public byte[] sign() throws BadPaddingException, IllegalBlockSizeException {
cipher.update(beforeAlgorithmIdBytes);
cipher.update(algorithmIdBytes);
cipher.update(afterAlgorithmIdBytes);
cipher.update(md.digest());
return cipher.doFinal();
}
public static byte[] encryptbytes(
byte[] bytefile, SecretKey secretKey, byte[] nonceBuffer, int offset) {
byte[] byteCipherText = null;
try {
final byte[] plaintext = bytefile;
final byte[] nonce = nonceBuffer;
final byte[] ciphertext = new byte[plaintext.length];
Cipher cipher = Cipher.getInstance("AES/CTR/NoPadding");
final int skip = offset % BLOCK_SIZE;
final IvParameterSpec nonceIV =
calculateIVForOffset(
generateIVFromNonce(nonce, 0, NONCE_SIZE, cipher.getBlockSize()), offset - skip);
cipher.init(Cipher.ENCRYPT_MODE, secretKey, nonceIV);
final byte[] skipBuffer = new byte[skip];
cipher.update(skipBuffer, 0, skip, skipBuffer);
cipher.doFinal(plaintext, 0, plaintext.length, ciphertext);
byteCipherText = ciphertext;
} catch (final GeneralSecurityException e) {
throw new IllegalStateException("Missing basic functionality from Java runtime", e);
}
return byteCipherText;
}
public static byte[] compute(SecretKey key, byte[] message)
throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException,
ShortBufferException, IllegalBlockSizeException, BadPaddingException,
InvalidAlgorithmParameterException {
byte finalBlock[] = new byte[16];
int numCBC = message.length / 16;
int leftOver = message.length % 16;
ByteBuffer zeroBuffer = ByteBuffer.wrap(ZERO_128);
byte[] encryptZero = encryptBlock(key, zeroBuffer);
byte[] k1 = getSubkey(encryptZero);
if (leftOver != 0) {
for (int i = 0; i < leftOver; i++) {
finalBlock[i] = message[numCBC * 16 + i];
}
finalBlock[leftOver] = (byte) 0x80;
// This can probably be skipped, since java initializes to zero.
for (int j = leftOver + 1; j < 16; j++) {
finalBlock[j] = 0;
}
xorArrayInPlace(finalBlock, k1);
} else {
byte k2[] = getSubkey(k1);
xorArrayInPlace(finalBlock, k2);
}
Cipher c = Cipher.getInstance("AES/CBC/NoPadding");
c.init(Cipher.ENCRYPT_MODE, key, ZERO_IV);
if (numCBC > 0) {
c.update(message, 0, numCBC * 16);
}
return c.doFinal(finalBlock);
}
private static byte[] gcmEncrypt(byte[] key, byte[] plainText, byte[] aad, byte[] iv) {
byte[] cipherText = new byte[plainText.length + 16];
try {
SecretKeySpec keySpec = new SecretKeySpec(key, ALGORITHM);
GCMParameterSpec gcmSpec = new GCMParameterSpec(GCM_TAG_LENGTH * 8, iv);
Cipher cipher = Cipher.getInstance(ALGORITHM + "/" + MODE + "/NoPadding");
cipher.init(Cipher.ENCRYPT_MODE, keySpec, gcmSpec);
if (aad != null && aad.length != 0) {
cipher.updateAAD(aad);
}
// if has more than one blocks, test cipher.update
if (plainText.length > 16) {
cipher.update(plainText, 0, 16, cipherText, 0);
cipher.doFinal(plainText, 16, plainText.length - 16, cipherText, 16);
} else {
// doFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
cipher.doFinal(plainText, 0, plainText.length, cipherText, 0);
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
return cipherText;
}
private void Encrypter(String data) throws Exception {
// Security.addProvider(new MainActivity().BouncyCastleProvider());
byte[] input = data.getBytes();
byte[] keyBytes = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
int keySize = keyBytes.length;
SecretKeySpec key = new SecretKeySpec(keyBytes, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding", "BC");
mTxtInput.setText(new String(data));
// System.out.println(new String(input));
// encryption pass
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] cipherText = new byte[cipher.getOutputSize(input.length)];
int ctLength = cipher.update(input, 0, input.length, cipherText, 0);
ctLength += cipher.doFinal(cipherText, ctLength);
// System.out.println(new String(cipherText));
// System.out.println(ctLength);
mTxtCipher.setText(new String(cipherText));
mTxtCtLenght.setText(String.valueOf(ctLength));
// decryption pass
String x = new String(cipherText);
}
public void init(int mode, byte[] key, byte[] iv) throws Exception {
byte[] tmp;
if (key.length > bsize) {
tmp = new byte[bsize];
System.arraycopy(key, 0, tmp, 0, tmp.length);
key = tmp;
}
try {
cipher = javax.crypto.Cipher.getInstance("RC4");
SecretKeySpec _key = new SecretKeySpec(key, "RC4");
synchronized (javax.crypto.Cipher.class) {
cipher.init(
(mode == ENCRYPT_MODE
? javax.crypto.Cipher.ENCRYPT_MODE
: javax.crypto.Cipher.DECRYPT_MODE),
_key);
}
byte[] foo = new byte[1];
for (int i = 0; i < skip; i++) {
cipher.update(foo, 0, 1, foo, 0);
}
} catch (Exception e) {
cipher = null;
throw e;
}
}
/**
* Do actual encryption/decryption from source to destination file.
