util-testing/club/wpia/gigi/util/SimpleSigner.java

   1 package club.wpia.gigi.util;
   2
   3 import java.io.ByteArrayInputStream;
   4 import java.io.File;
   5 import java.io.FileInputStream;
   6 import java.io.FileNotFoundException;
   7 import java.io.FileOutputStream;
   8 import java.io.IOException;
   9 import java.io.InputStream;
  10 import java.io.InputStreamReader;
  11 import java.io.PrintWriter;
  12 import java.io.Reader;
  13 import java.math.BigInteger;
  14 import java.nio.file.Paths;
  15 import java.security.GeneralSecurityException;
  16 import java.security.KeyFactory;
  17 import java.security.NoSuchAlgorithmException;
  18 import java.security.PrivateKey;
  19 import java.security.PublicKey;
  20 import java.security.Signature;
  21 import java.security.cert.CertificateFactory;
  22 import java.security.cert.X509Certificate;
  23 import java.security.spec.InvalidKeySpecException;
  24 import java.security.spec.PKCS8EncodedKeySpec;
  25 import java.sql.SQLException;
  26 import java.sql.Timestamp;
  27 import java.text.ParseException;
  28 import java.text.SimpleDateFormat;
  29 import java.util.Base64;
  30 import java.util.Calendar;
  31 import java.util.Date;
  32 import java.util.GregorianCalendar;
  33 import java.util.HashMap;
  34 import java.util.LinkedList;
  35 import java.util.List;
  36 import java.util.Map;
  37 import java.util.Map.Entry;
  38 import java.util.Properties;
  39 import java.util.TimeZone;
  40
  41 import javax.security.auth.x500.X500Principal;
  42
  43 import club.wpia.gigi.GigiApiException;
  44 import club.wpia.gigi.crypto.SPKAC;
  45 import club.wpia.gigi.database.DatabaseConnection;
  46 import club.wpia.gigi.database.DatabaseConnection.Link;
  47 import club.wpia.gigi.database.GigiPreparedStatement;
  48 import club.wpia.gigi.database.GigiResultSet;
  49 import club.wpia.gigi.dbObjects.Certificate;
  50 import club.wpia.gigi.dbObjects.Certificate.AttachmentType;
  51 import club.wpia.gigi.dbObjects.Certificate.CSRType;
  52 import club.wpia.gigi.dbObjects.Certificate.SANType;
  53 import club.wpia.gigi.dbObjects.Certificate.SubjectAlternateName;
  54 import club.wpia.gigi.dbObjects.CertificateProfile;
  55 import club.wpia.gigi.dbObjects.Digest;
  56 import club.wpia.gigi.output.DateSelector;
  57 import club.wpia.gigi.util.ServerConstants.Host;
  58 import sun.security.pkcs10.PKCS10;
  59 import sun.security.util.DerOutputStream;
  60 import sun.security.util.DerValue;
  61 import sun.security.util.ObjectIdentifier;
  62 import sun.security.x509.AVA;
  63 import sun.security.x509.AlgorithmId;
  64 import sun.security.x509.GeneralNameInterface;
  65 import sun.security.x509.RDN;
  66 import sun.security.x509.X500Name;
  67
  68 public class SimpleSigner {
  69
  70     private static GigiPreparedStatement warnMail;
  71
  72     private static GigiPreparedStatement updateMail;
  73
  74     private static GigiPreparedStatement readyCerts;
  75
  76     private static GigiPreparedStatement getSANSs;
  77
  78     private static GigiPreparedStatement revoke;
  79
  80     private static GigiPreparedStatement revokeCompleted;
  81
  82     private static GigiPreparedStatement finishJob;
  83
  84     private static GigiPreparedStatement locateCA;
  85
  86     private static volatile boolean running = true;
  87
  88     private static Thread runner;
  89
  90     private static SimpleDateFormat sdf = new SimpleDateFormat("yyMMddHHmmss'Z'");
  91
  92     static {
  93         TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
  94         sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
  95     }
  96
  97     public static void main(String[] args) throws IOException, SQLException, InterruptedException {
  98         Properties p = new Properties();
  99         try (Reader reader = new InputStreamReader(new FileInputStream("config/gigi.properties"), "UTF-8")) {
