3GPP TSG-S3 Meeting #8
Sophia Antipolis, 16 - 19 November, 1999	Tdoc S3-99448	

To:	TSG CN OSA ad-hoc
Copy:	TSG SA WG1, TSG SA WG2
From:	TSG SA WG3

Security issues in VHE/OSA
S3 thank CN OSA ad hoc for their LS (NP-OSA-99025 = S3-99405) which points out that 22.121 v3.1.0 does not contain any substantial security requirements. S3 have also assumed that there are no additional security requirements beyond those covered within the framework service capability features.

Please find attached a previous LS send by S3 to S2 on this subject. 

TSG-SA WG3 (Security) meeting #6	TSGS-WG3#6(99)346
Sophia Antipolis, 29 September – 1 October, 1999	

Source:	TSG-S3
To:	TSG-S2
Title:	Support for VHE/OSA Stage 2

S3 thanks S2 for their LS (S2-99793 = S3-99291) requesting support for VHE/OSA Stage 2. On the three areas of work identified in the LS, S3 respond as follows:

1.	MExE

The specification of security features in MExE Release 99 is part of the S3 workplan. The work was recently transferred from SMG10 who were involved in MExE Release 98 security. The S3 rapporteur for this work item is Tim Wright (tim.wright@vf.vodafone.co.uk).

2.	CAMEL

CAMEL Phase 2 security was reviewed by SMG10. S3 have not reviewed the security of CAMEL Phase 3. However, within the context of an S3 work item on core network security, investigations will be carried out to extend the mechanisms in TS33.102 to secure INAP signalling.

3.	SAT 

S3 currently have no plans to update the secure transport mechanisms for SAT specified in GSM 03.48. The intention is to transfer these mechanisms into the corresponding 3GPP specification for Release 99.