public void run() {
try {
input = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
output = new PrintWriter(clientSocket.getOutputStream(), true);
InputStream in = clientSocket.getInputStream();
objIn = new ObjectInputStream(in);
String outputLine;
String inputLine;
long time = System.currentTimeMillis();
// Inicia la comunicación con el cliente
ProtocoloClinica kkp = new ProtocoloClinica(bean);
outputLine = kkp.processMessage(null);
output.println(outputLine);
// Continua la comunicación con el cliente
while ((inputLine = input.readLine()) != null) {
outputLine = kkp.processMessage(inputLine);
if (outputLine.equals("RECIBIDA")) {
leer();
} else {
output.println(outputLine);
}
if (outputLine.equals("OVER")) break;
}
killFrijolito();
System.out.println("Request processed: " + time);
} catch (IOException e) {
// report exception somewhere.
e.printStackTrace();
}
}
public void close() {
try {
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public void write(int i) {
try {
out.write(i);
out.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
private void parseKeyBits() throws InvalidKeyException {
try {
DerInputStream in = new DerInputStream(this.key);
this.y = in.getBigInteger();
} catch (IOException e) {
throw new InvalidKeyException("Error parsing key encoding: " + e.toString());
}
}
public void writeString(String s) {
int len = s.length();
byte[] buf = new byte[len];
for (int i = 0; i < buf.length; i++) buf[i] = (byte) s.charAt(i);
try {
write(len);
out.write(buf);
out.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
public void write(SecureItemTable tbl, char[] password) throws IOException {
OutputStream os = new FileOutputStream(file);
OutputStream xmlout;
if (password.length == 0) {
xmlout = os;
os = null;
} else {
PBEKeySpec keyspec = new PBEKeySpec(password);
Cipher c;
try {
SecretKeyFactory fac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
SecretKey key = fac.generateSecret(keyspec);
c = Cipher.getInstance("PBEWithMD5AndDES");
c.init(Cipher.ENCRYPT_MODE, key, pbeSpec);
} catch (java.security.GeneralSecurityException exc) {
os.close();
IOException ioe = new IOException("Security exception during write");
ioe.initCause(exc);
throw ioe;
}
CipherOutputStream out = new CipherOutputStream(os, c);
xmlout = out;
}
try {
TransformerFactory tf = TransformerFactory.newInstance();
Transformer t = tf.newTransformer();
DOMSource src = new DOMSource(tbl.getDocument());
StringWriter writer = new StringWriter();
StreamResult sr = new StreamResult(writer);
t.transform(src, sr);
OutputStreamWriter osw = new OutputStreamWriter(xmlout, StandardCharsets.UTF_8);
osw.write(writer.toString());
osw.close();
} catch (Exception exc) {
IOException ioe = new IOException("Unable to serialize XML");
ioe.initCause(exc);
throw ioe;
} finally {
xmlout.close();
if (os != null) os.close();
}
tbl.setDirty(false);
return;
}
/*
* Generate PBE key
*/
private SecretKey getPBEKey(char[] password) throws IOException {
SecretKey skey = null;
try {
PBEKeySpec keySpec = new PBEKeySpec(password);
SecretKeyFactory skFac = SecretKeyFactory.getInstance("PBE");
skey = skFac.generateSecret(keySpec);
} catch (Exception e) {
IOException ioe = new IOException("getSecretKey failed: " + e.getMessage());
ioe.initCause(e);
throw ioe;
}
return skey;
}
public void run() // loop utama, utk nerima user input n kirim ke server&client laen
{
while (thread != null) {
try {
String a = console.readLine();
String b = cryptor.encrypt(a);
streamOut.writeUTF(cryptor.encrypt(a));
streamOut.flush();
} catch (IOException ioe) {
System.out.println("Sending error: " + ioe.getMessage());
stop();
}
}
}
public ChatClient(InetAddress iAddress, int serverPort) {
