Exemplo n.º 1
0
 public Hash() {
   try {
     Digest = MessageDigest.getInstance("MD5");
   } catch (NoSuchAlgorithmException ex) {
     ex.printStackTrace();
   }
 }
Exemplo n.º 2
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 public static KeyPair func_75891_b() {
   try {
     KeyPairGenerator keypairgenerator = KeyPairGenerator.getInstance("RSA");
     keypairgenerator.initialize(1024);
     return keypairgenerator.generateKeyPair();
   } catch (NoSuchAlgorithmException nosuchalgorithmexception) {
     nosuchalgorithmexception.printStackTrace();
   }
   System.err.println("Key pair generation failed!");
   return null;
 }
 private PrivateKey getPrivateKey(BigInteger privExp, BigInteger modulus)
     throws InvalidKeySpecException {
   RSAPrivateKeySpec privSpec = new RSAPrivateKeySpec(modulus, privExp);
   KeyFactory keyFactory = null;
   try {
     keyFactory = KeyFactory.getInstance("RSA");
   } catch (NoSuchAlgorithmException e) {
     e.printStackTrace();
   }
   return keyFactory.generatePrivate(privSpec);
 }
Exemplo n.º 4
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 public static PublicKey func_75896_a(byte p_75896_0_[]) {
   try {
     X509EncodedKeySpec x509encodedkeyspec = new X509EncodedKeySpec(p_75896_0_);
     KeyFactory keyfactory = KeyFactory.getInstance("RSA");
     return keyfactory.generatePublic(x509encodedkeyspec);
   } catch (NoSuchAlgorithmException nosuchalgorithmexception) {
     nosuchalgorithmexception.printStackTrace();
   } catch (InvalidKeySpecException invalidkeyspecexception) {
     invalidkeyspecexception.printStackTrace();
   }
   System.err.println("Public key reconstitute failed!");
   return null;
 }
Exemplo n.º 5
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 private static Cipher func_75886_a(int p_75886_0_, String p_75886_1_, Key p_75886_2_) {
   try {
     Cipher cipher = Cipher.getInstance(p_75886_1_);
     cipher.init(p_75886_0_, p_75886_2_);
     return cipher;
   } catch (InvalidKeyException invalidkeyexception) {
     invalidkeyexception.printStackTrace();
   } catch (NoSuchAlgorithmException nosuchalgorithmexception) {
     nosuchalgorithmexception.printStackTrace();
   } catch (NoSuchPaddingException nosuchpaddingexception) {
     nosuchpaddingexception.printStackTrace();
   }
   System.err.println("Cipher creation failed!");
   return null;
 }
Exemplo n.º 6
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  private static byte[] func_75893_a(String p_75893_0_, byte p_75893_1_[][]) {
    try {
      MessageDigest messagedigest = MessageDigest.getInstance(p_75893_0_);
      byte abyte0[][] = p_75893_1_;
      int i = abyte0.length;
      for (int j = 0; j < i; j++) {
        byte abyte1[] = abyte0[j];
        messagedigest.update(abyte1);
      }

