Ssh provides secure access to the remote system. The traffic between systems are encrypted using encryption algorithms. There are different encryption algorithms. RSA
is the most popular asymmetric encryption algorithm. In this tutorial we will look how to create RSA keys with ssh-keygen
If you don't find any existing SSH key, then you need to create a new SSH key. Generating New SSH Key. You can generate a new SSH key for authentication using the following command in Git Bash − $ ssh-keygen -t rsa -C 'youremail@mail.com' If you already have a SSH key, then don't a generate new key, as they will be overwritten. From Tools, select Create or Import SSH Keys. From the PuTTY Key Generator dialog, click the Generate button. As the SSH key generates, hover your mouse over the blank area in the dialog. It may take a minute or two. PuTTY Key Generator - a program to generate ssh private and public keys (download here) PuTTY (available here) FileZilla (available here) Steps. Open up PuTTY Key Generator, click 'Generate,' and follow the on-screen instructions; Once the key is generated, you will need to save the public key. If the system lists a file, it has an SSH key pair. To continue using this key pair, skip ahead to Step 3. Alternately, back up this key pair, then proceed to generate a new SSH key pair. Step 2: Create an SSH Key Pair. This step creates a public and private SSH key. In the terminal, enter the following command: ssh-keygen.
RSA algorithm is created by researchers named Ron Rivest, Adi Shamir and Leonard Adleman in the MIT. And named with their names first letters. It is asymmetric or public encryption algorithm provides a lot of flexibility. We can generate different size of keys with RSA. RSA is used to make secure SSH, OpenGP, S/MIME, SSL/TLS etc.
Generate An Ssh Keypair
Actually ssh-keygen
will create RSA keys by default. So we do not have to specify the algorithm but in order to be sure and provide information we can explicitly specify the RSA key creation. We will use -t
option in order to specify the RSA algorithm. Free download myanmar typing tutor.
By default RSA key is generated into user home directory ~/.ssh/id_rsa
. We can change this default directory during the generation or by providing the path as parameter. We will use -f
option in order to change path and file name. We will create key named test
in to the current working directory.
Generate An Ssh Key Pair Linux
There will be two files named;
Ssh Key Setup
test
is the private keytest.pub
is the public key