System.out.println("Establishing connection. Please wait ...");
try {
socket = new Socket(iAddress, serverPort);
cryptor = new EDCrypt();
System.out.println("Connected: " + socket);
start();
} catch (UnknownHostException uhe) {
System.out.println("Host unknown: " + uhe.getMessage());
} catch (IOException ioe) {
System.out.println("Unexpected exception: " + ioe.getMessage());
}
}
/*
* Generate PBE Algorithm Parameters
*/
private AlgorithmParameters getAlgorithmParameters(String algorithm) throws IOException {
AlgorithmParameters algParams = null;
// create PBE parameters from salt and iteration count
PBEParameterSpec paramSpec = new PBEParameterSpec(getSalt(), iterationCount);
try {
algParams = AlgorithmParameters.getInstance(algorithm);
algParams.init(paramSpec);
} catch (Exception e) {
IOException ioe = new IOException("getAlgorithmParameters failed: " + e.getMessage());
ioe.initCause(e);
throw ioe;
}
return algParams;
}
/*
* parse Algorithm Parameters
*/
private AlgorithmParameters parseAlgParameters(DerInputStream in) throws IOException {
AlgorithmParameters algParams = null;
try {
DerValue params;
if (in.available() == 0) {
params = null;
} else {
params = in.getDerValue();
if (params.tag == DerValue.tag_Null) {
params = null;
}
}
if (params != null) {
algParams = AlgorithmParameters.getInstance("PBE");
algParams.init(params.toByteArray());
}
} catch (Exception e) {
IOException ioe = new IOException("parseAlgParameters failed: " + e.getMessage());
ioe.initCause(e);
throw ioe;
}
return algParams;
}
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;
}
/**
* Make a DH public key from its DER encoding (X.509).
*
* @param encodedKey the encoded key
* @exception InvalidKeyException if the encoded key does not represent a Diffie-Hellman public
* key
*/
DHPublicKey(byte[] encodedKey) throws InvalidKeyException {
InputStream inStream = new ByteArrayInputStream(encodedKey);
try {
DerValue derKeyVal = new DerValue(inStream);
if (derKeyVal.tag != DerValue.tag_Sequence) {
throw new InvalidKeyException("Invalid key format");
}
/*
* Parse the algorithm identifier
*/
DerValue algid = derKeyVal.data.getDerValue();
if (algid.tag != DerValue.tag_Sequence) {
throw new InvalidKeyException("AlgId is not a SEQUENCE");
}
DerInputStream derInStream = algid.toDerInputStream();
ObjectIdentifier oid = derInStream.getOID();
if (oid == null) {
throw new InvalidKeyException("Null OID");
}
if (derInStream.available() == 0) {
throw new InvalidKeyException("Parameters missing");
}
/*
* Parse the parameters
*/
DerValue params = derInStream.getDerValue();
if (params.tag == DerValue.tag_Null) {
throw new InvalidKeyException("Null parameters");
}
if (params.tag != DerValue.tag_Sequence) {
throw new InvalidKeyException("Parameters not a SEQUENCE");
}
params.data.reset();
this.p = params.data.getBigInteger();
this.g = params.data.getBigInteger();
// Private-value length is OPTIONAL
if (params.data.available() != 0) {
this.l = params.data.getInteger();
}
if (params.data.available() != 0) {
throw new InvalidKeyException("Extra parameter data");
}
/*
* Parse the key
*/
this.key = derKeyVal.data.getBitString();
parseKeyBits();
if (derKeyVal.data.available() != 0) {
throw new InvalidKeyException("Excess key data");
}
this.encodedKey = (byte[]) encodedKey.clone();
} catch (NumberFormatException e) {
throw new InvalidKeyException("Private-value length too big");
} catch (IOException e) {
throw new InvalidKeyException("Error parsing key encoding: " + e.toString());
}
}
/**
* Callback method from _scanKeychain. If an identity is found, this method will be called to
* create Java certificate and private key objects from the keychain data.