 100             p.load(reader);
 101         }
 102         ServerConstants.init(p);
 103         DatabaseConnection.init(p);
 104
 105         runSigner();
 106     }
 107
 108     public static void stopSigner() throws InterruptedException {
 109         Thread capturedRunner;
 110         synchronized (SimpleSigner.class) {
 111             if (runner == null) {
 112                 throw new IllegalStateException("already stopped");
 113             }
 114             capturedRunner = runner;
 115             running = false;
 116             SimpleSigner.class.notifyAll();
 117         }
 118         capturedRunner.join();
 119     }
 120
 121     public synchronized static void runSigner() throws SQLException, IOException, InterruptedException {
 122         if (runner != null) {
 123             throw new IllegalStateException("already running");
 124         }
 125         running = true;
 126
 127         runner = new Thread() {
 128
 129             @Override
 130             public void run() {
 131                 try (Link l = DatabaseConnection.newLink(false)) {
 132                     readyCerts = new GigiPreparedStatement("SELECT certs.id AS id, jobs.id AS jobid, csr_type, md, `executeFrom`, `executeTo`, profile FROM jobs " + //
 133                             "INNER JOIN certs ON certs.id=jobs.`targetId` " + //
 134                             "INNER JOIN profiles ON profiles.id=certs.profile " + //
 135                             "WHERE jobs.state='open' " + //
 136                             "AND task='sign'");
 137
 138                     getSANSs = new GigiPreparedStatement("SELECT contents, type FROM `subjectAlternativeNames` " + //
 139                             "WHERE `certId`=?");
 140
 141                     updateMail = new GigiPreparedStatement("UPDATE certs SET created=NOW(), serial=?, caid=?, expire=? WHERE id=?");
 142                     warnMail = new GigiPreparedStatement("UPDATE jobs SET warning=warning+1, state=CASE WHEN warning<3 THEN 'open'::`jobState` ELSE 'error'::`jobState` END WHERE id=?");
 143
 144                     revoke = new GigiPreparedStatement("SELECT certs.id, jobs.id FROM jobs INNER JOIN certs ON jobs.`targetId`=certs.id" + " WHERE jobs.state='open' AND task='revoke'");
 145                     revokeCompleted = new GigiPreparedStatement("UPDATE `certs` SET revoked=NOW() WHERE id=?");
 146
 147                     finishJob = new GigiPreparedStatement("UPDATE jobs SET state='done' WHERE id=?");
 148
 149                     locateCA = new GigiPreparedStatement("SELECT id FROM cacerts WHERE keyname=?");
 150
 151                     work();
 152                 } catch (InterruptedException e) {
 153                     throw new Error(e);
 154                 }
 155             }
 156
 157         };
 158         runner.start();
 159     }
 160
 161     public static void ping() {
 162         synchronized (SimpleSigner.class) {
 163             SimpleSigner.class.notifyAll();
 164             try {
 165                 SimpleSigner.class.wait(2000);
 166             } catch (InterruptedException e) {
 167                 e.printStackTrace();
 168             }
 169         }
 170     }
 171
 172     private synchronized static void work() {
 173         try {
 174             gencrl();
 175         } catch (IOException e2) {
 176             e2.printStackTrace();
 177         } catch (InterruptedException e2) {
 178             e2.printStackTrace();
 179         }
 180
 181         while (running) {
 182             try {
 183                 signCertificates();
 184                 revokeCertificates();
 185
 186                 SimpleSigner.class.notifyAll();
 187                 SimpleSigner.class.wait(5000);
 188             } catch (IOException e) {
 189                 e.printStackTrace();
 190             } catch (SQLException e) {
