Пример #1
0
  private byte[] doSignatureFile(String[] digestNames, MessageDigest[] algorithms, byte[] manbytes)
      throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    PrintWriter ps = IO.writer(out);
    ps.print("Signature-Version: 1.0\r\n");

    for (int a = 0; a < algorithms.length; a++) {
      if (algorithms[a] != null) {
        byte[] digest = algorithms[a].digest(manbytes);
        ps.print(digestNames[a] + "-Digest-Manifest: ");
        ps.print(new Base64(digest));
        ps.print("\r\n");
      }
    }
    return out.toByteArray();
  }
Пример #2
0
  public void signJar(Jar jar) {
    if (digestNames == null || digestNames.length == 0)
      error("Need at least one digest algorithm name, none are specified");

    if (keystoreFile == null || !keystoreFile.getAbsoluteFile().exists()) {
      error("No such keystore file: " + keystoreFile);
      return;
    }

    if (alias == null) {
      error("Private key alias not set for signing");
      return;
    }

    MessageDigest digestAlgorithms[] = new MessageDigest[digestNames.length];

    getAlgorithms(digestNames, digestAlgorithms);

    try {
      Manifest manifest = jar.getManifest();
      manifest.getMainAttributes().putValue("Signed-By", "Bnd");

      // Create a new manifest that contains the
      // Name parts with the specified digests

      ByteArrayOutputStream o = new ByteArrayOutputStream();
      manifest.write(o);
      doManifest(jar, digestNames, digestAlgorithms, o);
      o.flush();
      byte newManifestBytes[] = o.toByteArray();
      jar.putResource("META-INF/MANIFEST.MF", new EmbeddedResource(newManifestBytes, 0));

      // Use the bytes from the new manifest to create
      // a signature file

      byte[] signatureFileBytes = doSignatureFile(digestNames, digestAlgorithms, newManifestBytes);
      jar.putResource("META-INF/BND.SF", new EmbeddedResource(signatureFileBytes, 0));

      // Now we must create an RSA signature
      // this requires the private key from the keystore

      KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());

      KeyStore.PrivateKeyEntry privateKeyEntry = null;

      java.io.FileInputStream keystoreInputStream = null;
      try {
        keystoreInputStream = new java.io.FileInputStream(keystoreFile);
        char[] pw = password == null ? new char[0] : password.toCharArray();

        keystore.load(keystoreInputStream, pw);
        keystoreInputStream.close();
        privateKeyEntry =
            (PrivateKeyEntry) keystore.getEntry(alias, new KeyStore.PasswordProtection(pw));
      } catch (Exception e) {
        error(
            "No able to load the private key from the give keystore("
                + keystoreFile.getAbsolutePath()
                + ") with alias "
                + alias
                + " : "
                + e);
        return;
      } finally {
        IO.close(keystoreInputStream);
      }
      PrivateKey privateKey = privateKeyEntry.getPrivateKey();

      Signature signature = Signature.getInstance("MD5withRSA");
      signature.initSign(privateKey);

      signature.update(signatureFileBytes);

      signature.sign();

      // TODO, place the SF in a PCKS#7 structure ...
      // no standard class for this? The following
      // is an idea but we will to have do ASN.1 BER
      // encoding ...

      ByteArrayOutputStream tmpStream = new ByteArrayOutputStream();
      jar.putResource("META-INF/BND.RSA", new EmbeddedResource(tmpStream.toByteArray(), 0));
    } catch (Exception e) {
      error("During signing: " + e);
    }
  }