Course 545: GSM , GPRS and UMTS Security

Having completed this course the participant will be able to understand how security is implemented, deployed and managed in GSM, GPRS and UMTS networks, understand security concepts, understand the benefits of new security techniques applied and how they are implemented.

The goal of this course is to give the participant a strong and intuitive understanding of what security in the wireless systems is and how the security functions are implemented in the GSM/GPRS/UMTS radio and core network. The course focuses both on the air interface and the core network.

Security Overview

• Basic security concepts
• Authentication
• Privacy
• Integrity
• Authorization
• Non-repudiation

Encryption

• Encryption Technologies
• Cryptography Keys
• Symmetric and Asymmetric
• Ciphers
• Cipher Suites
• Certificates

Overview of Wireless Security Requirements

• Wireless security needs
• Basic GSM, GPRS and UMTS security functions

GSM Security Review

• GSM security algorithms
• GSM authentication and authorization procedures
• GSM ciphering procedures
• Security threats to GSM

GPRS Security Review

• GPRS security algorithms
• GSM authentication and authorization procedures
• GPRS ciphering procedures
• Kasumi, GEA1, GEA2 and GEA3
• Security threats to GPRS

UMTS Security Review

• Security in UTRAN
• Security in the UMTS Core Network
• UMTS security algorithms
• UMTS authentication and authorization procedures
• UMTS ciphering procedures
• Security threats to UMTS

UMTS Authentication and Key Management

• AKA Algorithms
• Normal AKA procedure
• AKA procedure in the AuC
• AKA procedure in the USIM
• AKA procedure in the VLR/SGSN
•  Integrity function f9, Confidentiality function f8
• Milenage and KASUMI algorithms