      return messagedigest.digest();
    } catch (NoSuchAlgorithmException nosuchalgorithmexception) {
      nosuchalgorithmexception.printStackTrace();
    }
    return null;
  }
Exemplo n.º 7
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 // Other Functions
 public static String encrypt(String pass) { // Encrypts password using MD5
   try {
     MessageDigest md = MessageDigest.getInstance("MD5");
     byte[] passBytes = pass.getBytes();
     md.reset();
     byte[] digested = md.digest(passBytes);
     StringBuffer sb = new StringBuffer();
     for (int i = 0; i < digested.length; i++) {
       sb.append(Integer.toHexString(0xff & digested[i]));
     }
     return sb.toString();
   } catch (NoSuchAlgorithmException e) {
     e.printStackTrace();
   }
   return null;
 }
Exemplo n.º 8
0
 /**
  * Returns an MD5 hash.
  *
  * @param pw String
  * @return String
  */
 private static String md5(final String pw) {
   final StringBuilder sb = new StringBuilder();
   try {
     final MessageDigest md = MessageDigest.getInstance("MD5");
     md.update(pw.getBytes());
     for (final byte b : md.digest()) {
       final String s = Integer.toHexString(b & 0xFF);
       if (s.length() == 1) sb.append('0');
       sb.append(s);
     }
   } catch (final NoSuchAlgorithmException ex) {
     // should not occur
     ex.printStackTrace();
   }
   return sb.toString();
 }
  /*
   * Constructs (i.e., parses) an <code>EncryptedPrivateKeyInfo</code> from
   * its ASN.1 encoding.
   *
   * @param encoded the ASN.1 encoding of this object.
   * @exception NullPointerException if the <code>encoded</code> is null.
   * @exception IOException if error occurs when parsing the ASN.1 encoding.
   */
  public EncryptedPrivateKeyInfo(byte[] encoded) throws NullPointerException, IOException {
    if (encoded == null) {
      throw new NullPointerException("parameters null");
    }

    ByteArrayInputStream bIn = new ByteArrayInputStream(encoded);
    ASN1InputStream dIn = new ASN1InputStream(bIn);

    infoObj =
        new org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo((ASN1Sequence) dIn.readObject());

    try {
      algP = this.getParameters();
    } catch (NoSuchAlgorithmException e) {
      throw new IOException("can't create parameters: " + e.toString());
    }
  }
Exemplo n.º 10
0
  /**
   * Compute the hash an IP address. The hash is the first 8 bytes of the SHA digest of the IP
   * address.
   */
  private static byte[] computeAddressHash() {

    /*
     * Get the local host's IP address.
     */
    byte[] addr =
        (byte[])
            java.security.AccessController.doPrivileged(
                new PrivilegedAction() {
                  public Object run() {
                    try {
                      return InetAddress.getLocalHost().getAddress();
                    } catch (Exception e) {
                    }
                    return new byte[] {0, 0, 0, 0};
                  }
                });

    byte[] addrHash;
    final int ADDR_HASH_LENGTH = 8;

    try {
      /*
       * Calculate message digest of IP address using SHA.
       */
      MessageDigest md = MessageDigest.getInstance("SHA");
      ByteArrayOutputStream sink = new ByteArrayOutputStream(64);
      DataOutputStream out = new DataOutputStream(new DigestOutputStream(sink, md));
      out.write(addr, 0, addr.length);
      out.flush();

      byte digest[] = md.digest();
      int hashlength = Math.min(ADDR_HASH_LENGTH, digest.length);
      addrHash = new byte[hashlength];
      System.arraycopy(digest, 0, addrHash, 0, hashlength);

    } catch (IOException ignore) {
      /* can't happen, but be deterministic anyway. */
      addrHash = new byte[0];
    } catch (NoSuchAlgorithmException complain) {
      throw new InternalError(complain.toString());
    }
    return addrHash;
  }
  public Boolean verifySignature(byte[] originalData, byte[] signedData) {
    boolean verified = false;

    try {
      Signature sig = Signature.getInstance("SHA1withDSA", "SUN");
      sig.initVerify(getPublicKey());
      sig.update(originalData, 0, originalData.length);
      verified = sig.verify(signedData);
    } catch (SignatureException ex) {
      ex.printStackTrace();
      Logger.getLogger(SignatureVerifier.class.getName()).log(Level.SEVERE, null);
    } catch (InvalidKeyException ex) {
      ex.printStackTrace();
      Logger.getLogger(SignatureVerifier.class.getName()).log(Level.SEVERE, null);
    } catch (NoSuchAlgorithmException ex) {
      ex.printStackTrace();
      Logger.getLogger(SignatureVerifier.class.getName()).log(Level.SEVERE, null);
    } catch (NoSuchProviderException ex) {
      ex.printStackTrace();
      Logger.getLogger(SignatureVerifier.class.getName()).log(Level.SEVERE, null);
    }