 191                 e.printStackTrace();
 192             } catch (InterruptedException e1) {
 193             }
 194         }
 195         runner = null;
 196     }
 197
 198     private static void revokeCertificates() throws SQLException, IOException, InterruptedException {
 199         GigiResultSet rs = revoke.executeQuery();
 200         boolean worked = false;
 201         while (rs.next()) {
 202             int id = rs.getInt(1);
 203             worked = true;
 204             System.out.println("Revoke faked: " + id);
 205             revokeCompleted.setInt(1, id);
 206             revokeCompleted.executeUpdate();
 207             finishJob.setInt(1, rs.getInt(2));
 208             finishJob.executeUpdate();
 209         }
 210         if (worked) {
 211             gencrl();
 212         }
 213     }
 214
 215     private static void gencrl() throws IOException, InterruptedException {
 216         if (true) {
 217             return;
 218         }
 219         String[] call = new String[] {
 220                 "openssl",
 221                 "ca",//
 222                 "-cert",
 223                 "../unassured.crt",//
 224                 "-keyfile",
 225                 "../unassured.key",//
 226                 "-gencrl",//
 227                 "-crlhours",//
 228                 "12",//
 229                 "-out",
 230                 "../unassured.crl",//
 231                 "-config",
 232                 "../selfsign.config"
 233
 234         };
 235         Process p1 = Runtime.getRuntime().exec(call, null, new File("keys/unassured.ca"));
 236         if (p1.waitFor() != 0) {
 237             System.out.println("Error while generating crl.");
 238         }
 239     }
 240
 241     private static void signCertificates() throws SQLException {
 242         GigiResultSet rs = readyCerts.executeQuery();
 243
 244         Calendar c = Calendar.getInstance();
 245         c.setTimeZone(TimeZone.getTimeZone("UTC"));
 246         while (rs.next()) {
 247             int id = rs.getInt("id");
 248             System.out.println("sign: " + id);
 249             try {
 250                 Certificate crt = Certificate.getById(id);
 251                 String csrType = rs.getString("csr_type");
 252                 CSRType ct = CSRType.valueOf(csrType);
 253
 254                 Timestamp from = rs.getTimestamp("executeFrom");
 255                 String length = rs.getString("executeTo");
 256                 Date fromDate;
 257                 Date toDate;
 258                 if (from == null) {
 259                     fromDate = new Date(System.currentTimeMillis());
 260                 } else {
 261                     fromDate = new Date(from.getTime());
 262                 }
 263                 if (length.endsWith("m") || length.endsWith("y")) {
 264                     String num = length.substring(0, length.length() - 1);
 265                     int inter = Integer.parseInt(num);
 266                     c.setTime(fromDate);
 267                     if (length.endsWith("m")) {
 268                         c.add(Calendar.MONTH, inter);
 269                     } else {
 270                         c.add(Calendar.YEAR, inter);
 271                     }
 272                     toDate = c.getTime();
 273                 } else {
 274                     toDate = DateSelector.getDateFormat().parse(length);
 275                 }
 276
 277                 getSANSs.setInt(1, id);
 278                 GigiResultSet san = getSANSs.executeQuery();
 279
 280                 LinkedList<SubjectAlternateName> altnames = new LinkedList<>();
 281                 while (san.next()) {
 282                     altnames.add(new SubjectAlternateName(SANType.valueOf(san.getString("type").toUpperCase()), san.getString("contents")));
 283                 }
 284                 // TODO look them up!
