Generate A Public Key Using A Private Key
Posted By admin On 12.12.20To sign an assembly with a strong name, you must have a public/private key pair. This public and private cryptographic key pair is used during compilation to create a strong-named assembly. You can create a key pair using the Strong Name tool (Sn.exe). Key pair files usually have an.snk extension. The public key is used to encrypt data. The private key however is private. It is only ever stored on user’s device. The private key is used to decrypt data. Public key is used to convert the message to an unreadable form. Private key is used to convert the received message back to the original message. /far-cry-2-cd-key-generator-chomikuj.html.
Lets say you have a private/public key pair that you use to login to your server via SSH and you lose the public key, either it was deleted or corrupt and you don’t want to have to regenerate a new pair what options do you have? /download-abbyy-finereader-11-key-generator.html. In this post I will demonstrate how to regenerate a public key from the corresponding private key that you still have.
Generate public key and store into a file
It is a simple one liner command to generate a public key from a private key, so lets say our private key is named ‘user@myserver.key’ and we want to generate the public key and name it ‘authorized_keys’. Below is the command to do this.
generate public private key windows
user@workstation:~$ssh-keygen-y-fuser@myserver.key>authorized_keys |
command breakdown:
‘ssh-keygen -y’ : tells the prorgram ssh-keygen to output a public key
‘-f user@myserver.key’: references the key file user@myserver.key to generate the public key from
‘> authorized_keys’: instead of printing the output to the console redirect the output (public key) to a file named ‘authorized_keys’
copy public key to your server
now we will need to take our authorized_keys file and store it on the server, if we can currently login via ssh to our server we can use rsync over ssh to securely copy the public key to the server, although this key is displayed to anyone who attempts to login to your server it is smart to use ssh or another secure method to copy it up to the server to ensure that the key is not tampered with while it is being transmitted.
below is an example using rsync to copy the authorized keys file to its destination on the server and removing it from your local computer.