APC Battery Management System manual SSH Server Configuration

Battery Management System

USER’S GUIDE

®

Option	Description
SSH Server Configuration
SSHv1	Enables or disables DES, and displays the status (always enabled) of
Encryption	Blowfish, two encryption algorithms (block ciphers) compatible with
Algorithms	SSH, version 1, clients.
	• DES: The key length is 56 bits.
	• Blowfish: The key length is 128 bits. You cannot disable this algorithm.
	NOTE: Not all SSH clients can use every algorithm. If your SSH client
	cannot use Blowfish, you must also enable DES.
SSHv2	Enables or disables the following encryption algorithms (Block Ciphers)
Encryption	that are compatible with SSH version 2 clients.
Algorithms	• 3DES (enabled by default): The key length is 168 bits.
	• Blowfish (enabled by default): The key length is 128 bits.
	• AES 128: The key length is 128 bits.
	• AES 256: The key length is 256 bits.
	NOTE: Not all SSH clients can use every algorithm. Your SSH client
	selects the algorithm that provides the highest security from among the
	enabled algorithms that it is able to use. (If your SSH client cannot use
	either of the default algorithms, you must enable an AES algorithm that it
	can use.)

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