*
* @return <code>true</code> if file is successfully encrypted/decrypted, otherwise <code>false
* </code>.
*/
public boolean process() {
try {
InputStream inputStream = Files.newInputStream(inputPath, StandardOpenOption.READ);
OutputStream outputStream = Files.newOutputStream(outputPath, StandardOpenOption.WRITE);
byte[] inputBuffer = new byte[4096];
while (true) {
int byteCount = inputStream.read(inputBuffer);
if (byteCount < 1) break;
byte[] outputBuffer = new byte[4096];
int outputByteCount = cipher.update(inputBuffer, 0, byteCount, outputBuffer);
outputStream.write(outputBuffer, 0, outputByteCount);
}
byte[] outputBuffer = new byte[4096];
int outputByteCount = cipher.doFinal(outputBuffer, 0);
outputStream.write(outputBuffer, 0, outputByteCount);
} catch (ShortBufferException e) {
return false;
} catch (IllegalBlockSizeException e) {
return false;
} catch (BadPaddingException e) {
return false;
} catch (IOException e) {
return false;
}
return true;
}
@Override
public byte readByte() {
if (!isOpen()) {
return -1;
}
if (filename == null && count > maxCount) {
open = false;
return -1;
}
byte prng = -1;
/*
* encrypt file if exists
*/
if (filename != null) {
if (countLastRead == actualSize) { // end of buffer?
super.readByte(); // read & fill buffer from file
if (!isOpen()) {
return -1;
}
countLastRead = 0;
try {
algo.update(buffer, 0, actualSize, buffer);
} catch (ShortBufferException e) {
throw new IllegalStateException(e);
} // encrypt it
}
prng = buffer[countLastRead++];
count++;
return prng;
}
/*
* we have no real filename to encrypt
*/
if (outAlgoBufferIx == outAlgoBuffer.length) {
outAlgoBuffer = algo.update(inAlgoBuffer);
outAlgoBufferIx = 0;
}
prng = outAlgoBuffer[outAlgoBufferIx++];
count++;
return prng;
}
public void run() {
try {
ObjectInputStream ois = new ObjectInputStream(s.getInputStream());
ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream());
BigInteger bg = dhSpec.getG();
BigInteger bp = dhSpec.getP();
oos.writeObject(bg);
oos.writeObject(bp);
KeyPairGenerator kpg = KeyPairGenerator.getInstance("DH");
kpg.initialize(1024);
KeyPair kpa = (KeyPair) ois.readObject();
KeyAgreement dh = KeyAgreement.getInstance("DH");
KeyPair kp = kpg.generateKeyPair();
oos.writeObject(kp);
dh.init(kp.getPrivate());
Key pk = dh.doPhase(kpa.getPublic(), true);
MessageDigest sha256 = MessageDigest.getInstance("SHA-256");
byte[] rawbits = sha256.digest(dh.generateSecret());
Cipher c = Cipher.getInstance(CIPHER_MODE);
SecretKey key = new SecretKeySpec(rawbits, 0, 16, "AES");
byte ivbits[] = (byte[]) ois.readObject();
IvParameterSpec iv = new IvParameterSpec(ivbits);
c.init(Cipher.DECRYPT_MODE, key, iv);
Mac m = Mac.getInstance("HmacSHA1");
SecretKey mackey = new SecretKeySpec(rawbits, 16, 16, "HmacSHA1");
m.init(mackey);
byte ciphertext[], cleartext[], mac[];
try {
while (true) {
ciphertext = (byte[]) ois.readObject();
mac = (byte[]) ois.readObject();
if (Arrays.equals(mac, m.doFinal(ciphertext))) {
cleartext = c.update(ciphertext);
System.out.println(ct + " : " + new String(cleartext, "UTF-8"));
} else {
// System.exit(1);
System.out.println(ct + "error");
}
}
} catch (EOFException e) {
cleartext = c.doFinal();
System.out.println(ct + " : " + new String(cleartext, "UTF-8"));
System.out.println("[" + ct + "]");
} finally {
