3 Definitions and abbreviations

01.563GPPCTS Authentication and Key Generation Algorithms RequirementsGSM Cordless Telephony System (CTS), Phase 1TS

3.1 Definitions

All definitions used in this specification are specified in GSM 03.20 Annex E.

3.2 Abbreviations

In addition to those mentioned below, abbreviations used in this specification are listed in GSM 01.04.

CTS Cordless Telephony System

SAGE Security Algorithms Group of Experts

CTS-ME CTS Mobile Equipment

MS-SIM Mobile Station CTS Subscriber Identity Module

FP-SIM Fixed Part CTS Subscriber Identity Module

CTS-MS A CTS-ME combined with a CTS-SIM

CTS-FP CTS Fixed Part

CTS-SN CTS Service Node

FPAC code entered by the CTS user to initialise a CTS-MS/CTS-FP

Ka CTS authentication key for a CTS-MS/CTS-FP pair

Kc CTS ciphering key for a CTS-MS/CTS-FP pair

Kop CTS authentication key used for the authentication of the CTS-FP by the CTS-SN and the authentication by the CTS-FP of the signature issued by the CTS-SN

Data1 CTS data constant used for the CTS-FP authentication by the CTS-SN

Data2 CTS data sequence to be signed by the CTS-SN and sent to the CTS-FP for signature authentication

MAC1 CTS result of the computation of the CTS-FP authentication algorithm using Kop and Data1

MAC2 CTS signature of the data sequence Data2

RIFP CTS Random Initial value sent from the CTS-MS to the CTS-FP

RIMS CTS Random Initial value sent from the CTS-FP to the CTS-MS

SRES1 CTS Signed RESponse of the CTS-FP’s CH1 and the Ka of the CTS-MS

SRES2 CTS Signed RESponse of the CTS-MS’s CH2 and the Ka of the CTS-FP

XSRES1 CTS Signed RESponse of the CTS-FP’s CH1 and the Ka of the CTS-FP (to be compared with SRES1)

XSRES2 CTS Signed RESponse of the CTS-MS’s CH2 and the Ka of the CTS-MS (to be compared with SRES2)