Services (Access Methods); Encryption; Ssh And Sftp - GE Digital Energy 1018959 Operating Manual

Digital energy snmp / web adapter

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Table of Contents

8.2

SERVICES (ACCESS METHODS)

The table below lists the available services (access methods), highlighting the major security features for

each interface.

Interface

Local console interface

Remote console interface

SNMP Agent

File transfer

Web interface

8.3

As stated above, the SNMP/Web adapter offers interfaces providing encryption for protecting data

confidentiality and integrity, and particularly the following:

•

SSH (Secure Shell)

•

SFTP (SSH File Transfer Protocol)

•

HTTPS

In this context, encryption is based on public-key cryptography schemes. Normally, the SNMP/Web

adapters will be delivered already configured with all applicable keys and certificates – should the

adapter miss these information it will generate them at first start-up (this operation may take some

time). The length of the keys used for encryption is 1024 bits, providing complex encryption and a higher

level of security.

SSH allows running terminal sessions to the SNMP/Web adapter over a secure channel. SSH uses public-

key cryptography. The SSH server is authenticated using a host key as identification. Most SSH clients

display the host key fingerprint at the start of the SSH session. Below is an example from a popular SSH

client (putty):

Modifications reserved

OPM_CNT_SNM_BAS_CRD_1GB_V014.doc

Access methods

Serial cable

Telnet

SSH (Secure SHell)

SNMP

FTP

SFTP (SSH FTP)

HTTP

HTTPS (SSL)

Security features