if (ois != null) ois.close();
if (oos != null) oos.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void testGCMParameterSpecWithMultipleUpdates(
byte[] K, byte[] N, byte[] A, byte[] P, byte[] C) throws Exception {
Cipher eax = Cipher.getInstance("AES/EAX/NoPadding", "BC");
SecretKeySpec key = new SecretKeySpec(K, "AES");
SecureRandom random = new SecureRandom();
// GCMParameterSpec mapped to AEADParameters and overrides default MAC
// size
GCMParameterSpec spec = new GCMParameterSpec(128, N);
for (int i = 900; i != 1024; i++) {
byte[] message = new byte[i];
random.nextBytes(message);
eax.init(Cipher.ENCRYPT_MODE, key, spec);
byte[] out = new byte[eax.getOutputSize(i)];
int offSet = 0;
int count;
for (count = 0; count < i / 21; count++) {
offSet += eax.update(message, count * 21, 21, out, offSet);
}
offSet += eax.doFinal(message, count * 21, i - (count * 21), out, offSet);
byte[] dec = new byte[i];
int len = offSet;
eax.init(Cipher.DECRYPT_MODE, key, spec);
offSet = 0;
for (count = 0; count < len / 10; count++) {
offSet += eax.update(out, count * 10, 10, dec, offSet);
}
offSet += eax.doFinal(out, count * 10, len - (count * 10), dec, offSet);
if (!Arrays.areEqual(message, dec) || offSet != message.length) {
fail("message mismatch");
}
}
}
public static void crypt(String inFilename, String outFilename, int mode) {
InputStream in = null;
OutputStream out = null;
ObjectInputStream keyin = null;
try {
in = new FileInputStream(inFilename);
out = new FileOutputStream(outFilename);
keyin = new ObjectInputStream(new FileInputStream(keyFilename));
// 获取到密钥
Key key = (Key) keyin.readObject();
// 使用AES算法获取密码对象
Cipher cipher = Cipher.getInstance("AES");
// 通过设置模式和密钥来初始化
cipher.init(mode, key);
// 获取密码块大小，16
int blockSize = cipher.getBlockSize();
// 该密码块对应的输出缓存区大小，用于存放密码对象输出的数据块
int outputSize = cipher.getOutputSize(blockSize);
byte[] inBytes = new byte[blockSize];
byte[] outBytes = new byte[outputSize];
int length = 0;
boolean more = true;
while (more) {
length = in.read(inBytes);
// 如果能读到blockSize大小的块
if (length == blockSize) {
// 数据块存入outBytes
int outLength = cipher.update(inBytes, 0, blockSize, outBytes);
out.write(outBytes, 0, outLength);
} else {
more = false;
}
}
// 如果最后一个输入数据块的字节数小于blockSize，剩下的字节将会自动填充
if (length > 0) {
outBytes = cipher.doFinal(inBytes, 0, length);
} else {
outBytes = cipher.doFinal();
}
out.write(outBytes);
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (GeneralSecurityException e) {
e.printStackTrace();
} finally {
Closer.close(in);
Closer.close(out);
Closer.close(keyin);
}
}
private byte[] fetchSymmetricKeyData(PGPPrivateKey privKey, Provider asymProvider)
throws PGPException {
Cipher c1 = getKeyCipher(keyData.getAlgorithm(), asymProvider);
try {
c1.init(Cipher.DECRYPT_MODE, privKey.getKey());
} catch (InvalidKeyException e) {
throw new PGPException("error setting asymmetric cipher", e);
}
BigInteger[] keyD = keyData.getEncSessionKey();
if (keyData.getAlgorithm() == PGPPublicKey.RSA_ENCRYPT
|| keyData.getAlgorithm() == PGPPublicKey.RSA_GENERAL) {
byte[] bi = keyD[0].toByteArray();
if (bi[0] == 0) {
c1.update(bi, 1, bi.length - 1);
} else {
c1.update(bi);
}
} else {
ElGamalKey k = (ElGamalKey) privKey.getKey();
int size = (k.getParameters().getP().bitLength() + 7) / 8;
byte[] tmp = new byte[size];
