7 Exceptional procedures

22.0483GPPSecurity mechanisms for the (U)SIM application toolkitStage 1TS

7.1 Authentication or integrity failure

In the case of authentication or integrity failure, the received message shall be discarded. If proof of receipt has been requested, then a Status Code indicating the reason for failure shall be returned to the Sending Entity.

7.2 Sequence and replay detection failure

There are several mechanisms whereby counter value synchronisation can be maintained, or regained if synchronisation is lost If synchronisation cannot be regained, the Receiving Entity shall discard any Secured Packet with an unsynchronised counter value. In addition, if proof of receipt has been requested, then a Status Code indicating the reason for failure shall be returned to the Sending Entity.

7.3 Proof of receipt failure

The Sending Entity shall inform the Sending Application of the failure to deliver the Application Message, indicating the reason for failure.

Annex A (informative):
Change History

This annex lists all changes made to the present document since its initial approval.

Change history

Date

TSG #

TSG Doc.

CR

Rev

Subject/Comment

Old

New

2001-06

TP-12

TP-010103

001

Alignment with 3G release-4 specifications

NOTE: This CR converts the terminology in TS 02.48 v8.0.0 to apply to both GSM and 3G. With this change, the specification number changes from TS 02.48 to TS 23.048.

4.0.0

2003-06

TP-20

The specification was upgraded to Rel-5 with no CR in order to have a complete set of Rel-5 specifications. The contents is equal to the Rel-4 version 4.0.0.

4.0.0

5.0.0