Ricoh C400DN Security Target - Page 72

O.CONF.NO_DIS Protection of TSF confidential data disclosure, O.CONF.NO_ALT Protection of TSF

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Page 71 of 91 By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional requirements for these countermeasures, O.PROT.NO_ALT is fulfilled. O.CONF.NO_DIS Protection of TSF confidential data disclosure O.CONF.NO_DIS is the security objective to allow only users who can maintain the security to disclose the TSF confidential data. To fulfil this security objective, it is required to implement the following countermeasures. (1) Management of the TSF confidential data. FMT_MTD.1 allows the MFP administrator and applicable normal user to operate the login password of normal user. A supervisor is allowed to operate the login password of supervisor. The supervisor and applicable MFP administrator are allowed to operate the login password of administrator. The MFP administrator is only allowed to operate the audit log and HDD cryptographic key. (2) Specification of the Management Function. FMT_SMF.1 performs the required Management Functions for Security Function. (3) Specification of the roles. FMT_SMR.1 maintains the users who have the privileges. (4) Use trusted channels for sending or receiving TSF confidential data. The TSF confidential data sent and received by the TOE via the LAN are protected by FTP_ITC.1. By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional requirements for these countermeasures, O.CONF.NO_DIS is fulfilled. O.CONF.NO_ALT Protection of TSF confidential data alteration O.CONF.NO_ALT is the security objective to allow only users who can maintain the security to alter the TSF confidential data. To fulfil this security objective, it is required to implement the following countermeasures. (1) Management of the TSF confidential data. FMT_MTD.1 allows the MFP administrator and applicable normal user to operate the login password of normal user. A supervisor is allowed to operate the login password of supervisor. The supervisor and applicable MFP administrator are allowed to operate the login password of administrator. The MFP administrator is only allowed to operate the audit log and newly create an HDD cryptographic key. (2) Specification of the Management Function. FMT_SMF.1 performs the required Management Functions for Security Function. (3) Specification of the roles. FMT_SMR.1 maintains the users who have the privileges. (4) Use trusted channels for sending or receiving TSF confidential data. The TSF confidential data sent and received by the TOE via the LAN are protected by FTP_ITC.1. By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional requirements for these countermeasures, O.CONF.NO_ALT is fulfilled. Copyright (c) 2012 RICOH COMPANY, LTD. All rights reserved.

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Page 71 of
91
Copyright (c) 2012 RICOH COMPANY, LTD. All rights reserved.
By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional
requirements for these countermeasures, O.PROT.NO_ALT is fulfilled.
O.CONF.NO_DIS Protection of TSF confidential data disclosure
O.CONF.NO_DIS is the security objective to allow only users who can maintain the security to disclose the
TSF confidential data. To fulfil this security objective, it is required to implement the following
countermeasures.
(1)
Management of the TSF confidential data.
FMT_MTD.1 allows the MFP administrator and applicable normal user to operate the login password
of normal user. A supervisor is allowed to operate the login password of supervisor. The supervisor and
applicable MFP administrator are allowed to operate the login password of administrator. The MFP
administrator is only allowed to operate the audit log and HDD cryptographic key.
(2)
Specification of the Management Function.
FMT_SMF.1 performs the required Management Functions for Security Function.
(3)
Specification of the roles.
FMT_SMR.1 maintains the users who have the privileges.
(4)
Use trusted channels for sending or receiving TSF confidential data.
The TSF confidential data sent and received by the TOE via the LAN are protected by FTP_ITC.1.
By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional
requirements for these countermeasures, O.CONF.NO_DIS is fulfilled.
O.CONF.NO_ALT Protection of TSF confidential data alteration
O.CONF.NO_ALT is the security objective to allow only users who can maintain the security to alter the
TSF confidential data. To fulfil this security objective, it is required to implement the following
countermeasures.
(1)
Management of the TSF confidential data.
FMT_MTD.1 allows the MFP administrator and applicable normal user to operate the login password
of normal user. A supervisor is allowed to operate the login password of supervisor. The supervisor and
applicable MFP administrator are allowed to operate the login password of administrator. The MFP
administrator is only allowed to operate the audit log and newly create an HDD cryptographic key.
(2)
Specification of the Management Function.
FMT_SMF.1 performs the required Management Functions for Security Function.
(3)
Specification of the roles.
FMT_SMR.1 maintains the users who have the privileges.
(4)
Use trusted channels for sending or receiving TSF confidential data.
The TSF confidential data sent and received by the TOE via the LAN are protected by FTP_ITC.1.
By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional
requirements for these countermeasures, O.CONF.NO_ALT is fulfilled.