Code example for Subject

Methods: doAs, getPrincipals, getPrivateCredentials

0
        new FileOutputStream("krb5.conf").write(
                "[libdefaults]\nclockskew=999999999".getBytes());
        System.setProperty("java.security.krb5.conf", "krb5.conf");
        Config.refresh(); 
 
        Subject subj = new Subject();
        KerberosPrincipal kp = new KerberosPrincipal(princ);
        KerberosKey kk = new KerberosKey(
                kp, key, EncryptedData.ETYPE_AES128_CTS_HMAC_SHA1_96, 0);
        subj.getPrincipals().add(kp);
        subj.getPrivateCredentials().add(kk);
 
        Subject.doAs(subj, new PrivilegedExceptionAction() {
            public Object run() throws Exception {
                GSSManager man = GSSManager.getInstance();
                GSSContext ctxt = man.createContext(man.createCredential(
                        null, GSSCredential.INDEFINITE_LIFETIME, 
                        GSSUtil.GSS_KRB5_MECH_OID, GSSCredential.ACCEPT_ONLY)); 
                return ctxt.acceptSecContext(token, 0, token.length);
            } 
        });