GSM Question:

Name the algorithms used in following?
a. Ciphering
b. Authentication

GSM Technology Interview Question
GSM Technology Interview Question

Answer:

★ Ciphering
The algorithm 129-EEA3 and 128-EIA3, 3GPP Confidentiality and Integrity Algorithm is used for ciphering in GSM
★ Authentication
The algorithm by name A3 is used for authentication in the GSM systems
This algorithm is used in implementing Subscriber Identity Module.


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Which up-link/ down-link spectrum is allocated to following?
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