S3-140709
3GPP TSG-SA3 (Security) Meeting #75
12 – 16 May 2014, Sapporo, Japan
CR-Form-v11
CHANGE REQUEST
CR 0206
rev - Current version:
33.203
12.5.0
For HELP on using this form: comprehensive instructions can be found at
http://www.3gpp.org/Change-Requests.
Proposed change affects:
UICC apps
ME X Radio Access Network
Core Network X
Title:
Description of authentication requirements in new Annex on TS 33.203
Source to WG:
Source to TSG:
China Mobile, Huawei
SA3
Work item code:
IMS_WebRTC
Date: 2014-05-05
B
Category:
Release: Rel-12
Use one of the following categories:
F (correction)
A (mirror corresponding to a change in an earlier
release)
B (addition of feature),
C (functional modification of feature)
D (editorial modification)
Detailed explanations of the above categories can
be found in 3GPP TR 21.900.
Use one of the following releases:
Rel-4
(Release 4)
Rel-5
(Release 5)
Rel-6
(Release 6)
Rel-7
(Release 7)
Rel-8
(Release 8)
Rel-9
(Release 9)
Rel-10 (Release 10)
Rel-11 (Release 11)
Rel-12 (Release 12)
Rel-13 (Release 13)
Reason for change:
According to agreed authenticaiton mechniasm, the authenticaiton requirements
for different interfaces are required.
Summary of change:
Requirements are defined based on corresponding text in the TR.
Add a security requirement to section X.2.2, X.3.2, and X.4.2 to clarifiy the
authentication requirement for interfaces including W1, W2, and W4.
Consequences if not
approved:
It lacks the authentication requiremens of WebRTC access to IMS in Rel-12.
Clauses affected:
Other specs
affected:
(show related CRs)
Other comments:
Y N
X Other core specifications
X Test specifications
X O&M Specifications
TS/TR ... CR ...
TS/TR ... CR ...
TS/TR ... CR ...
X.2
Authentication of WebRTC IMS Client with IMS subscription
re-using existing IMS authentication mechanisms
X.2.2 Requirements
-
REQ x: For the reference interface W1 (WIC to WWSF), one way authentication (WIC needs to authenticate
WWSF) is needed. For the interface W2 (WIC to eP-CSCF), the mutual authentication is required.
Editor’s note: Include the requirements pertaining to this scenario here, cf. clause 5 of TR 33.871.
X.3
Authentication of WebRTC IMS Client with IMS subscription
using web credentials
X.3.2 Requirements
-
REQ y: For the reference interfaces W1 (WIC to WWSF), W2 (WIC to eP-CSCF), and W4, if present, (WWSF
to WAF), the mutual authentication is required.
Editor’s note: Include the requirements pertaining to this scenario here, cf. clause 5 of TR 33.871.
Assignment of IMS identities to WebRTC IMS Client from pool of
IMS subscriptions held by WWSF
X.4.2 Requirements
-
REQz: For the reference interfaces W2 (WIC to eP-CSCF), and W4, if present, (WWSF to WAF), the mutual
authentication is required. And as for the W1, mutual authentication is needed, except for the anonymous
usecase. In the anonymous usercase, one way authentication (WIC needs to authenticate WWSF) is needed.
Editor’s note: Include the requirements pertaining to this scenario here, cf. clause 5 of TR 33.871.