*/
private void createKeyEntry(
String alias,
long creationDate,
long secKeyRef,
long[] secCertificateRefs,
byte[][] rawCertData)
throws IOException, NoSuchAlgorithmException, UnrecoverableKeyException {
KeyEntry ke = new KeyEntry();
// First, store off the private key information. This is the easy part.
ke.protectedPrivKey = null;
ke.keyRef = secKeyRef;
// Make a creation date.
if (creationDate != 0) ke.date = new Date(creationDate);
else ke.date = new Date();
// Next, create X.509 Certificate objects from the raw data. This is complicated
// because a certificate's public key may be too long for Java's default encryption strength.
List<CertKeychainItemPair> createdCerts = new ArrayList<>();
try {
CertificateFactory cf = CertificateFactory.getInstance("X.509");
for (int i = 0; i < rawCertData.length; i++) {
try {
InputStream input = new ByteArrayInputStream(rawCertData[i]);
X509Certificate cert = (X509Certificate) cf.generateCertificate(input);
input.close();
// We successfully created the certificate, so track it and its corresponding
// SecCertificateRef.
createdCerts.add(new CertKeychainItemPair(secCertificateRefs[i], cert));
} catch (CertificateException e) {
// The certificate will be skipped.
System.err.println("KeychainStore Ignored Exception: " + e);
}
}
} catch (CertificateException e) {
e.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace(); // How would this happen?
}
// We have our certificates in the List, so now extract them into an array of
// Certificates and SecCertificateRefs.
CertKeychainItemPair[] objArray = createdCerts.toArray(new CertKeychainItemPair[0]);
Certificate[] certArray = new Certificate[objArray.length];
long[] certRefArray = new long[objArray.length];
for (int i = 0; i < objArray.length; i++) {
CertKeychainItemPair addedItem = objArray[i];
certArray[i] = addedItem.mCert;
certRefArray[i] = addedItem.mCertificateRef;
}
ke.chain = certArray;
ke.chainRefs = certRefArray;
// If we don't have already have an item with this item's alias
// create a new one for it.
int uniqueVal = 1;
String originalAlias = alias;
while (entries.containsKey(alias.toLowerCase())) {
alias = originalAlias + " " + uniqueVal;
uniqueVal++;
}
entries.put(alias.toLowerCase(), ke);
}
public static void main(String[] args) {
try {
if (args[0].equals("-genkey")) {
KeyPairGenerator pairgen = KeyPairGenerator.getInstance("RSA");
SecureRandom random = new SecureRandom();
pairgen.initialize(KEYSIZE, random);
KeyPair keyPair = pairgen.generateKeyPair();
ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(args[1]));
out.writeObject(keyPair.getPublic());
out.close();
out = new ObjectOutputStream(new FileOutputStream(args[2]));
out.writeObject(keyPair.getPrivate());
out.close();
} else if (args[0].equals("-encrypt")) {
KeyGenerator keygen = KeyGenerator.getInstance("AES");
SecureRandom random = new SecureRandom();
keygen.init(random);
SecretKey key = keygen.generateKey();
// wrap with RSA public key
ObjectInputStream keyIn = new ObjectInputStream(new FileInputStream(args[3]));
Key publicKey = (Key) keyIn.readObject();
keyIn.close();
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.WRAP_MODE, publicKey);
byte[] wrappedKey = cipher.wrap(key);
DataOutputStream out = new DataOutputStream(new FileOutputStream(args[2]));
out.writeInt(wrappedKey.length);
out.write(wrappedKey);
InputStream in = new FileInputStream(args[1]);
cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, key);
crypt(in, out, cipher);
in.close();
out.close();
} else {
DataInputStream in = new DataInputStream(new FileInputStream(args[1]));
int length = in.readInt();
byte[] wrappedKey = new byte[length];
in.read(wrappedKey, 0, length);
// unwrap with RSA private key
ObjectInputStream keyIn = new ObjectInputStream(new FileInputStream(args[3]));
Key privateKey = (Key) keyIn.readObject();
keyIn.close();
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.UNWRAP_MODE, privateKey);
Key key = cipher.unwrap(wrappedKey, "AES", Cipher.SECRET_KEY);
OutputStream out = new FileOutputStream(args[2]);
cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, key);
crypt(in, out, cipher);
in.close();
out.close();
}
} catch (IOException e) {
e.printStackTrace();
} catch (GeneralSecurityException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
