D-Link DGS-3630-28SC [568/742] Ssl global settings

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide

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• Hash Algorithm: This part of the cipher suite allows the user to choose a message digest function which will

determine a Message Authentication Code. This Message Authentication Code will be encrypted with a sent

message to provide integrity and prevent against replay attacks. The Switch supports three hash algorithms,

MD5 (Message Digest 5), SHA (Secure Hash Algorithm), and SHA256.

These three parameters are uniquely assembled in four choices on the Switch to create a three-layered encryption

code for secure communication between the server and the client. The user may implement any one or combination of

the cipher suites available, yet different cipher suites will affect the security level and the performance of the secured

connection. The information included in the cipher suites is not included with the Switch and requires downloading

from a third source in a file form called a certificate. This function of the Switch cannot be executed without the

presence and implementation of the certificate file and can be downloaded to the Switch by utilizing a TFTP server or

the Switch file system. The Switch supports TLS 1.0, TLS 1.1, and TLS 1.2. Other versions of SSL may not be

compatible with this Switch and may cause problems upon authentication and transfer of messages from client to

server.

When the SSL function has been enabled, the web will become disabled. To manage the Switch through the web

based management while utilizing the SSL function, the web browser must support SSL encryption and the header of

the URL must begin with https:// (Ex. https://xx.xx.xx.xx). Any other method will result in an error and no access can

be authorized for the web-based management.

Users can download a certificate file for the SSL function on the Switch from a TFTP server. The certificate file is a

data record used for authenticating devices on the network. It contains information on the owner, keys for

authentication and digital signatures. Both the server and the client must have consistent certificate files for optimal

use of the SSL function. Currently, the Switch comes with a certificate pre-loaded though the user may need to

download more, depending on user circumstances.

SSL Global Settings

This window is used to display and configure the global SSL settings.

To view the following window, click Security > SSL > SSL Global Settings, as shown below:

Figure 9-97 SSL Global Settings Window

The fields that can be configured in SSL Global Settings are described below:

Parameter Description

SSL Status

Select to enable or disable the global SSL status here.

Service Policy

Enter the service policy name here. This name can be up to 32 characters long.

Click the Apply button to accept the changes made.

The fields that can be configured in Import File are described below:

Parameter Description

File Select

Select the file type that will be loaded here. Options to choose from are

Certificate and Private Key. After selecting the file type, browse to the

appropriate file, located on the local computer, by pressing the Browse button.