Jul 26, 2018.
PuTTYgen is a key generator tool for creating pairs of public and private SSH keys. It is one of the components of the open-source networking client PuTTY. Although originally written for Microsoft Windows operating system, it is now officially available for multiple operating systems including macOS, Linux. PuTTYgen.exe is the graphical tool on Windows OS. While on the other side, Linux OS has the only command-line version could be accessible using SSH commands.
Puttygen aka Putty Key Generator
The key generation utility – PuTTYgen can create various public-key cryptosystems including Rivest–Shamir–Adleman (RSA), Digital Signature Algorithm (DSA), Elliptic Curve Digital Signature Algorithm (ECDSA), and Edwards-curve Digital Signature Algorithm (EdDSA) keys.
The aforementioned public-key cryptosystems principally focus on secure data transmission and digital signatures.
Although PuTTYgen collects keys in its native file format i.e. .ppk files, the keys can easily be converted to any file format. For Windows, the software interface is PuTTYgen.exe, whereas, for Linux OS the command-line adaptation is available using SSH commands.
How to use PuTTYgen?
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 the 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:
PuTTYgen being a component of the terminal emulator PuTTY does not have to be downloaded separately, hence, comes with the PuTTY .msi installation package. 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.
Apart from that, it is also integrated into third-party programs such as WinSCP installation package. Below you can find a complete PuTTYgen download and installation guide for all operating systems.
Download PuTTYgen on Windows
To download PuTTYgen the primary requisite is to acquire the copy of PuTTY installation package. For the 64-bit operating system, one must install the 64-bit version of PuTTY, i.e. putty-64bit-<version>-installer.msi.Similarly, for the 32-bit operating system, the respective 32-bit version of PuTTY, i.e. putty-<version>-installer.msi needs to be installed.
To get PuTTY, go to PuTTY Installation Download page, whereby the complete installation package will be available with setup instructions, installation guide, and download links to all other components of PuTTY such as putty.exe, pscp.exe, psftp.exe, puttytel.exe, plink.exe, pageant.exe and putty.zip.
Following the successful download of the PuTTY installation package. It is time to install the program. Go to How to install PuTTY on Windows, whereby you will find the step by step guidance for PuTTY installation for Windows operating 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
To run PuTTYgen, Go to Windows -> Start Menu -> All Programs -> PuTTY -> PuTTYgen. You will see a window for the PuTTY Key Generator on your screen.
Voila! Now you can generate public or private key pair using PuTTYgen.
Download PuTTYgen for Mac
Below is the detailed guide to download PuTTYgen on Mac operating system. Mac OS has a built-in command-line SSH client known as Terminal. 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.
However, to run PuTTYgen for mac, the first one must have to install PuTTY. There are multiple ways to install PuTTY, which are Homebrew or MacPorts. Both alternatives will also install the command-line of adaptations of PuTTYgen.
Ported PuTTY for Mac
Mac has the port of PuTTY which can be installed in various ways described as below:
However, there is an alternative way to install PuTTY on Mac OS. Cyberduck is a widely used Mac OS SSH Client. Once PuTTY installed on the Mac OS, a user can convert PuTTY derived private key format to OpenSSH.
To convert the private key to standard PEM format, type the following command –
puttygen privatekey.ppk -O private-openssh -o privatekey.pem
You can also read the guide to convert .pem file to .ppk using puttygen.
Download PuTTYgen for Ubuntu/Linux
To download PuTTYgen for Ubuntu (Linux) operating system, a user to first install PuTTY. However, in some Linux distributions, the SSH key generation tool – PuTTYgen needs to be installed independently from the PuTTY client.
For example, Debian Linux requires the below-given code to install PuTTYgen:
sudo apt install putty-tools
Generate Key Pair for Authentication in Linux
To create the key pair for authentication in Linux use the below command:-
puttygen -t rsa -b 2048 -C 'user@host' -o keyfile.ppk
Various Command Line Options of PuTTY in Linux
Below are few important command line options in the Linux operating system for PuTTY:
PuTTYgen [-t keytype [-b bits] [-q] | keyfile]
[-C new-comment] [-P] [-O output-type | -p | -l | -L] [-o output-file]
Options:
Thus, above are the prominent commands of PuTTYgen in Linux operating system. Besides that, there are many other commands available to perform various tasks from the command prompt in Linux at flank speed.
