You have an RSA private key as a result of the public and private key self-generated key pair; This tutorial will not convert on how to generate a pair of public and private keys. Because PuTTY doesn’t understand the idrsa private key we need to convert the private key to a putty client format in.ppk. First, you need to download this. You have an RSA private key as a result of the public and private key self-generated key pair This tutorial will not convert on how to generate a pair of public and private keys. Because PuTTY doesn’t understand the idrsa private key we need to convert the private key to a putty client format in.ppk First. As far as I know.pfx files are not required to contain both public and private key. However, I could not find a way how to create a file that contains only one of them. Generating Your SSH Public Key. Many Git servers authenticate using SSH public keys. In order to provide a public key, each user in your system must generate one if they don’t already have one. This process is similar across all operating systems. First, you should check to make sure you don’t already have a key. Press generate and follow instructions to generate (public/private) key pair. Create a new 'authorizedkeys' file (with Notepad): Copy your public key data from the 'Public key for pasting into OpenSSH authorizedkeys file' section of the PuTTY Key Generator, and paste the key data to the 'authorizedkeys' file. To install the public key, Log into the server, edit the authorizedkeys file with your favorite editor, and cut-and-paste the public key output by the above command to the authorizedkeys file. Save the file. Configure PuTTY to use your private key file (here keyfile.ppk). Then test if login works. See configuring public key authentication for.

• Generate Ppk From Rsa
• Get Public Key From Ppk File

• 1SFTP using SSH2: Key based authentication
  • 1.2Using ssh key with putty's ssh agent

SFTP using SSH2: Key based authentication

There are three mechanisms for use of the FileZilla client with SSH2 keys.

1. In the profile settings in the Site Manager of the FileZilla client. If the SFTP Protocol is specified, it is possible to specify the Logon Type as 'Key File' and specify the location of the private key file (in putty's .ppk or openssh's .pem format) The user is prompted for the key file's password if necessary, which may optionally be cached by Filezilla until it is next shut down.
2. In the Edit - Settings menu of the FileZilla client, you can [Add key file..] under Connection - SFTP, and FileZilla can then use the public key authentication in the site manager with the 'Interactive' Logontype on connection. Note: Importing a site's public key is not supported.
3. (Windows only) Using the excellent PuTTY tools. To allow the use of RSA / DSA key files with Filezilla, you'll need to download two more tools from PuTTY: Pageant and (assuming your key file isn't already in PPK format) PuTTYgen.

generate ssh key

Filezilla can use existing ssh key, but cannot generate ssh key itself.you can generate ssh key with putty or openssh. (now openssh is built-in in windows.)

• putty: use GUI program PuTTYgen to generate ssh key.
• openssh: open cmd.exe or powershell, type command ssh-keygen -t rsa -b 2048 -f my-ssh-key will generate private key my-ssh-key and public key my-ssh-key.pub .

after generate new key, you need to add the public key to the file ~/.ssh/authorized_keys ,or concact the system admin, then you can login with private key.

Using ssh key with putty's ssh agent

If your key file is already in PuTTY's PPK format you can skip this paragraph. However if your key is in OpenSSH format, you first need to convert it to PuTTY's PPK format. To do this, launch PuTTYgen and from the 'Conversions' menu, select the 'Import key' option. Select your key and follow the prompts to enter your pass phrase. Save your private key.

Now run Pageant. In your system tray, you'll see the Pageant icon appear. Right-click the icon and select 'Add Key' and select your private key (PPK) file. Follow the prompt to enter your pass phrase and you're done.

Now simply launch FileZilla and connect to your server using SFTP using SSH2 with a username and an empty password. Don't forget to close pageant when you're done.

This also works with the portable versions of FileZilla and PuTTY tools.

Alternative Method

FileZilla supports the standard SSH agents. If your SSH agent is running, the SSH_AUTH_SOCK environment variable should be set. (Note, the 'Normal' logon type should be set for the server in order to use the SSH agent socket.)

On a Mac

If for some reason you are not using ssh-agent and on a Mac, don't worry about ssh key conversion. Just import your key via Settings and then use Normal mode in your site connection definition. The imported key will get used.

The following instructions assume you have a working SSH configuration which allows you to ssh to the same host without a password. They are adapted from a thread on superuser.com and summarized here so you don't have to search through a lot of dead ends:

1. In FileZilla->Settings. select Connection->SFTP
2. Press the Add key file.. button
3. Press Command-Shift-G to bring up a path selection window and type '~/.ssh'
4. Select the 'id_rsa' key file and click Open (this imports the key)
5. Click OK to close the Settings dialog
6. Open File->Site Manager..
7. Select the site with which you want to use the key
8. Choose Protocol 'SFTP' and select Logon Type 'Normal'. Don't worry about a password if you key file doesn't have a password
9. Click Connect and you'll see your files

PuTTYgen, part of the open source network networking client PuTTY, is a crucial generating tool to create public and private SSH keys for servers. The native file format of PuTTY is .ppk files. Additionally, the tool is used for SSH connectivity. So users can use PuTTY to connect and securely transfer data from localhost to remote system.

