Putty With Puttygen And - Fujitsu Siemens Computers SX series User Manual

Remote operation via PC
6.4.3 PuTTY with PuTTYgen and Pageant
This section describes the generation of key pairs and the distribution of the public keys
using PuTTY
Unix System-based platforms and is useful in dialog mode.
Key generator PuTTYgen
The key generator PuTTYgen
used with PuTTY, PSCP, and Plink, and also with PuTTY's authentication agent Pageant.
The general procedure for generating a new key pair using PuTTYgen is as follows:
First you must define the type of key (RSA for SSH Version 1 or 2, or DSA for SSH
Version 2) and its length.
Then you must click on the Generate button to generate the key.
The Key fingerprint box shows the fingerprint value, a brief description of the generated
key.
A pass phrase can be selected using the Key passphrase and Confirm passphrase boxes.
If these fields ar left empty the private key is stored in the file unencrypted. This should
not be done without good reason.
To save the private key to disk click on the Save private key button and PuTTYgen will
open a dialog box which is used to query where the information is stored. Select a
directory and a file name and click on Save. The file will be stored in the format used by
PuTTY (file extension .ppk).
The public key need not be stored locally on disk; it can also be copied directly onto
PuTTY sessions which run on the remote server. For this purpose the you create a
connection to these servers using PuTTY. Afterward you must switch to the directory
$HOME/.ssh and open the authorized_keys file with an editor (if no public key exists
there, the file must be generated). Then switch to the PuTTYgen window, select the
entire text in the box Public key for pasting into authorized_keys file, and copy it to the
clipboard. Go back to the PuTTY window and enter the data in the opened file. You must
ensure that all data is contained in one line. Save the file.
1.
See http://www.chiark.greenend.org.uk/~sgtatham/putty
2.
See http://the.earth.li/~sgtatham/putty/latest/htmldoc/Chapter8.html
U41272-J-Z385-3-76
1
. PuTTY is a free implementation of Telnet and Secure Shell for Win32 and
2
generates pairs of private and public keys which can be
Key management for Secure Shell
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