Types of Keys Supported on PuTTYgen
It is important to know the types of key PuTTYgen supports prior to using it. Below are the key types that it currently supports for SSH-2 and SSH-1 protocol:-
The above description is a detailed brief on downloading and running PuTTYgen on all major operating systems. For further details please check the Download PuTTY page.
Home |FAQ |Feedback |Licence |Updates |Mirrors |Keys |Links |Team
This page contains download links for the latest released version ofPuTTY.Currently this is 0.74, released on 2020-06-27.
When new releases come out, this page will update to contain thelatest, so this is a good page to bookmark or link to.Alternatively, here is apermanent link to the 0.74 release.
Release versions of PuTTY are versions we think are reasonably likelyto work well. However, they are often not the most up-to-dateversion of the code available. If you have a problem with thisrelease, then it might be worth trying outthe development snapshots,to see if the problem has already been fixed in those versions.
Package files
You probably want one of these. They include versions of all thePuTTY utilities.
(Not sure whether you want the 32-bit or the 64-bit version? Read theFAQ entry.)
32-bit:
putty-0.74-installer.msi (or by FTP)(signature)
64-bit:
putty-64bit-0.74-installer.msi (or by FTP)(signature)
.tar.gz :putty-0.74.tar.gz (or by FTP)(signature)
Alternative binary files
The installer packages above will provide versions of all of these(except PuTTYtel), but you can download standalone binaries oneby one if you prefer.
(Not sure whether you want the 32-bit or the 64-bit version? Read theFAQ entry.)
32-bit:
putty.exe (or by FTP)(signature)
pscp.exe (an SCP client, i.e. command-line secure file copy)
64-bit:
pscp.exe (or by FTP)(signature)
psftp.exe (an SFTP client, i.e. general file transfer sessions much like FTP)
64-bit:
psftp.exe (or by FTP)(signature)
32-bit:
puttytel.exe (or by FTP)(signature)
plink.exe (a command-line interface to the PuTTY back ends)
64-bit:
plink.exe (or by FTP)(signature)
pageant.exe (an SSH authentication agent for PuTTY, PSCP, PSFTP, and Plink)
64-bit:
pageant.exe (or by FTP)(signature)
puttygen.exe (a RSA and DSA key generation utility)
64-bit:
puttygen.exe (or by FTP)(signature)
32-bit:
putty.zip (or by FTP)(signature)
Documentation
HTML:Contents page
Zipped HTML:
puttydoc.zip (or by FTP)
Windows HTML Help:
putty.chm (or by FTP)
Source code.tar.gz :putty-0.74.tar.gz (or by FTP)(signature)
.zip :putty-src.zip (or by FTP)(signature)
Clone:
https://git.tartarus.org/simon/putty.git
Downloads for Windows on Arm
Compiled executable files for Windows on Arm. These are believed towork, but as yet, they have had minimal testing.
64-bit Arm:
putty-arm64-0.74-installer.msi (or by FTP)(signature)
32-bit Arm:
putty-arm32-0.74-installer.msi (or by FTP)(signature)
64-bit Arm:
putty.exe (or by FTP)(signature)
64-bit Arm:
psftp.exe (or by FTP)(signature)
64-bit Arm:
plink.exe (or by FTP)(signature)
64-bit Arm:
puttygen.exe (or by FTP)(signature)
32-bit Arm:
pscp.exe (or by FTP)(signature)
32-bit Arm:
puttytel.exe (or by FTP)(signature)
32-bit Arm:
pageant.exe (or by FTP)(signature)
Putty For Mac
Zip file of all Windows on Arm executables
32-bit Arm:
putty.zip (or by FTP)(signature)
Checksum filesDownload Putty For Win 10
MD5:
md5sums (or by FTP)(signature)
SHA-256: If you want to comment on this web site, see theFeedback page.sha256sums (or by FTP)(signature)
Putty For Mac Free Download(last modified on Sat Jun 27 08:28:13 2020)Comments are closed.
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