Ricoh Aficio MP 5002 Security Target - Page 94
Software Verification Function, Fax Line Separation Function
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Each MFP application (Copy Function, Printer Function, Scanner Function, Document Server Function and Fax Function) Function type Page 93 of 93 The values specified for each function type is as follows: For Copy Function, values to identify Copy Function. For Document Server Function, values to identify Document Server Function. For Printer Function, values to identify Printer Function. For Scanner Function, values to identify Scanner Function. For Fax Function, values to identify Fax Function. 7.9 Software Verification Function The Software Verification Function is to verify the integrity of the executable codes of the MFP Control Software and FCU Control Software and confirm that these codes can be trusted. FPT_TST.1 The TOE verifies software at the TOE start-up. The TOE verifies the integrity of the MFP Control Software first by using the hash and then by checking the certificate. If the hash does not match its original value or the certificate verification fails, the TOE displays the error message and becomes unavailable. If the hash matches its original value and the certificate is verified, the TOE becomes available. The TOE also verifies the integrity of the audit log data files. The TOE outputs the information used for integrity verification so that the integrity of the FCU Control Software can be verified. To check the integrity of the FCU Control Software, the information the TOE outputs will be compared with the information described in the guidance documents, so that the integrity of the FCU Control Software can be verified. 7.10 Fax Line Separation Function The Fax Line Separation Function is to receive only faxes as input information from telephone lines so that unauthorised intrusion from telephone lines can be prevented. This function also can be used to prohibit transmissions of received faxes so that unauthorised intrusion from telephone lines to the LAN can be prevented. FPT_FDI_EXP.1 The TOE receives fax data only as input information from telephone lines. If any communication that does not comply with the fax protocol is performed, the line is disconnected. Since the TOE is set to prohibit forwarding of received fax data during installation, received fax data will not be forwarded. Copyright (c) 2012 RICOH COMPANY, LTD. All rights reserved.