 285                 // cfg.println("keyUsage=critical," +
 286                 // "digitalSignature, keyEncipherment, keyAgreement");
 287                 // cfg.println("extendedKeyUsage=critical," + "clientAuth");
 288                 // cfg.close();
 289
 290                 int profile = rs.getInt("profile");
 291                 CertificateProfile cp = CertificateProfile.getById(profile);
 292                 String s = cp.getId() + "";
 293                 while (s.length() < 4) {
 294                     s = "0" + s;
 295                 }
 296                 s += "-" + cp.getKeyName() + ".cfg";
 297                 Properties caP = new Properties();
 298                 try (FileInputStream inStream = new FileInputStream("signer/profiles/" + s)) {
 299                     caP.load(inStream);
 300                 }
 301
 302                 HashMap<String, String> subj = new HashMap<>();
 303                 try (GigiPreparedStatement ps = new GigiPreparedStatement("SELECT name, value FROM `certAvas` WHERE `certId`=?")) {
 304                     ps.setInt(1, rs.getInt("id"));
 305                     GigiResultSet rs2 = ps.executeQuery();
 306                     while (rs2.next()) {
 307                         String name = rs2.getString("name");
 308                         if (name.equals("EMAIL")) {
 309                             name = "emailAddress";
 310                         }
 311                         subj.put(name, rs2.getString("value"));
 312                     }
 313                 }
 314                 if (subj.size() == 0) {
 315                     subj.put("CN", "<empty>");
 316                     System.out.println("WARNING: DN was empty");
 317                 }
 318                 System.out.println(subj);
 319
 320                 PublicKey pk;
 321                 byte[] data = crt.getAttachment(AttachmentType.CSR).getBytes("UTF-8");
 322                 if (ct == CSRType.SPKAC) {
 323                     String dt = new String(data, "UTF-8");
 324                     if (dt.startsWith("SPKAC=")) {
 325                         dt = dt.substring(6);
 326                         data = dt.getBytes("UTF-8");
 327                         System.out.println(dt);
 328                     }
 329                     SPKAC sp = new SPKAC(Base64.getDecoder().decode(data));
 330                     pk = sp.getPubkey();
 331                 } else {
 332                     PKCS10 p10 = new PKCS10(PEM.decode("(NEW )?CERTIFICATE REQUEST", new String(data, "UTF-8")));
 333                     pk = p10.getSubjectPublicKeyInfo();
 334                 }
 335                 Calendar cal = GregorianCalendar.getInstance();
 336                 String ca = caP.getProperty("ca") + "_" + cal.get(Calendar.YEAR) + (cal.get(Calendar.MONTH) >= 6 ? "_2" : "_1");
 337                 File parent = new File("signer/ca");
 338                 File[] caFiles = parent.listFiles();
 339                 if (null == caFiles) {
 340                     caFiles = new File[0];
 341                 }
 342                 if ( !new File(parent, ca).exists()) {
 343                     System.out.println("CA " + ca + " not found. Searching for anything other remotely fitting.");
 344                     for (File f : caFiles) {
 345                         if (f.getName().startsWith(caP.getProperty("ca"))) {
 346                             ca = f.getName();
 347                             break;
 348                         }
 349                     }
 350                 }
 351                 File caKey = new File(parent, ca + "/ca.key");
 352                 PrivateKey i = loadOpensslKey(caKey);
 353
 354                 X509Certificate root = (X509Certificate) CertificateFactory.getInstance("X509").generateCertificate(new FileInputStream("signer/ca/" + ca + "/ca.crt"));
 355                 byte[] cert = generateCert(pk, i, subj, root.getSubjectX500Principal(), altnames, fromDate, toDate, Digest.valueOf(rs.getString("md").toUpperCase()), caP.getProperty("eku"));
 356                 StringBuilder b = new StringBuilder();
 357                 b.append("-----BEGIN CERTIFICATE-----\r\n");
 358                 b.append(Base64.getMimeEncoder().encodeToString(cert));
 359                 b.append("-----END CERTIFICATE-----\r\n");
 360                 crt.addAttachment(AttachmentType.CRT, b.toString());
 361
