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Tdoc T2X99088
3GPP TSG T WG2, SWG1 (MExE)
Tampere, Finland
15-16 July, 1999
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CHANGE REQUEST No :
Technical Specification GSM
Submitted to SMG
list SMG plenary meeting no. here 
23.057
for approval
for information
Version:
1.1.1
without presentation ("non-strategic")
with presentation ("strategic")
X
X
PT SMG CR cover form is available from: http://docbox.etsi.org/tech-org/smg/Document/smg/tools/CR_form/crf28_1.zip
Proposed change affects:
SIM
ME
X
Network
(at least one should be marked with an X)
Work item:
Source:
IBM, Bosch
Subject:
Clarification of trust hierarchy figure
Category:
F
A
B
C
D
(one category
and one release
only shall be
Date:
Correction
Corresponds to a correction in an earlier release
Addition of feature
Functional modification of feature
Editorial modification
Release:
X
15/07/99
Phase 2
Release 96
Release 97
Release 98
Release 99
X
marked with an X)
Reason for
change:
Clarification of figure 5: Trust hierarchy
Clauses affected:
8.1 8.1.1 modified text to explain figure 5: Trust hierarchy
Minimum supported trust hierarchy depth
Root Operator Key
Root Manufacturer Key
Root TTP1 Key
Root TTPn Key
Figure 5: Trust hierarchy
Figure 5 illustrates the MEXE trust hierarchy model showing certificates which have been certified by some certification
authorities which themselves are represented through their own certificate. The supported depth of trust hierarchies for
3GPP
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2
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verification of signed content must at least be one (indicated by the solid line certificates), but may be greater (indicated
by the dotted line certificates).
3GPP