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.
Generate RSA keys with SSH by using PuTTYgen
(C) Generate RSA Public/Private Key Pair and Export to PEM. C example code showing how to generate an RSA public/private key pair and export to PEM files. 2 days ago Generating public / private rsa key pair. Enter file in which to save the key (/ root /.ssh / idrsa): / root /.ssh / idrsa. Your identification has been saved in / root /.ssh / idrsa. Your public key has been saved in / root /.ssh / idrsa.pub. The key fingerprint is: SHA256:OCTRkuLi1TIRw62B1etc7+wjjCPvXCz3AywcU7X9Hzg root @ pkw4v3. RSA algorithm and key pairs¶ Since the invention of public-key cryptography, various systems have been devised to create the key pair. One of the first ones is RSA, the creation of three brilliant cryptographers, that dates back to 1977.
This article provides steps for generating RSA keys by using PuTTYgen onWindows for secure SSH authentication with OpenSSH.
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
Windows 7 enterprise 64 bit product key. 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.
After you save your session, your key is loaded automatically when youconnect to your server.
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How to Create a Public/Private Key Pair
The standard procedure for creating a Secure Shell public/private key pair follows. For information on additional options, see ssh-keygen(1).
C Generate Rsa Public Private Key Pair Chart
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