    return verified;
  }
  public boolean delete(String filename, UserToken token) {
    try {
      String remotePath;
      if (filename.charAt(0) == '/') {
        remotePath = filename.substring(1);
      } else {
        remotePath = filename;
      }
      Envelope env = new Envelope("DELETEF"); // Success
      env.addObject(remotePath);
      env.addObject(token);
      String concat =
          remotePath
              + token.toString()
              + "DELETEF"
              + nonce; // concatinates all of the objects in envelope
      byte[] hasharray = concat.getBytes(); // turn the concat into a byte array
      Mac mac = Mac.getInstance("HmacSHA1");
      mac.init(HMACkey);
      mac.update(hasharray);
      String stringhash =
          new String(mac.doFinal(), "UTF8"); // turn the hash into a string for easy comparision!
      env.addObject(stringhash);
      env.addObject(nonce);
      nonce++;

      byte[] envBytes = Envelope.toByteArray(env);

      // Encrypt envelope w/ AES
      Cipher cipher = Cipher.getInstance("AES");
      cipher.init(Cipher.ENCRYPT_MODE, AESkey);
      byte[] cipherBytes = cipher.doFinal(envBytes);

      output.writeObject(cipherBytes);

      byte[] responseCipherBytes = (byte[]) input.readObject();

      // Decrypt response
      cipher.init(Cipher.DECRYPT_MODE, AESkey);
      byte[] responseBytes = cipher.doFinal(responseCipherBytes);

      env = Envelope.getEnvelopefromBytes(responseBytes);
      System.out.println(env.getMessage());
      if ((Integer) env.getObjContents().get(1) == nonce) {
        String hash = (String) env.getObjContents().get(0);
        concat = env.getMessage() + nonce; // reconstructs the hash
        hasharray = concat.getBytes();
        mac = Mac.getInstance("HmacSHA1");
        File HASHfile = new File("FHASHKey.bin");
        FileInputStream fis = new FileInputStream(HASHfile);
        ObjectInputStream ois = new ObjectInputStream(fis);
        Key HMACkey = (Key) ois.readObject();
        mac.init(HMACkey);
        mac.update(hasharray);
        String newhash = new String(mac.doFinal(), "UTF8");
        nonce++;

        if (hash.equals(newhash) != true) // check hashes for equality
        {
          System.out.println("HASH EQUALITY FAIL");
          return false;
        }

        if (env.getMessage().compareTo("OK") == 0) {
          System.out.printf("File %s deleted successfully\n", filename);
        } else {
          System.out.printf("Error deleting file %s (%s)\n", filename, env.getMessage());
          return false;
        }
      }
    } catch (IllegalBlockSizeException ex) {
      ex.printStackTrace(System.err);
    } catch (BadPaddingException ex) {
      ex.printStackTrace(System.err);
    } catch (InvalidKeyException ex) {
      ex.printStackTrace(System.err);
    } catch (NoSuchAlgorithmException ex) {
      ex.printStackTrace(System.err);
    } catch (NoSuchPaddingException ex) {
      ex.printStackTrace(System.err);
    } catch (IOException e1) {
      e1.printStackTrace(System.err);
    } catch (ClassNotFoundException e1) {
      e1.printStackTrace(System.err);
    }

    return true;
  }
Exemplo n.º 13
0
  @Override
  public void run() {

    ChukasaModel chukasaModel = chukasaModelManagementComponent.get(adaptiveBitrateStreaming);
    String streamPath = chukasaModel.getStreamPath();
    String tempEncPath = chukasaModel.getTempEncPath();
    int tsPacketLength = chukasaModel.getHlsConfiguration().getMpeg2TsPacketLength();

    int seqTsEnc = 0; // getSeqTsEnc();
    seqTsEnc = chukasaModel.getSeqTsEnc();
    if (chukasaModel.getChukasaSettings().getStreamingType() == StreamingType.OKKAKE) {
      seqTsEnc = chukasaModel.getSeqTsOkkake() - 1;
    }
    if (chukasaModel.isFlagLastTs()) {
      seqTsEnc = chukasaModel.getSeqTsLast();
    }

