Page 61 of 82
Copyright (c) 2010 RICOH COMPANY, LTD. All Rights Reserved.
O.GENUINE Protection of integrity of MFP Control Software integrity
Following are the rationale behind the functional requirements corresponding to O.GENUINE in Table 23,
and these requirements are included to fulfil the O.GENUINE specification.
a) Check the integrity of the MFP Control Software
To fulfil O.GENUINE, the integrity of the MFP Control Software shall be verified. For this,
FPT_TST.1 tests the integrity of the executable code of the MFP Control Software, and verifies its
integrity at TOE start-up .
O.LINE_PROTECT Protection from intrusion via telephone line
Following are the rationale behind the functional requirements corresponding to O.LINE.PROTECT in
Table 23, and these requirements are included to fulfil the O.LINE.PROTECT specification.
a) Prohibit intrusion via the fax line.
To fulfil O.LINE_PROTECT, unauthorised access by an attacker to the TOE via telephone line shall
be prevented.
For this, FDP_IFC.1 and FDP_IFF.1 allow fax data to pass from the fax process on the Fax Unit to the
fax reception process on the Controller Board only if the data received from the telephone line is fax
data.
6.3.3 Dependency Analysis
Table 24 shows the correspondence of dependencies in this ST for the TOE security functional
requirements.
Table 24: Correspondence of dependencies of TOE security functional requirements
TOE security
functional
requirements
Dependencies
claimed by CC
Dependencies
satisfied in ST
Dependencies not
satisfied in ST
FAU_GEN.1 FPT_STM.1 FPT_STM.1 None
FAU_SAR.1 FAU_GEN.1 FAU_GEN.1 None
FAU_SAR.2 FAU_SAR.1 FAU_SAR.1 None
FAU_STG.1 FAU_GEN.1 FAU_GEN.1 None
FAU_STG.4 FAU_STG.1 FAU_STG.1 None
FCS_CKM.1
[FCS_CKM.2 or
FCS_COP.1]
FCS_CKM.4
FCS_COP.1 FCS_CKM.4
FCS_COP.1
[FDP_ITC.1 or
FDP_ITC.2 or
FCS_CKM.1]
FCS_CKM.4
FCS_CKM.1 FCS_CKM.4
FDP_ACC.1 FDP_ACF.1 FDP_ACF.1 None
FDP_ACF.1 FDP_ACC.1
FMT_MSA.3
FDP_ACC.1
FMT_MSA.3
None
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