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Ricoh Aficio SP C820DN Design Guide - Page 61

Protection of the Journal and Documents in Document Server Storage, 4-4 Protection of FAX

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Print Controller Design Guide for Information Security • When User Authentication is enabled, it is possible to set the authenticated user as the "Sender" of the FAX data. Similarly, for Internet FAX transmission, it is possible to set the authenticated user as the "Sender" of the e-mail, i.e. the user who appears in the "From" field of the e-mail. • It is possible to restrict the use of the FAX function to specific users as well as to specific Document server documents, preventing any unauthorized access to this information. • In order to guard against the reception of unnecessary or unwanted data, such as SPAM e-mail, it is possible to register a list of authorized senders so that the MFP only accepts incoming data from these senders. Conversely, it is also possible to register a list of unauthorized senders, so that the MFP rejects any incoming data from these senders. • For more details, please refer to 2.3 Scanner (MFP Models Only). 2-4-3 Protection of the Journal and Documents in Document Server Storage • When User Authentication is enabled, only authenticated users are permitted to perform any changes to the documents they have transmitted, including the deletion or cancellation of a transmission job or the addition of address(es). When the Journal is printed out, only the results for the authenticated user appear on the printout. • The only operation Machine Administrators are capable of performing on FAX jobs is job cancellation. They are not authorized to perform other operations such as adding or deleting destinations. Also, when the Machine Administrator prints out the Journal, the communication results for all users are printed out on the report. 2-4-4 Protection of FAX Transmission Operations • By setting restrictions on Address Book destinations in addition to enabling User Authentication, it is possible to limit access to the destinations listed in the Address Book. After clearing authentication, general users are able to select only those destinations that have been set to allow this. In addition, the MFP can be set so that users can only transmit data to destinations registered in the MFP. • It is possible to assign access restrictions to individual Document Server documents, so that only users with the required access privileges can perform operations on the document. Since this feature requires a specific access level to perform specific operations, it prevents unauthorized operations from being performed on the document (e.g. viewing, deleting). Also, documents that have not been assigned any access level cannot be sent as a FAX or printed out. Page 61 of 86

