Java

SFTP Authenticate Secure

Demonstrates how to do SFTP password authentication with secure strings.

This example requires Chilkat v9.5.0.71 or greater.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Crypt2;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.SFtp;
import com.chilkatsoft.chilkat2.SecureString;

public class ChilkatExample {

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

        // Imagine we've previously saved our encrypted login and password within a JSON config file
        // that contains this:

        // {
        //   "ssh_login": "2+qylFfC56Ck7OQQt/U2/w==",
        //   "ssh_password": "5neIq9Jmn0E3p71N6Yc8TA=="
        // }

        JsonObject json = new JsonObject();
        json.loadFile("qa_data/passwords/ssh.json");

        Crypt2 crypt = new Crypt2();

        // These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
        crypt.setCryptAlgorithm("aes");
        crypt.setCipherMode("cbc");
        crypt.setKeyLength(128);
        crypt.setEncodedKey("000102030405060708090A0B0C0D0E0F", "hex");
        crypt.setEncodedIV("000102030405060708090A0B0C0D0E0F", "hex");
        crypt.setEncodingMode("base64");

        SecureString ssLogin = new SecureString();
        SecureString ssPassword = new SecureString();

        // Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
        // a randomly generated session key.)
        crypt.decryptSecureENC(json.stringOf("ssh_login"), ssLogin);
        crypt.decryptSecureENC(json.stringOf("ssh_password"), ssPassword);

        SFtp sftp = new SFtp();

        try {
            sftp.connect("MY-SSH-SERVER-DOMAIN-OR-IP", 22);

            // Authenticate using secure strings
            sftp.authenticateSecPw(ssLogin, ssPassword);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("SFTP Authentication successful.");

        sftp.disconnect();
    }
}