GSM Interview Question:

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

Submitted by: Muhammad

★ 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.
Submitted by: Muhammad