Java

Use PuTTY Key for SSH Tunnel (PPK Private Key)

See more SSH Tunnel Examples

Demonstrates how to authenticate with a username + .ppk PuTTY private key w/ SSH Tunnel. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.SshKey;
import com.chilkatsoft.chilkat2.SshTunnel;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        SshTunnel tunnel = new SshTunnel();

        // Load a .ppk PuTTY private key.
        SshKey puttyKey = new SshKey();
        String ppkText = puttyKey.loadText("qa_data/ppk/putty_private_secret.ppk");

        // The ppkText contains this content:

        //     PuTTY-User-Key-File-2: ssh-rsa
        //     Encryption: aes256-cbc
        //     Comment: rsa-key-20170126
        //     Public-Lines: 6
        //     AAAAB3NzaC1yc2EAAAABJQAAAQEAx+52s7vvaZ8rT2UdFZWlSUVDHDQ+5ZRFvgRW
        //     6nm2sO1c9WqNg7u2PQL4jeKSDX2XWcMnpleALz2x8Rr4rMy5E1iZzvWov8VtFd8l
        //     fa9HOkgEeJB3VFuYR3NlnD3eyCoYJYPVpHJHrIeui2WZs5vQ76HDe+th8+z5Ald4
        //     zPw3p2c6ZJpBrkSBM67hWokoBDi23c7NhszDHhJBrv+B98cQxnagI1PUKqN7E8Vg
        //     bNtBI8beIMHyI69up9G1AXSEi0cGIjYNx9RNUPau1mRk/SvfqxgWkAjM005lj7hc
        //     bOsjbdKK3T2NtrKTaYjEiXlEXcj1iGuApsD/m73pYaEJB3Nd7w==
        //     Private-Lines: 14
        //     MoaDbq0owouN/7Z9Pga0favDhM2bSEgMErJBxdDmNUXIVVcUoLiD/Ps1RA+BeBBX
        //     wxqKUt9PqLy/pnafPR/i2xjJiQtQ0CWkPxND16Gi1dqLzmbQYYl1ev4+LzuG0zNX
        //     HDGMvRiwagY7mY+F1tUjBYfOL6z8XHw4m40YcY1QorOO+0MMzAVT5Hkg8YyXW209
        //     B/V/LRADFMVA2BlL39y11cb5ZpFStPH/waYUMY+2w1ZmJZ7dcRoMjuKmY+YE/tUx
        //     n9X3P0qTNSbw6e6sMG3Dhr1vfoJUQWApUliD6GpUiCeIvXBcVqG8Vsfq9XADsPl0
        //     +nFAwjSZflywcB7/FwhGb7q5UmcJK06SzoMl7Og5e3g7NCs3yNNQIv+qCpDjhxrA
        //     hpT03mbipu7OXCZDeUwUhMGJAmYHE5iqm1rPCsSVbaMgpxhCWf01Cx4gLx3aMvn4
        //     MdylA31GuL3wSxcWTslrOI8+449lZN/qZEnGEZkYTrnlu123jTqsAWMMtuHSz2Ig
        //     6GA89oTdlppkNflhNH3OJ85kMUrc3p/ZBMdndz8jTDTljmJjHR5oNMoShFof115A
        //     nWjUHqBwCgcubLYyH3afDvBTOhtl0tJ9Oby0wJlOAGnCXiPSDbF/y7J7xml/PS9t
        //     XlSVNxtAY15NDO6Fp96sBVfKuJsfJ90PzdBom4ikIuf7sMwtElrHHLuYfcXJQYLp
        //     G5jBmqDgnirosVPEBIxlxFzz/HCRmdU+tsYg46gqI4R5UpKUe8WSaJoZkDGsrqhm
        //     e+1SJaBuafR4v2bx/bV414Hg7LGQosK2S3crxH4UgZl+g02vWznZfBH+9CmHvKDR
        //     AxfcKOTzsaILKJtQPV81lmJ45sARYMcB5jMiE4kBg56hiXouChsvKkm55WVcW1E+
        //     Private-MAC: 17512c9f7582c1d9c3ae2b01b4d67a6b1dbd1d0e

        // "secret" is the actual password for the above PPK.
        puttyKey.setPassword("secret");
        try {
            puttyKey.fromPuttyPrivateKey(ppkText);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        String sshHostname = "sftp.example.com";
        int sshPort = 22;

        // Connect to an SSH server
        try {
            tunnel.connect(sshHostname, sshPort);

            // Authenticate with the SSH server using a username + private key.
            // (The private key serves as the password.  The username identifies
            // the SSH user account on the server.)
            tunnel.authenticatePk("mySshLogin", puttyKey);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("OK, the connection and authentication with the SSH server is completed.");

        // This example is only to show the connection + authentication using a PuTTY private key...
    }
}