Node.js

Convert PuTTY Private Key (ppk) to OpenSSH (pem)

See more SSH Key Examples

Convert a PuTTY format private key file (.ppk) to OpenSSH (.pem). Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var key = new chilkat.SshKey();

    // Load an unencrypted or encrypted PuTTY private key.

    // If  your PuTTY private key is encrypted, set the Password
    // property before calling FromPuttyPrivateKey.
    // If your PuTTY private key is not encrypted, it makes no diffference
    // if Password is set or not set.
    key.Password = "secret";

    // First load the .ppk file into a string:
    var keyStr;
    keyStr = key.LoadText("putty_private_key.ppk");

    // Import into the SSH key object:
    success = key.FromPuttyPrivateKey(keyStr);
    if (success !== true) {
        console.log(key.LastErrorText);
        return;
    }

    // Convert to an encrypted or unencrypted OpenSSH key.

    // First demonstrate converting to an unencrypted OpenSSH key
    var unencryptedKeyStr;
    var bEncrypt = false;
    unencryptedKeyStr = key.ToOpenSshPrivateKey(bEncrypt);
    success = key.SaveText(unencryptedKeyStr,"unencrypted_openssh.pem");
    if (success !== true) {
        console.log(key.LastErrorText);
        return;
    }

    // Save to an encrypted OpenSSH PEM file:
    var encryptedKeyStr;
    bEncrypt = true;
    key.Password = "myPassword";
    encryptedKeyStr = key.ToOpenSshPrivateKey(bEncrypt);
    success = key.SaveText(encryptedKeyStr,"encrypted_openssh.pem");
    if (success !== true) {
        console.log(key.LastErrorText);
        return;
    }

    console.log("Done!");

}

chilkatExample();