public Hash() {
try {
Digest = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException ex) {
ex.printStackTrace();
}
}
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);
}
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;
}
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;
}
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;
}
// 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;
}
/**
* 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();
}
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;
}
@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();
}
}