 362                 try (InputStream is = new ByteArrayInputStream(cert)) {
 363                     locateCA.setString(1, ca);
 364                     GigiResultSet caRs = locateCA.executeQuery();
 365                     if ( !caRs.next()) {
 366                         throw new Error("ca " + ca + " was not found");
 367                     }
 368
 369                     CertificateFactory cf = CertificateFactory.getInstance("X.509");
 370                     X509Certificate crtp = (X509Certificate) cf.generateCertificate(is);
 371                     BigInteger serial = crtp.getSerialNumber();
 372                     updateMail.setString(1, serial.toString(16));
 373                     updateMail.setInt(2, caRs.getInt("id"));
 374                     updateMail.setTimestamp(3, new Timestamp(toDate.getTime()));
 375                     updateMail.setInt(4, id);
 376                     updateMail.executeUpdate();
 377
 378                     finishJob.setInt(1, rs.getInt("jobid"));
 379                     finishJob.executeUpdate();
 380                     System.out.println("signed: " + id);
 381                     continue;
 382                 }
 383
 384             } catch (GeneralSecurityException e) {
 385                 e.printStackTrace();
 386             } catch (IOException e) {
 387                 e.printStackTrace();
 388             } catch (ParseException e) {
 389                 e.printStackTrace();
 390             } catch (GigiApiException e) {
 391                 e.printStackTrace();
 392             }
 393             System.out.println("Error with: " + id);
 394             warnMail.setInt(1, rs.getInt("jobid"));
 395             warnMail.executeUpdate();
 396
 397         }
 398         rs.close();
 399     }
 400
 401     private static PrivateKey loadOpensslKey(File f) throws FileNotFoundException, IOException, InvalidKeySpecException, NoSuchAlgorithmException {
 402         byte[] p8b = PEM.decode("RSA PRIVATE KEY", new String(IOUtils.readURL(new FileInputStream(f))));
 403         DerOutputStream dos = new DerOutputStream();
 404         dos.putInteger(0);
 405         new AlgorithmId(new ObjectIdentifier(new int[] {
 406                 1, 2, 840, 113549, 1, 1, 1
 407         })).encode(dos);
 408         dos.putOctetString(p8b);
 409         byte[] ctx = dos.toByteArray();
 410         dos.reset();
 411         dos.write(DerValue.tag_Sequence, ctx);
 412         PKCS8EncodedKeySpec p8 = new PKCS8EncodedKeySpec(dos.toByteArray());
 413         PrivateKey i = KeyFactory.getInstance("RSA").generatePrivate(p8);
 414         return i;
 415     }
 416
 417     public static synchronized byte[] generateCert(PublicKey pk, PrivateKey prk, Map<String, String> subj, X500Principal issuer, List<SubjectAlternateName> altnames, Date fromDate, Date toDate, Digest digest, String eku) throws IOException, GeneralSecurityException {
 418         File f = Paths.get("signer", "serial").toFile();
 419         if ( !f.exists()) {
 420             try (FileOutputStream fos = new FileOutputStream(f)) {
 421                 fos.write("1".getBytes("UTF-8"));
 422             }
 423         }
 424         try (FileInputStream fr = new FileInputStream(f)) {
 425             byte[] serial = IOUtils.readURL(fr);
 426             BigInteger ser = new BigInteger(new String(serial).trim());
 427             ser = ser.add(BigInteger.ONE);
 428
 429             PrintWriter pw = new PrintWriter(f);
 430             pw.println(ser);
 431             pw.close();
 432             if (digest != Digest.SHA256 && digest != Digest.SHA384 && digest != Digest.SHA512) {
 433                 System.err.println("assuming sha256 either way ;-): " + digest);
 434                 digest = Digest.SHA256;
 435             }
 436             ObjectIdentifier sha512withrsa = new ObjectIdentifier(new int[] {
 437                     1, 2, 840, 113549, 1, 1, digest == Digest.SHA256 ? 11 : (digest == Digest.SHA384 ? 12 : 13)
 438             });
 439             AlgorithmId aid = new AlgorithmId(sha512withrsa);
 440             Signature s = Signature.getInstance(digest == Digest.SHA256 ? "SHA256withRSA" : (digest == Digest.SHA384 ? "SHA384withRSA" : "SHA512withRSA"));
 441
 442             DerOutputStream cert = new DerOutputStream();
 443             DerOutputStream content = new DerOutputStream();
 444             {
 445                 DerOutputStream version = new DerOutputStream();
