Which entity controls the allocation of new Temporary Mobile Subscriber Identity (TMSI) numbers in GSM?
Which entity controls the allocation of new Temporary Mobile Subscriber Identity (TMSI) numbers in GSM?
How does GSM provide enhanced privacy to subscribers and security to network providers?
How does GSM provide enhanced privacy to subscribers and security to network providers?
What is used to uniquely identify the Mobile Equipment (ME) in GSM?
What is used to uniquely identify the Mobile Equipment (ME) in GSM?
What temporary identifier is used in 3G systems?
What temporary identifier is used in 3G systems?
Which generation of mobile networks does the text mention as having IMSI catching attacks?
Which generation of mobile networks does the text mention as having IMSI catching attacks?
What is an active man-in-the-middle adversary able to do in the context of IMSI catching attacks?
What is an active man-in-the-middle adversary able to do in the context of IMSI catching attacks?
Why is backward compatibility sometimes considered a challenge in addressing IMSI catching attacks?
Why is backward compatibility sometimes considered a challenge in addressing IMSI catching attacks?
Which security specification in 5G networks prohibits plain-text transmissions of the SUPI over the radio interface?
Which security specification in 5G networks prohibits plain-text transmissions of the SUPI over the radio interface?
When might authentication through the use of temporary identifiers not be possible?
When might authentication through the use of temporary identifiers not be possible?
Why was IMSI catching still possible in 3G?
Why was IMSI catching still possible in 3G?
What was the reason behind the introduction of forward security in handovers in EPS?
What was the reason behind the introduction of forward security in handovers in EPS?
In 5G networks, which security type mainly covers Authentication, Integrity, and Ciphering of Signaling and Data?
In 5G networks, which security type mainly covers Authentication, Integrity, and Ciphering of Signaling and Data?
Why did 3G networks allow session keys CK, IK delivered to one network to be used in any other 3G network?
Why did 3G networks allow session keys CK, IK delivered to one network to be used in any other 3G network?
What was the main reason for introducing cryptographic network separation of authentication material in EPS?
What was the main reason for introducing cryptographic network separation of authentication material in EPS?
Why were RNCs considered less vulnerable locations than eNBs in 3G networks?
Why were RNCs considered less vulnerable locations than eNBs in 3G networks?
