When a passphrase is set, it needs to be typed each time the private key is used. Otherwise, when generating a key for automation, it may be set without a passphrase.Ī passphrase adds an extra layer of security by protecting the private key from unauthorized use. It is recommended to use a passphrase when the private key files are intended for interactive use.
If you don’t want to use a passphrase leave the fields blank. If you want set a passphrase, type it in the “Key passphrase” field and confirm the same passphrase in the “Confirm passphrase” field. Once the public key is generated it will be displayed in the “Key” block. As you move the pointer, the green progress bar will advance. You will be asked to move your mouse over the blank area of the Key section to generate some randomness. Optionally, you can change it to 4096.Ĭlick the “Generate” button to start the process of generating the new key pair. In the “Number of bits in a generated key” field leave the default value 2048, which is sufficient for most use cases. In the “Type of key to generate” block leave the default RSA. Launch PuTTYgen by double-clicking on its “.exe” file or by going to the Windows Start menu → PuTTY (64-bit) → PuTTYgen. To generate an SSH key pair on Windows using PuTTYgen, perform the following steps: The installation is simple, double-click on the installation package and follow the instructions. If you don’t have PuTTYgen installed, head over to the PuTTY download pageĪnd download the PuTTY installation package. PuTTYgen is available as a standalone executable file, and it is also a part of the PuTTY. PuTTYgen is an open-source utility that allows you to generate SSH keys for the most popular Windows SSH client PuTTY
We will also show you how to set up an SSH key-based authentication and connect to your remote Linux servers without entering a password. This tutorial explains how to generate SSH keys on Windows with PuTTYgen. Using SSH keys is more secure and convenient than traditional password authentication. The two most popular mechanisms are passwords based authentication and public key-based authentication. How to create SSH Keys in Ubuntu / Linux ?
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