Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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crypto key generate

Generates keys for the SSH server.

Syntax

crypto key generate {rsa | rsa1}

Parameters

rsa	Enter the keyword `rsa` then the key size to generate a SSHv2 RSA host keys. The range is from 1024 to 2048 if you did not enable FIPS mode; if you enabled FIPS mode, you can only generate a 2048-bit key. The default is 1024.
rsa1	Enter the keyword `rsa1` then the key size to generate a SSHv1 RSA host keys. The range is from 1024 to 2048. The default is 1024.

Defaults

Key size 1024; if you enable FIPS mode, the key size is 2048.

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
8.3.16.1	Introduced on the MXL 10/40GbE Switch IO Module.

Usage Information

The host keys are required for key-exchange by the SSH server. If the keys are not found when you enable the server ( ip ssh server enable), the keys are automatically generated.

This command requires user interaction and generates a prompt prior to overwriting any existing host keys.

NOTE: Only a user with superuser permissions should generate host-keys.

Example

Dell(conf)#crypto key generate rsa
                                             Enter key size <1024-2048>. Default<1024>  :
                                             Host key already exists. Overwrite (y/n)?y
                                             Generating 1024-bit SSHv2 RSA key.
                                             ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 
                                             Dell(conf)#
                                             Dell(conf)#crypto key generate rsa1
                                             Enter key size <1024-2048>. Default<1024>  :
                                             Host key already exists. Overwrite (y/n)?y
                                             Generating 1024-bit SSHv1 RSA key.
                                             ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
                                             Dell(conf)#

Related Commands

ip ssh server — enables the SSH server.

show crypto — displays the SSH host public keys.