Ricoh Aficio MP 6001 SP Security Target - Page 39

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4.3.2

Security Objectives Descriptions

The following describes the rationale for each security objective being appropriate to satisfy the threats,

assumptions and organisational security policies.

T.DOC.DIS

T.DOC.DIS is countered by O.DOC.NO_DIS, O.USER.AUTHORIZED and OE.USER.AUTHORIZED.

By OE.USER.AUTHORIZED, a permission for using the TOE as a user is granted to the persons who

follow the security policies and procedures of their organisation. By O.USER.AUTHORIZED, the TOE

requires identification and authentication of users, and users are authorised in accordance with the security

policies before being allowed to use the TOE. By O.DOC.NO_DIS, the TOE protects the documents from

unauthorised disclosure by persons without a login user name, or by persons with a login user name but

without an access permission to the document.

T.DOC.DIS is countered by these objectives.

T.DOC.ALT

T.DOC.ALT is countered by O.DOC.NO_ALT, O.USER.AUTHORIZED and OE.USER.AUTHORIZED.




policies before being allowed to use the TOE. By O.DOC.NO_ALT, the TOE protects the documents from

unauthorised alteration by persons without a login user name, or by persons with a login user name but

without an access permission to the document.

T.DOC.ALT is countered by these objectives.

T.FUNC.ALT

T.FUNC.ALT is countered by O.FUNC.NO_ALT, O.USER.AUTHORIZED and OE.USER.AUTHORIZED.




policies before being allowed to use the TOE. By O.FUNC.NO_ALT, the TOE protects the user jobs from

unauthorised alteration by persons without a login user name, or by persons with a login user name but

without an access permission to the user job.

T.FUNC.ALT is countered by these objectives.

T.PROT.ALT

T.PROT.ALT is countered by O.PROT.NO_ALT, O.USER.AUTHORIZED and OE.USER.AUTHORIZED.




policies before being allowed to use the TOE. By O.PROT.NO_ALT, the TOE protects the TSF protected

Copyright (c) 2011 RICOH COMPANY, LTD. All rights reserved.

Section	Page
1 ST Introduction	7
1.1 ST Reference	7
1.2 TOE Reference	7
1.3 TOE Overview	9
1.3.1 TOE Type	9
1.3.2 TOE Usage	9
1.3.3 Major Security Features of TOE	11
1.4 TOE Description	11
1.4.1 Physical Boundary of TOE	11
1.4.2 Guidance Documents	14
1.4.3 Definition of Users	17
1.4.3.1. Direct User	19
1.4.3.2. Indirect User	19
1.4.4 Logical Boundary of TOE	20
1.4.4.1. Basic Functions	20
1.4.4.2. Security Functions	23
1.4.5 Protected Assets	24
1.4.5.1. User Data	24
1.4.5.2. TSF Data	25
1.4.5.3. Functions	25
1.5 Glossary	25
1.5.1 Glossary for This ST	25
2 Conformance Claim	28
2.1 CC Conformance Claim	28
2.2 PP Claims	28
2.3 Package Claims	28
2.4 Conformance Claim Rationale	29
2.4.1 Consistency Claim with TOE Type in PP	29
2.4.2 Consistency Claim with Security Problems and Security Objectives in PP	29
2.4.3 Consistency Claim with Security Requirements in PP	29
3 Security Problem Definitions	32
3.1 Threats	32
3.2 Organisational Security Policies	33
3.3 Assumptions	33
4 Security Objectives	35
4.1 Security Objectives for TOE	35
4.2 Security Objectives of Operational Environment	36
4.2.1 IT Environment	36
4.2.2 Non-IT Environment	37
	37
4.3 Security Objectives Rationale	38
4.3.1 Correspondence Table of Security Objectives	38
4.3.2 Security Objectives Descriptions	39
5 Extended Components Definition	43
5.1 Restricted forwarding of data to external interfaces (FPT_FDI_EXP)	43
6 Security Requirements	45
6.1 Security Functional Requirements	45
6.1.1 Class FAU: Security audit	45
6.1.2 Class FCS: Cryptographic support	48
6.1.3 Class FDP: User data protection	49
6.1.4 Class FIA: Identification and authentication	53
6.1.5 Class FMT: Security management	56
6.1.6 Class FPT: Protection of the TSF	62
6.1.7 Class FTA: TOE access	62
6.1.8 Class FTP: Trusted path/channels	63
6.2 Security Assurance Requirements	63
6.3 Security Requirements Rationale	64
6.3.1 Tracing	64
6.3.2 Justification of Traceability	65
6.3.3 Dependency Analysis	71
6.3.4 Security Assurance Requirements Rationale	73

Ricoh Aficio MP 6001 SP Security Target - Page 39

T.doc.dis, T.doc.alt, T.func.alt, T.prot.alt

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