 446                 version.putInteger(2); // v3
 447                 content.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0), version);
 448             }
 449             content.putInteger(ser); // Serial
 450             aid.encode(content);
 451
 452             {
 453                 content.write(issuer.getEncoded());
 454             }
 455             {
 456                 DerOutputStream notAround = new DerOutputStream();
 457                 notAround.putUTCTime(fromDate);
 458                 notAround.putUTCTime(toDate);
 459                 content.write(DerValue.tag_Sequence, notAround);
 460             }
 461             {
 462
 463                 X500Name xn = genX500Name(subj);
 464                 content.write(xn.getEncoded());
 465             }
 466             {
 467                 content.write(pk.getEncoded());
 468             }
 469             {
 470                 DerOutputStream extensions = new DerOutputStream();
 471                 {
 472                     addExtension(extensions, new ObjectIdentifier(new int[] {
 473                             2, 5, 29, 17
 474                     }), generateSAN(altnames));
 475                     addExtension(extensions, new ObjectIdentifier(new int[] {
 476                             2, 5, 29, 15
 477                     }), generateKU());
 478                     addExtension(extensions, new ObjectIdentifier(new int[] {
 479                             2, 5, 29, 37
 480                     }), generateEKU(eku));
 481                     addExtension(extensions, new ObjectIdentifier(new int[] {
 482                             1, 3, 6, 1, 5, 5, 7, 1, 1
 483                     }), generateAIA());
 484                 }
 485                 DerOutputStream extensionsSeq = new DerOutputStream();
 486                 extensionsSeq.write(DerValue.tag_Sequence, extensions);
 487                 content.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 3), extensionsSeq);
 488             }
 489
 490             DerOutputStream contentSeq = new DerOutputStream();
 491
 492             contentSeq.write(DerValue.tag_Sequence, content.toByteArray());
 493
 494             s.initSign(prk);
 495             s.update(contentSeq.toByteArray());
 496
 497             aid.encode(contentSeq);
 498             contentSeq.putBitString(s.sign());
 499             cert.write(DerValue.tag_Sequence, contentSeq);
 500
 501             // X509Certificate c = (X509Certificate)
 502             // CertificateFactory.getInstance("X509").generateCertificate(new
 503             // ByteArrayInputStream(cert.toByteArray()));
 504             // c.verify(pk); only for self-signeds
 505
 506             byte[] res = cert.toByteArray();
 507             cert.close();
 508             return res;
 509         }
 510
 511     }
 512
 513     private static byte[] generateAIA() throws IOException {
 514         try (DerOutputStream dos = new DerOutputStream()) {
 515             try (DerOutputStream seq = new DerOutputStream()) {
 516                 seq.putOID(new ObjectIdentifier(new int[] {
 517                         1, 3, 6, 1, 5, 5, 7, 48, 2
 518                 }));
 519                 seq.write((byte) 0x86, ("http://" + ServerConstants.getHostName(Host.OCSP_RESPONDER)).getBytes("UTF-8"));
 520                 dos.write(DerValue.tag_Sequence, seq);
 521             }
 522             byte[] data = dos.toByteArray();
 523             dos.reset();
 524             dos.write(DerValue.tag_Sequence, data);
 525             return dos.toByteArray();
 526         }
 527     }
 528
 529     private static byte[] generateKU() throws IOException {
 530         try (DerOutputStream dos = new DerOutputStream()) {
 531             dos.putBitString(new byte[] {
 532                     (byte) 0b10101000
 533             });
 534             return dos.toByteArray();
 535         }
 536     }
 537
 538     private static byte[] generateEKU(String eku) throws IOException {
 539
 540         try (DerOutputStream dos = new DerOutputStream()) {
 541             for (String name : eku.split(",")) {
 542                 name = name.trim();
 543                 ObjectIdentifier oid;
 544                 switch (name) {
 545                 case "serverAuth":
 546                     oid = new ObjectIdentifier("1.3.6.1.5.5.7.3.1");
 547                     break;
