Authenticate users using i5/OS (AS400) credentials

12-May-2008 | Tags: as/400, authentication, i5, ibm, java, password, Security
Posted in Security, Tips | No comments

The folks at IBM have a nice API to use i5/OS (AS400) stuff from Java code. Check it out at http://www-03.ibm.com/systems/i/software/toolbox/index.html.

What I particularly find very useful and have used often is to validate user names and passwords with the AS400 authentication services. The following code validates a userName and password.

import com.ibm.as400.access.AS400;
import com.ibm.as400.access.AS400SecurityException;
...
   String ip = "192.168.0.32";  // Place your AS400 IP address here
   String userName = "john"; // User name
   String password = "private"; // Password
   AS400 system = new AS400(ip, userName, password);
   if (system.validateSignon()){
      result = AUTH_OK;
   }
...