Mind map
10.4 GSM Auth
Map content
10.4 GSM Auth
Algorithms
- Two Main Algorithms often combined into a single algorithm
- A3 for Authentication
- A8 for encryption key generation = Kc
- Located in both SIM and Home Users NW
- Standardisation of A3/A8 not required, operators can chose their own
- COMP 128
- Weak algor thats suceptible to allow Ki to be exposed with enough effort
- Two Main Algorithms often combined into a single algorithm
Auth Security Issues
- Communications are carried over core NW shared by operators
- Use of IPSEC to secure comms between different NW operators Networks
- Historically a trusted NW using SS7 Protocols
- AuC requires logical and Physical protection
- DB of Ki's stored in AUC
- Access must be restricted
- Ki's transported from SIM manufactured to NW operator in encrypted form
- Communications are carried over core NW shared by operators
Information
- Description
- Masters Degree Network Security Mind Map on 10.4 GSM Auth, created by Craig Parker on 15/03/2014.
- Created by
- Craig Parker
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