Mobile Sicherheit
MobSi
MobSi
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Lernkarten
GSM
Global System for Mobile Communication
MS
Mobile Station
BSS
Base Station Subsystem
- BTS
- (PCU)
- BSC
NSS
Network Subsystem
- MSC
- VLR
- HLR
- AUC
VLR
Visitor Location Register
HLR
Home Location Register
AUC
Authentication Center
IMSI
International Mobile Subscriber Identity
SIM
Subscriber Identity Module
PIN
Personal Identification Number
A3
- Benötigt Ki & RAND
- Produziert SRES
RAND
Random
- 128 bit
Ki
- Kennungsschlüßel ( Authentication Key)
- 128 bit
- in SIM gespeichert
- Statischer Schlüßel
SRES
- Sigend Response
- 32 bit
A8
- Benötigt RAND & Ki
- Produziert Kc
Kc
- Cyphering Key
- 64 bit
A5
- Benötigt: Kc & TDMA
- Produziert BitStrom ( 114bit)
PCU
Packet Control Unit
SGSN
Serving GPRS Support Node
GGSN
Gateway GPRS Support Node
GPRS
General Packet Radio Service
GEA
GPRS Encryption Algorithm