Section	Page
04/23/2010	1
For these details, please refer to the Operating Instructions for the specific machine in question.	6
Hardware Configuration	7
MFP	7
LP	9
TPM (Trusted Platform Module): When the MFP/LP main power is turned on, this security module (chip) performs a verification on the validity of the software installed on the hardware platform, which includes checking for any illegal alterations.	10
Shared Service Layers	11
Principal Machine Functions	12
Data Security	14
External I/F	14
Protection of Program Data from Illegal Access via an External Device	14
IC card-based authentication functions: Authentication is mutual and encrypted, which prevents impersonation and ensures that data is properly protected.	16
Firmware Installation/Update	17
Remote Firmware Installation via Web SmartDeviceMonitor Professional IS (performed by the end user)	19
Verification of Firmware/Program Validity	20
Note: Produced by STMicroelectronics, TPM is a product of the ST19WP18 family, which has earned Common Criteria certification (EAL5+).	20
Authentication	21
IC Card Authentication	24
Access Control	25
In addition, it is possible to create an access control list (ACL) for each individual Address Book entry and Document Server document at both the individual user and group levels.	25
If the MLP/LP is initialized in this way, all of the user information, document data, and settings stored in the MLP/LP since installation will be initialized (erased).	26
Data Erase/Overwrite	27
To execute the overwrite, the operator can choose from two options: \	28
The execution of this feature does not clear engine-related information such as the value of the total counter, or engine-related adjustment settings contained in SP mode and UP mode.	28
Through this arrangement, the copy of the HDD storage key is automatically decrypted once the Encryption Key Restore has been completed.	31
Document Server Documents (MFP models only)	33
Access Privileges and Operations for Stored Documents	34
Without HDD: 500 entries	38
Overview of Capture Operations	39
Operations that Generate Captured Images	39
Capture Settings	41
Security Considerations	42
Captured Documents and Log Data	42
Additional Methods for Increased Security	42
(Authentication not required)	42
Copier (MFP Models Only)	43
Overview of Copier Operations	43
Data Security Considerations	43
Protection of Copy Jobs in Progress	43
Protection of Document Server Documents	43
Refer to 1.7.2 Document Server Documents (MFP models only) for details on the Document Lock feature.	44
Restricting the Available Functions for Each Individual User	45
Job/Access Log Data Collection	45
Print Backup	45
(printing out, editing, copying).	46
Overview of Printer Operations	47
Data Flow	47
Data Security Considerations	51
The \	53
Overview of Scanner Operations	54
Data Flow Security Considerations	54
Protection of Data when Performing Scanning and Sending Operations	55
Protection of Document Server Documents	56
Protection of Sending Results and Status Information	57
Protection of the Scanner Features Settings	57
Data Stored in the Job Log	58
Terminology	58
FTP (File Transfer Protocol): A protocol used when transferring files over a TCP/IP network.	58
Overview of FAX operations	59
Data Security Considerations	60
Protection of the Journal and Documents in Document Server Storage	61
Protection of FAX Transmission Operations	61
Protection of FAX Features Settings	62
The \	62
Job Log	62
Protection of Internet FAX Transmissions using S/MIME	62
Preventing FAX Transmission to Unintended Destination(s)	63
This prevents a FAX from being sent to an unintended destination when, for example, the operator accidentally touches an additional Quick Dial key.	63
Overview of NetFile Operations	64
Data Flow	65
Supplementary	65
Network Topology for a System Using Integration Server Authentication (Sample)	66
As long as the track ID is not stolen from the communication path between the PC and MFP/LP (which can be protected against by enabling SSL encryption) or from the PC itself, it is impossible to perform any unauthorized operations on these print jobs	68
Web Server Framework	69
WebDocBox (MFP models only)	70
For more details on job and access logs, please refer to 1.9 Job/Access Logs.	72
@Remote	73
Overview of @Remote Operations	73
Data Security Considerations	73
Security is increased even further by the fact that the symmetric key used is not a static key, but rather one that is generated every time a new session is initiated.	73
Overview of Copy Data Security Operations	74
Data Flow	75
Following this, an entry for the event itself is stored in the access log, along with the username.	75
Overview of Operations	77
1	77
Overview of SDK Application Functions	79
3: DSDK Œ MFP/LP Hardware Configuration	79
Scanning Functions: Sending Data Over the Network with the Copier and Scanner (MFP models only)	80
FAX Functions (MFP models only)	80
Network Functions	81
Printer Functions	81
Machine Administrative Functions (MFP models only)	81
Authentication Functions	81
Data Security Considerations	83
Preventing the Installation of Illegal Applications	83
Authentication of SDK Applications at Installation	83
Prevention of Access to Address Book Data and Machine Management Data	85
Protection Against Attacks on Principal MFP/LP Functions, Prevention of Damage to the System	85
Protection Against Attacks from External Sources	85

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Print Controller Design Guide for Information Security

Page 61 of 86

•

When User Authentication is enabled, it is possible to set the authenticated user as the “Sender” of the

FAX data. Similarly, for Internet FAX transmission, it is possible to set the authenticated user as the

“Sender” of the e-mail, i.e. the user who appears in the “From” field of the e-mail.

•

It is possible to restrict the use of the FAX function to specific users as well as to specific Document

server documents, preventing any unauthorized access to this information.

•

In order to guard against the reception of unnecessary or unwanted data, such as SPAM e-mail, it is

possible to register a list of authorized senders so that the MFP only accepts incoming data from these

senders. Conversely, it is also possible to register a list of unauthorized senders, so that the MFP

rejects any incoming data from these senders.

•

For more details, please refer to 2.3 Scanner (MFP Models Only)

2-4-3 Protection of the Journal and Documents in Document Server Storage

•

When User Authentication is enabled, only authenticated users are permitted to perform any changes

to the documents they have transmitted, including the deletion or cancellation of a transmission job or

the addition of address(es). When the Journal is printed out, only the results for the authenticated user

appear on the printout.

•

The only operation Machine Administrators are capable of performing on FAX jobs is job cancellation.

They are not authorized to perform other operations such as adding or deleting destinations. Also,

when the Machine Administrator prints out the Journal, the communication results for all users are

printed out on the report.

2-4-4 Protection of FAX Transmission Operations

•

By setting restrictions on Address Book destinations in addition to enabling User Authentication, it is

possible to limit access to the destinations listed in the Address Book. After clearing authentication,

general users are able to select only those destinations that have been set to allow this. In addition,

the MFP can be set so that users can only transmit data to destinations registered in the MFP.

•

It is possible to assign access restrictions to individual Document Server documents, so that only

users with the required access privileges can perform operations on the document. Since this feature

requires a specific access level to perform specific operations, it prevents unauthorized operations

from being performed on the document (e.g. viewing, deleting). Also, documents that have not been

assigned any access level cannot be sent as a FAX or printed out.