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;
}
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();
}
}