But to use PuTTY, the private keys must be in the native format of the application. So for example, as Amazon Elastic Compute Cloud (EC2), a core part of the cloud-computing platform, generates Privacy-Enhanced Mail (PEM) file format, a user must first convert the file to .ppk file format before connecting to Linux Instance (virtual server on Amazon Web Services) from a Windows machine.

The EC2 allows users to lease virtual systems so that they can run their applications on it.

However if one plans to use PuTTY’s SSH client to connect, then they are first required to convert the .pem file to .ppk using PuTTYgen and then use PuTTY application to join local and remote hosts.

• 4 Converting .Pem to .Ppk on Unix or Linux

What Is the .Pem File Format?

Privacy-Enhanced Mail (PEM) file extension is a format that is mainly used to transmit data, certificates, email and cryptographic keys privately. The PEM file format is a tamperproof and secure way of storing and transferring data.

As a ‘.pem file’ can store multiple types of data; it represents data with appropriate suffix. While the most common is .pem suffix, others include .key for private keys and .cer or .crt for certificates. The PEM file format encodes it with the binary-to-text encoding scheme – base64 so that it represents binary data in ASCII string.

Even though the technological advancements have led to a more secure alternative to PEM container, it is still leveraged to store public and private certificates, root certificates and many others.

Unlike most file formats that are easy to convert via online conversion tools, a user requires a specific application to convert files that have .pem extensions. PuTTYgen is one such application that quickly converts f .pem files to .ppk.

Convert .Pem to .Ppk using PuTTYgen

The primary requisite is to download and install PuTTY application. As part of the networking client, PuTTYgen does not have to be downloaded separately. Users must download the latest version of the app and install the entire suite. Once installed, PuTTYgen will be ready to convert .pem files to .ppk format. We will provide detail steps to convert files on both operating systems – Windows and Unix.

Converting .Pem to .Ppk on Windows

1. Click on Start menu> All Programs > PuTTY > PuTTYgen.
2. The following window will present with options on the crucial a user wants to generate. Select the option ‘RSA (Rivest–Shamir–Adleman). RSA is a public-key cryptosystem that is commonly used to transmit data securely. Users with an older version of PuTTY should select the option – ‘SSH-2 RSA.’
3. Next, click on the option ‘Load.’ As PuTTY supports its native file format, it will only show files that have .ppk file extension. Therefore, users have to choose the ‘All Files’ option from the drop-down bar. It will display all key files included the .pem file.
4. Now, select the .pem file that you want to convert. As aforementioned that PuTTYgen is used for SSH connectivity, so it crucial for users to select the specific file that they plan to convert and click ‘Open.’ To confirm, click on ‘OK.’
5. In the resultant window, click on ‘Save private key’ which will convert and save the key file in PuTTY compatible format.
6. PuTTYgen will prompt a warning of saving the key without a passphrase. Hit ‘Yes’ on it.
7. Now, give the name to your file and PuTTYgen will automatically add .ppk file extension.

Note – Passphrases provide extra protection, but it sometimes gets annoying as each time a user copies files they have to enter the passphrase. Although, it entirely depends on the user if they wish or don’t wish to add the extra layer of protection

Once the file is converted to PuTTY compatible format, users can connect their local machine with remote servers.

Converting .Pem to .Ppk on Unix or Linux

To convert the file on Unix is far simpler than Windows. Users are first required to install PuTTY application on their Unix machines. Once done, all a user must do is enter a one-line command. First, run the PuTTYgen command and type the below-written command:

$ sudo puttygen pemKey.pem -o ppkKey.ppk -O private

Voila! The .pem files will quickly be converted to PuTTY native file format. Users can connect via PuTTY to remote servers from local systems using the newly created .ppk files on both Windows and Unix.

Connect Using PuTTY

Once the .pem file is converted .ppk then users can connect to remote hosts using PuTTY’s SSH client. Below are steps to launch a PuTTY session.

1. First, open PuTTY and input the host IP address. Please note that an SSL VPN connection must be established if the connection is to with 10.X private address.
2. Now, from the category pane, navigate to Connection and expand SSH and the Auth.
3. Click on ‘Browse’ and select the newly converted .ppk file, that was generated using PuTTYgen.
4. Now to commence the PuTTY session, choose the option ‘open.’

Note: If the remote and local hosts connect for the first time using PuTTY then the application will pop up a dialog box confirming the authenticity of the connection. It just provides an added layer of security, so click ‘Yes’ when it appears.

Transferring Files Using PuTTY

Interestingly, one can also use PuTTY applications another component the PuTTY Secure Copy client (PSCP) to transfer files to remote servers. The PSCP is a Secure copy protocol (SCP) client that enables secure transfer of files from localhost to remote hosts.

If users are not comfortable using the command-line tool they can choose another Graphic user interface-based SCP client. One of the notable is WinSCP – an open-source multi-protocol supportive application for Microsoft Windows.

Generate Ppk From Rsa

Back to PSCP, users are required to use the private key they generated while converting the .pem file to the .ppk file.

Get Public Key From Ppk File

Converting a .pem file to a .ppk using PuTTYgen may now seem simple. The above information also briefs users on using PuTTY’s SSH client to connect virtual servers with local machines.