Using the SSH_KEYGEN Utility

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HP TCP/IP Services for OpenVMS Guide to SSH

SSH Command Reference

Remote Login and Command Execution with the SSH Command

Using the SSH_ADD Utility

Using the SSH_KEYGEN Utility

SSH_KEYGEN is the key-pair generation utility that generates and manages authentication keys for SSH. Users who need to use SSH with public-key authentication can run this utility to create authentication keys. The system administrator can also use this utility to generate host keys.

Command Synopsis

SSH_KEYGEN [-b key-number] [-t key_algorithm] [-c comment_string] [-e file] [-p passphrase] [-P ] [-h ] [-q] [-1 file] [-i file] [-D file] [-B number] [-V] [-r file] [-F file] [key1 key2...]

Parameters

The [key1 key2...] parameter specifies the name of one or more keys to generate.

Options

You can use the options listed in SSH_KEYGEN Command Options with the SSH_KEYGEN command.

Table 4 SSH_KEYGEN Command Options
Options Description

-b key-number
Number of the key, in bits. The default is 2048.

-t key-algorithm
Specifies the algorithm used to generate the keys. Specify either DSA or RSA.

-c comment-string
Specifies the key's comment string.

-e file
Edits the comment/passphrase of the key.

-p passphrase
Specifies the passphrase used to protect the key.

-P
Specifies that the key will be saved with an empty passphrase.

-h | -?
Displays a short summary of SSH_KEYGEN options.

-q
Hides the progress indicator.

-D file
Derives the public key from the private key file.

-1
Converts an SSH1 key.

- i file
Loads and displays information on a file.

-B number
The number base for displaying key information. The default is 10.

-V
Displays the version string and exits.

-r file
Randomizes data from a file to a random pool.

-F file
Dumps the fingerprint (a unique identifier) of the key file.

**Table 4** **SSH_KEYGEN Command Options**
Options	Description
-b key-number	Number of the key, in bits. The default is 2048.
-t key-algorithm	Specifies the algorithm used to generate the keys. Specify either DSA or RSA.
-c comment-string	Specifies the key's comment string.
-e file	Edits the comment/passphrase of the key.
-p passphrase	Specifies the passphrase used to protect the key.
-P	Specifies that the key will be saved with an empty passphrase.
-h \| -?	Displays a short summary of SSH_KEYGEN options.
-q	Hides the progress indicator.
-D file	Derives the public key from the private key file.
-1	Converts an SSH1 key.
- i file	Loads and displays information on a file.
-B number	The number base for displaying key information. The default is 10.
-V	Displays the version string and exits.
-r file	Randomizes data from a file to a random pool.
-F file	Dumps the fingerprint (a unique identifier) of the key file.

Remote Login and Command Execution with the SSH Command

Using the SSH_ADD Utility