Konica Minolta C250i bizhub C360i/C300i/C250i Security Operations User Manual - Page 35

bizhub C360i/C300i/C250i/C036DNi/C030DNi/C025DNi

2-15

2.4

Setting IPsec

2

2.4

Setting IPsec

The following are the authentication algorithms for the IPsec communication.

2.4.1

IPsec setting

The

Web connection

needs to be used to set the device certificate and an external certificate used in the

IPsec network setting. Refer to "Home > Web Management Tool > Reinforcing Security > Encrypting Com-

munications > Using IPsec communication" in the HTML manual for registration before setting [Enhanced Se-

curity Mode] to [ON].

Any certificate other than the IPsec certificate cannot be registered.

Use [IPsec Setting] in the settings below.

When using [Pre-Shared Key] in the machine for the authentication method of the communication counter-

part, set a hard-to-guess value to [Pre-Shared Key Text] to prevent the value from leaking to nobody but the

counterpart, in an appropriate manner.

Do not set a value that can be easily guessed such as a birthday and an employee identification number. It

is recommended, from the viewpoint of security, to set a large-size key of 128 characters or less.

Leakage of the Pre-Shared Key strings of IPsec that have been set to the MFP results in an increased risk of

spoofing of the MFP. Set different Pre-Shared Key strings for each device and safely keep them. Set and use

strings that cannot be deciphered by dictionary attack and brute force attack, without using words in a dic-

tionary and/or easily guessable strings.

[SHA-1] of [IPsec Setting] - [IKEv-1] - [Authentication Algorithm] and [Digital Signature] of [IPsec Setting] -

[SA] - [IKE Setting] - [Authentication Method] cannot be set simultaneously. The setting set earlier is given

priority.

A certificate for the machine that has been issued by the reliable CA (certification authority) is required to

adopt [Digital Signature Certificate] for the authentication method. To verify the chain of a presented certifi-

cate, the certificate for the CA issuing the presented certificate needs to be imported. For details of the pro-

cedure, see page 2-67.

The administrator should regularly check the certificate for devices in communication with the machine by

using the digital signature certificate. When finding that the certificate is invalid (expired), the administrator

must immediately cease the communication with the relevant device. To resume the communication with the

IPsec IKE authentication algo-

rithm

•

SHA-1

•

SHA-2 (256bit/384bit/512bit)

IPsec ESP authentication algo-

rithm

Setting item

Setting value

IKEv1

[Encryption Algorithm]

AES-CBC (128bit/256bit)

[Authentication Algorithm]

SHA-1 or SHA-2 (256bit/384bit/512bit)

[Encryption Key Validity Period]

600 to 86,400 sec. (set within 24 hours)

[Diffie-Hellman Group]

Group 14

[Negotiation Mode]

Main Mode (default)

SA

[Encapsulation Mode]

Transport (default)

[Security Protocol]

ESP

[Key Exchange Method]

IKEv1 (default)

[Lifetime After Establishing SA]

600 to 28,800 sec. (set within 8 hours)

[Authentication Method]

Pre-Shared Key or Digital Signature

[ESP Encryption Algorithm]

AES-CBC (128bit/256bit)

[ESP Authentication Algorithm]

SHA-1 or SHA-2 (256bit/384bit/512bit)

Peer

[Pre-Shared Key Text]

ASCII code (2 to 128 characters) or HEX code (up

to 256 characters)

