SSH Key Pair
An SSH (Secure Shell) key pair is used for identity authentication and encrypted communication, consisting of a public key and a private key. The public key can be used to encrypt messages that only the private key can decrypt. This property is employed as a way of authenticating using the key pair. Your SSH key pair contains several public keys that can be placed on your server to access it securely.
Supported Formats
SSH keys are typically stored in the ~/.ssh/ directory.
Format
Start With
Minimum Length
RSA
ssh-rsa
2048 bits
ED25519
ssh-ed25519
256 bits
ECDSA
ecdsa-sha2-nistp
256 bits
Example
Here we take RSA format as an example.
Public key
Private key
Limit
You can add up to 5 public SSH keys to create an SSH key pair.
Last updated