 548                 case "clientAuth":
 549                     oid = new ObjectIdentifier("1.3.6.1.5.5.7.3.2");
 550                     break;
 551                 case "codeSigning":
 552                     oid = new ObjectIdentifier("1.3.6.1.5.5.7.3.3");
 553                     break;
 554                 case "emailProtection":
 555                     oid = new ObjectIdentifier("1.3.6.1.5.5.7.3.4");
 556                     break;
 557                 case "OCSPSigning":
 558                     oid = new ObjectIdentifier("1.3.6.1.5.5.7.3.9");
 559                     break;
 560
 561                 default:
 562                     throw new Error(name);
 563                 }
 564                 dos.putOID(oid);
 565             }
 566             byte[] data = dos.toByteArray();
 567             dos.reset();
 568             dos.write(DerValue.tag_Sequence, data);
 569             return dos.toByteArray();
 570         }
 571     }
 572
 573     public static X500Name genX500Name(Map<String, String> subj) throws IOException {
 574         LinkedList<RDN> rdns = new LinkedList<>();
 575         for (Entry<String, String> i : subj.entrySet()) {
 576             RDN rdn = genRDN(i);
 577             rdns.add(rdn);
 578         }
 579         return new X500Name(rdns.toArray(new RDN[rdns.size()]));
 580     }
 581
 582     private static RDN genRDN(Entry<String, String> i) throws IOException {
 583         DerOutputStream dos = new DerOutputStream();
 584         dos.putUTF8String(i.getValue());
 585         int[] oid;
 586         String key = i.getKey();
 587         switch (key) {
 588         case "CN":
 589             oid = new int[] {
 590                     2, 5, 4, 3
 591             };
 592             break;
 593         case "EMAIL":
 594         case "emailAddress":
 595             oid = new int[] {
 596                     1, 2, 840, 113549, 1, 9, 1
 597             };
 598             break;
 599         case "O":
 600             oid = new int[] {
 601                     2, 5, 4, 10
 602             };
 603             break;
 604         case "OU":
 605             oid = new int[] {
 606                     2, 5, 4, 11
 607             };
 608             break;
 609         case "ST":
 610             oid = new int[] {
 611                     2, 5, 4, 8
 612             };
 613             break;
 614         case "L":
 615             oid = new int[] {
 616                     2, 5, 4, 7
 617             };
 618             break;
 619         case "C":
 620             oid = new int[] {
 621                     2, 5, 4, 6
 622             };
 623             break;
 624         default:
 625             dos.close();
 626             throw new Error("unknown RDN-type: " + key);
 627         }
 628         RDN rdn = new RDN(new AVA(new ObjectIdentifier(oid), new DerValue(dos.toByteArray())));
 629         dos.close();
 630         return rdn;
 631     }
 632
 633     private static void addExtension(DerOutputStream extensions, ObjectIdentifier oid, byte[] extContent) throws IOException {
 634         DerOutputStream SANs = new DerOutputStream();
 635         SANs.putOID(oid);
 636         SANs.putOctetString(extContent);
 637
 638         extensions.write(DerValue.tag_Sequence, SANs);
 639     }
 640
 641     private static byte[] generateSAN(List<SubjectAlternateName> altnames) throws IOException {
 642         DerOutputStream SANContent = new DerOutputStream();
 643         for (SubjectAlternateName san : altnames) {
 644             byte type = 0;
 645             if (san.getType() == SANType.DNS) {
 646                 type = (byte) GeneralNameInterface.NAME_DNS;
 647             } else if (san.getType() == SANType.EMAIL) {
 648                 type = (byte) GeneralNameInterface.NAME_RFC822;
 649             } else {
 650                 SANContent.close();
 651                 throw new Error("" + san.getType());
 652             }
 653             SANContent.write(DerValue.createTag(DerValue.TAG_CONTEXT, false, type), san.getName().getBytes("UTF-8"));
 654         }
 655         DerOutputStream SANSeqContent = new DerOutputStream();
 656         SANSeqContent.write(DerValue.tag_Sequence, SANContent);
 657         byte[] byteArray = SANSeqContent.toByteArray();
 658         SANContent.close();
 659         SANSeqContent.close();
 660         return byteArray;
 661     }
 662 }