SSH Public Key authentication

To generate a key with PuTTY, you need to:

  1. Download and start the puttygen.exe generator.
  2. In the “Parameters” section, choose:
    • Type of key to generate「ED25519」
    • Type of key to generate「ECDSA」Curve to use for generating this key「nistp521」
    • Type of key to generate「RSA」Number of bits in a generated key「4096」

    and click “Generate”.

  3. Type in the passphrase and confirm it. The passphrase is used to protect your key. You will be asked for it when you connect via SSH.
  4. Click “Save private key” to save your private key.
  5. Click “Save public key” to save your public key.

To register your Public Key, you need to: