22.5.12 NB-IoT / EPS NAS integrity and encryption / ZUC

36.523-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Packet Core (EPC)Part 1: Protocol conformance specificationRelease 17TSUser Equipment (UE) conformance specification

22.5.12.1 Test Purpose (TP)

(1)

with { successful completion of EPS authentication and key agreement (AKA) procedure }

ensure that {

when { UE in NB-S1 mode receives an integrity protected and ciphering SECURITY MODE COMMAND message instructing to start integrity protection and ciphering algorithm with ZUC }

then { UE transmits an integrity protected with ZUC and ciphering SECURITY MODE COMPLETE and starts applying the NAS Integrity protection and NAS ciphering in both UL and DL }

(2)

with { Integrity protection and ciphering successful started by executing Security Mode Procedure}

ensure that {

when { UE in NB-S1 mode receives an IDENTITY REQUEST message without integrity protected }

then { UE does not transmit an IDENTITY RESPONSE message }

}

22.5.12.2 Conformance requirements

Same Conformance requirements as in clause 22.5.10.2

22.5.12.3 Test description

22.5.12.3.1 Pre-test conditions

Same Pre-test conditions as in clause 22.5.10.3.1

22.5.12.3.2 Test procedure sequence

22.5.12.3.2 Test procedure sequence

Same Test procedure sequence as in table 22.5.10.3.2.1, except the integrity protection algorithm is ZUC.

22.5.12.3.3 Specific message contents

Table 22.5.12.3.3-1: SECURITY MODE COMMAND (Step 7)

Derivation path: 36.508 table 4.7.2-19
Information Element	Value/Remark	Comment	Condition
Selected NAS security algorithms
– Type of integrity protection algorithm	011	EPS integrity algorithm 128-EIA3 (ZUC)
– Type of ciphering algorithm	011	EPS ciphering algorithm 128-EEA3 (ZUC)