Section	Page
Contents	2
1 Security	6
1.1 Introduction	6
1.1.1 Persons using the machine	6
1.1.2 Relation between user and job deletion	7
1.2 Compliance with the ISO15408 Standard	8
1.2.1 Hardware and software	8
1.2.2 Installation of firmware	8
1.2.3 Operating precautions	9
1.2.4 INSTALLATION CHECKLIST	10
1.3 Enhanced security mode	13
1.3.1 Major security functions in operation under ISO15408 certification	13
1.4 Precautions for operation control	13
1.4.1 Roles of the owner of the machine	13
1.4.2 Roles and requirements of the administrator	14
1.4.3 Password usage requirements	14
1.4.4 External authentication server control requirements	14
1.4.5 Security function operation setting operating requirements	15
1.4.6 Operation and control of the machine	15
1.4.7 Machine maintenance control	17
1.4.8 Precautions for using the printer driver	17
1.5 Miscellaneous	18
1.5.1 Password rules	18
1.5.2 Precautions for use of various types of applications	18
1.5.3 Encrypting communications	19
1.5.4 Print functions	19
IPP printing	19
1.5.5 FAX functions	19
1.5.6 USB keyboard	19
1.5.7 Different types of boxes	19
1.5.8 Terminating a session and logging out	20
1.5.9 Authentication error during external server authentication	20
1.5.10 Finding the version information	20
2 Administrator Operations	22
2.1 Accessing the administrator mode	22
2.1.1 Accessing the administrator mode	22
2.1.2 Accessing the user mode	27
2.1.3 Checking the number of wrong entries in authentication	29
Conditions to clear the number of times of check	29
2.2 Enhancing the security function	30
2.2.1 Items cleared by format	32
2.2.2 Setting the Enhanced Security Mode	33
2.3 Setting the password rules	34
2.3.1 Setting the password rules	34
2.4 Setting IPsec	35
2.4.1 IPsec setting	35
2.5 Firmware verification function at the time of starting the machine	37
2.5.1 Setting the firmware verification function	37
2.5.2 Self-test function	37
2.6 Preventing unauthorized access	38
2.6.1 Setting Prohibited Functions	38
2.7 Canceling the operation prohibited state	39
2.7.1 Performing release setting	39
2.8 Setting the authentication method	40
2.8.1 Setting the authentication method	40
2.8.2 Setting the external server	41
2.9 ID & Print setting function	42
2.9.1 Setting ID & Print	42
2.10 System auto reset function	43
2.10.1 Setting the system auto reset function	43
2.11 User setting function	44
2.11.1 Making user setting	44
2.12 User box function	46
2.12.1 Setting user box usage restriction	46
2.12.2 Setting the user box	47
2.12.3 Changing the user attributes and box password	48
2.12.4 Setting Memory RX	49
2.12.5 Batch deleting the documents in the Memory RX User Box	49
2.13 Changing the administrator password	50
2.13.1 Changing the administrator password	50
2.14 Obtaining job log	51
2.14.1 Obtaining and deleting a job log	51
2.14.2 Job log data	53
2.15 Setting time/date in machine	80
2.15.1 Setting time/date	80
2.15.2 Setting daylight saving time	80
2.16 TCP/IP setting function	81
2.16.1 Setting the IP Address	81
2.16.2 Registering the DNS server	81
2.17 E-mail setting function	82
2.17.1 Setting the SMTP server (E-mail server)	82
2.18 SMB setting function	83
2.18.1 Setting a client	83
2.19 WebDAV setting function	84
2.19.1 Setting a client	84
2.20 Automatic logoff setting function	85
2.20.1 Setting automatic logoff	85
2.21 Setting for the IPsec communication certificate	86
2.21.1 Introducing the device certificate for IPsec communication	86
2.21.2 Deleting the IPsec communication device certificate	86
2.21.3 Introducing the CA (certification authority) certificate for IPsec communication	87
2.22 FIPS mode setting function	88
2.22.1 Setting the FIPS mode	88
2.23 Firmware update function	89
2.23.1 Updating the firmware	89
2.24 Job deletion setting function	90
2.24.1 Setting the job deletion	90
3 User Operations	92
3.1 User authentication function	92
3.1.1 Performing user authentication	92
3.1.2 Accessing the ID & Print document	95
3.1.3 Number of wrong entries in authentication	95
Conditions to clear the number of times of check	95
3.2 Change password function	96
3.2.1 Performing change password	96
3.3 User box function	97
3.3.1 Setting the user box	97
3.3.2 Changing the user attributes and box password	98
3.3.3 Accessing the user box and user box file	99
3.3.4 Number of wrong entries in entering the box password	100
Conditions to clear the number of times of check	100
Appendix	102
1. Installation of the machine and steps to be performed before operation	103
1.1 Unpacking and setting up the machine	103
1.1.1 Installation and setup of the machine	103
2. FAX function	104
2.1 Installing/setting procedure of the FAX kit	104
2.1.1 Install procedure	104
2.1.2 Routing of the modular cable	104
2.1.3 Affixing the labels	105
2.1.4 Configuration procedures	105

Konica Minolta C250i bizhub C360i/C300i/C250i Security Operations User Manual - Page 35

Setting IPsec

Page 35 highlights