    Key sKey;
    Cipher c;
    FileOutputStream keyOut;
    FileWriter ivOut;
    FileInputStream fis;
    BufferedInputStream bis;
    FileOutputStream fos;
    CipherOutputStream cos;

    try {
      Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());

      sKey = makeKey(128); // Key length is 128bit
      c = Cipher.getInstance("AES/CBC/PKCS7Padding", "BC");

      c.init(Cipher.ENCRYPT_MODE, sKey);

      // Set Key File Name at random
      String keyPre = RandomStringUtils.randomAlphabetic(10);
      keyOut = new FileOutputStream(streamPath + FILE_SEPARATOR + keyPre + seqTsEnc + ".key");

      chukasaModel.getKeyArrayList().add(keyPre);
      chukasaModel = chukasaModelManagementComponent.update(adaptiveBitrateStreaming, chukasaModel);

      byte[] keyOutByte = sKey.getEncoded();
      keyOut.write(keyOutByte);
      keyOut.close();

      byte[] iv = c.getIV();

      String ivHex = "";
      for (int i = 0; i < iv.length; i++) {
        String ivHexTmp = String.format("%02x", iv[i]).toUpperCase();
        ivHex = ivHex + ivHexTmp;
      }

      String ivPre = RandomStringUtils.randomAlphabetic(10);
      ivOut = new FileWriter(streamPath + FILE_SEPARATOR + ivPre + seqTsEnc + ".iv");
      ivOut.write(ivHex);
      ivOut.close();

      chukasaModel.getIvArrayList().add(ivHex);
      chukasaModel = chukasaModelManagementComponent.update(adaptiveBitrateStreaming, chukasaModel);

      fis =
          new FileInputStream(
              tempEncPath
                  + FILE_SEPARATOR
                  + chukasaModel.getChukasaConfiguration().getStreamFileNamePrefix()
                  + seqTsEnc
                  + chukasaModel.getHlsConfiguration().getStreamExtension());
      bis = new BufferedInputStream(fis);
      fos =
          new FileOutputStream(
              streamPath
                  + FILE_SEPARATOR
                  + chukasaModel.getChukasaConfiguration().getStreamFileNamePrefix()
                  + seqTsEnc
                  + chukasaModel.getHlsConfiguration().getStreamExtension());
      cos = new CipherOutputStream(fos, c);
      if (chukasaModel.getChukasaSettings().getStreamingType() == StreamingType.OKKAKE) {
        // TODO:
        fis =
            new FileInputStream(
                tempEncPath
                    + FILE_SEPARATOR
                    + "fileSequenceEncoded"
                    + seqTsEnc
                    + chukasaModel.getHlsConfiguration().getStreamExtension());
        bis = new BufferedInputStream(fis);
        fos =
            new FileOutputStream(
                streamPath
                    + FILE_SEPARATOR
                    + chukasaModel.getChukasaConfiguration().getStreamFileNamePrefix()
                    + seqTsEnc
                    + chukasaModel.getHlsConfiguration().getStreamExtension());
        cos = new CipherOutputStream(fos, c);
      }

      byte[] buf = new byte[tsPacketLength];

      int ch;
      while ((ch = bis.read(buf)) != -1) {
        cos.write(buf, 0, ch);
      }
      cos.close();
      fos.close();
      bis.close();
      fis.close();

    } catch (InvalidKeyException e) {
      e.printStackTrace();
    } catch (NoSuchPaddingException e) {
      e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
      e.printStackTrace();
    } catch (NoSuchProviderException e) {
      e.printStackTrace();
    } catch (FileNotFoundException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }