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Convert Your Private Key Using PuTTYgen. PuTTY does not natively support the private key format for SSH keys. PuTTY provides a tool named PuTTYgen, which converts keys to the required format for PuTTY. PuTTY doesn't natively support the private key format (.pem) generated by Amazon EC2. You must convert your private key into a.ppk file before you can connect to your instance using PuTTY. You can use the PuTTYgen tool for this conversion. This tool, available for both Windows and Unix operating system, can convert keys. To use the system command-line interface, you must generate a Secure Shell (SSH) key pair using PuTTY. Generating an SSH key pair using PuTTY To use the system command-line interface, you must generate a Secure Shell (SSH) key pair using PuTTY. Under Actions / Generate a public/private key pair, click Generate. You will be instructed to move the mouse cursor around within the PuTTY Key Generator window as a randomizer to generate the private key. Once the key information appears, click Save private key under Actions / Save the generated key. Save the private key to the desktop as id.
PuTTYgen is a tool used for generating public and private SSH keys which are its fundamental function. Though it collects keys in its own file format i.e. .ppk files, keys can also be transformed to any other file format quickly. It is available for the various operating system, i.e. Windows, Linux, Mac, etc. PuTTYgen.exe is the graphical tool on Windows OS. While on the other side, Linux OS has the only command-line version.
Contents
PuTTYgen is used to generate public or private key pair for creating SSH keys. Below is the complete guidance about how to generate RSA key in Windows operating system:
Various Ways to Use RSA Key Pair
RSA key pair generated through PuTTYgen is used in two various ways defined as below:
The installation of PuTTYgen is very simple as it is installed as a part of normal PuTTY .msi package installation. You can follow the simple steps to download PuTTYgen software for your system. That is the reason why you don’t need to download PuTTYgen separately. Once you download PuTTY software, you will be able to install and run PuTTYgen easily in no time. Below is the complete instruction about how to download and install PuTTY on Windows.
Download PuTTYgen on Windows
The very first requisite is to acquire the copy of PuTTY installation package. If your system is of 64-bit, then you should install a 64-bit version of PuTTY, i.e. putty-64bit-<version>-installer.msi. In case of a 32-bit operating system, you will need to install the 32-bit version of PuTTY, i.e. putty-<version>-installer.msi
Go to PuTTY Installation Download page, where you will find the download link of PuTTY installation package with the exhaustive details of its installation, setup instruction, verifying release signature, various alternatives, many more.
Once the PuTTY installation package is downloaded successfully, now it’s time to install it by starting the installer. Go to How to install PuTTY on Windows where you will find the step by step guidance for PuTTY installation for Windows operation system.
After successfully downloading and installing PuTTY on your Windows machine, you are just 2-3 clicks away to run PuTTYgen. Follow the below-given step by step guidance to run PuTTYgen:
Run PuTTYgen on Windows
1. Go to Windows -> Start Menu -> All Programs -> PuTTY -> PuTTYgen. You will see a window for PuTTY Key Generator on your screen.
That’s it. Now you can generate public or private key pair using PuTTYgen.
Download PuTTYgen for Mac
You can find the step by step guide to download PuTTYgen for Mac operating system. Command-line SSH client is a part of the Mac operating system. To utilize it, go to Finder and then opt for Go -> utilities from the top menu. After that find the terminal which supports SSH connections to remote servers.
Ported PuTTY for Mac
Mac has the port of PuTTY which can be installed in various ways described as below:
Download PuTTYgen for Linux
In order to download PuTTYgen for Linux (Ubuntu) operating system, one required to install PuTTYgen separate from the PuTTY client in case of some Linux distributions.
For example, Debian Linux requires the below-given code to install PuTTYgen:
sudo aptitude install putty-tools
Generate Key Pair for Authentication in Linux
Use the below command to create the key pair for authentication in Linux.
PuTTYgen -t RSA -b 2048 -C “user@host” -o keyfile.ppk
Various Command Line Options of PuTTY in Linux
Below is the list of important command line options for PuTTY in Linux operating system.
PuTTYgen [-t keytype [-b bits] [-q] | keyfile]
[-C new-comment] [-P] [-O output-type | -p | -l | -L] [-o output-file]
Options:
Puttygen Key Generation Utility![]()
Thus, above are the prominent commands of PuTTYgen in Linux operating system. There are many other commands also available to perform a various task from the command prompt in Linux at flank speed.
Generate RSA keys with SSH by using PuTTYgen
One effective way of securing SSH access to your cloud server is to usea public-private key pair. This means that a public key is placed onthe server and a private key is placed on your local workstation.Using a key pair makes it impossible for someone to log in by using justa password, as long as you set up SSH to deny password-basedauthentication.
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This article provides steps for generating RSA keys by using PuTTYgen onWindows for secure SSH authentication with OpenSSH. https://postgreat500.weebly.com/blog/office-2015-product-key-generator.
Generate keys
In Windows, use PuTTYgen to generate your public and private keys.
Use the key pair
You can use the RSA key pair in the following ways.
Specify your SSH key when creating a new cloud server
When you create a cloud server, you can assign a public key from the list of keys.If your key is not already in the list, you may add it, and then assign it.
Add a new public key to the list
Assign a public key
Assign your SSH Key to an existing cloud server
To make use of your newly generated RSA key pair, you must tell PuTTY touse it when connecting to your cloud server.
Generate A Key Pair From Putty To Stick
After you save your session, your key is loaded automatically when youconnect to your server.
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