byte[] bi = keyD[0].toByteArray();
if (bi.length > size) {
c1.update(bi, 1, bi.length - 1);
} else {
System.arraycopy(bi, 0, tmp, tmp.length - bi.length, bi.length);
c1.update(tmp);
}
bi = keyD[1].toByteArray();
for (int i = 0; i != tmp.length; i++) {
tmp[i] = 0;
}
if (bi.length > size) {
c1.update(bi, 1, bi.length - 1);
} else {
System.arraycopy(bi, 0, tmp, tmp.length - bi.length, bi.length);
c1.update(tmp);
}
}
byte[] plain;
try {
plain = c1.doFinal();
} catch (Exception e) {
throw new PGPException("exception decrypting secret key", e);
}
if (!confirmCheckSum(plain)) {
throw new PGPKeyValidationException("key checksum failed");
}
return plain;
}
public void wrap(NextFilter nextFilter, WriteRequest writeRequest, IoBuffer buf)
throws AuthException {
int start = buf.position();
int len = buf.remaining() - LINE_TERMINATOR.length;
if (len == 0) throw new AuthException("Decryption failed");
// HMAC(Ki, {SeqNum, msg})[0..9]
byte[] originalMessage = new byte[len];
buf.get(originalMessage);
byte[] mac = AuthDigestMD5IoFilter.computeMACBlock(session, originalMessage, false);
// Calculate padding
int bs = encCipher.getBlockSize();
byte[] padding;
if (bs > 1) {
int pad = bs - ((len + 10) % bs); // add 10 for HMAC[0..9]
padding = new byte[pad];
for (int i = 0; i < pad; i++) padding[i] = (byte) pad;
} else padding = EMPTY_BYTE_ARRAY;
byte[] toBeEncrypted = new byte[len + padding.length + 10];
// {msg, pad, HMAC(Ki, {SeqNum, msg}[0..9])}
System.arraycopy(originalMessage, start, toBeEncrypted, 0, len);
System.arraycopy(padding, 0, toBeEncrypted, len, padding.length);
System.arraycopy(mac, 0, toBeEncrypted, len + padding.length, 10);
// CIPHER(Kc, {msg, pad, HMAC(Ki, {SeqNum, msg}[0..9])})
byte[] cipherBlock;
try {
// Do CBC (chaining) across packets
cipherBlock = encCipher.update(toBeEncrypted);
// update() can return null
if (cipherBlock == null) throw new IllegalBlockSizeException("" + toBeEncrypted.length);
} catch (IllegalBlockSizeException e) {
throw new AuthException("Invalid block size for cipher", e);
}
IoBuffer out = IoBuffer.allocate(cipherBlock.length + 2 + 4 + LINE_TERMINATOR.length);
out.put(cipherBlock);
out.put(mac, 10, 6); // messageType & sequenceNum
out.put(LINE_TERMINATOR);
out.flip();
if (out.limit()
> ((Integer) session.getAttribute(AuthDigestMD5Command.CLIENT_MAXBUF)).intValue())
throw new AuthException("Data exceeds client maxbuf capability");
nextFilter.filterWrite(session, new DefaultWriteRequest(out, writeRequest.getFuture()));
}
private static void crypt(InputStream input, OutputStream out, Cipher cipher)
throws IOException, ShortBufferException, IllegalBlockSizeException, BadPaddingException {
int blockSize = cipher.getBlockSize();
int outputSize = cipher.getOutputSize(blockSize);
int inLength;
byte[] inBytes = new byte[blockSize];
byte[] outBytes = new byte[outputSize];
while ((inLength = IOUtils.read(input, inBytes)) != 0) {
int outLength = cipher.update(inBytes, 0, inLength, outBytes);
out.write(outBytes, 0, outLength);
}
IOUtils.write(cipher.doFinal(), out);
}
/**
* Use the specified TripleDES key to decrypt bytes ready from the input stream and write them to
* the output stream. This method uses uses Cipher directly to show how it can be done without
* CipherInputStream and CipherOutputStream.
*/
public static void decrypt(SecretKey key, InputStream in, OutputStream out)
throws NoSuchAlgorithmException, InvalidKeyException, IOException, IllegalBlockSizeException,
NoSuchPaddingException, BadPaddingException {
// Create and initialize the decryption engine
Cipher cipher = Cipher.getInstance("DESede");
cipher.init(Cipher.DECRYPT_MODE, key);
// Read bytes, decrypt, and write them out.
byte[] buffer = new byte[2048];
int bytesRead;
while ((bytesRead = in.read(buffer)) != -1) {
out.write(cipher.update(buffer, 0, bytesRead));
}
// Write out the final bunch of decrypted bytes
out.write(cipher.doFinal());
out.flush();
}
private void Decryptor(byte[] cipherText) throws Exception {
byte[] keyBytes = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
SecretKeySpec key = new SecretKeySpec(keyBytes, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding", "BC");
int keySize = keyBytes.length;
int x = cipherText.length;
// decryption pass
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] plainText = new byte[cipher.getOutputSize(x)];
int ptLength = cipher.update(cipherText, 0, x, plainText, 0);
ptLength += cipher.doFinal(plainText, ptLength);
mTxtPlainText.setText(new String(plainText));
// mTxtPtLength.setText(String.valueOf(ptLength));
}
/**
* Decrypts a given byte stream using the AES cipher, CBC mode, and PKCS5 Padding algorithms.
*
* @param input - Bytes to be decrypted
* @param key - Symmetric key to decrypt
* @param iv - Initialization vector
* @return decrypted byte stream
* @throws NoSuchAlgorithmException
* @throws NoSuchPaddingException
* @throws InvalidKeyException
* @throws InvalidAlgorithmParameterException
* @throws ShortBufferException
* @throws IllegalBlockSizeException
* @throws BadPaddingException
* @throws UnsupportedEncodingException
*/
public static byte[] AESCBCdecrypt(byte[] input, Key key, byte[] iv)
throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException, ShortBufferException, IllegalBlockSizeException,
BadPaddingException, UnsupportedEncodingException {
int plaintext_len;
byte[] keyBytes, plaintext;
SecretKeySpec keySpec;
IvParameterSpec ivSpec;
Cipher cipher;
keyBytes = key.getBytes();
keySpec = new SecretKeySpec(keyBytes, "AES");
ivSpec = new IvParameterSpec(iv);
cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
plaintext = new byte[cipher.getOutputSize(input.length)];
plaintext_len = cipher.update(input, 0, input.length, plaintext, 0);
plaintext_len += cipher.doFinal(plaintext, plaintext_len);
return plaintext;
}
/**
* Uses a cipher to transform the bytes in an input stream and sends the transformed bytes to an
* output stream.
*
* @param in the input stream
* @param out the output stream
* @param cipher the cipher that transforms the bytes
*/
public static void crypt(InputStream in, OutputStream out, Cipher cipher)
throws IOException, GeneralSecurityException {
int blockSize = cipher.getBlockSize();
int outputSize = cipher.getOutputSize(blockSize);
byte[] inBytes = new byte[blockSize];
byte[] outBytes = new byte[outputSize];
int inLength = 0;
;
boolean more = true;
while (more) {
inLength = in.read(inBytes);
if (inLength == blockSize) {
int outLength = cipher.update(inBytes, 0, blockSize, outBytes);
out.write(outBytes, 0, outLength);
} else more = false;
}
if (inLength > 0) outBytes = cipher.doFinal(inBytes, 0, inLength);
else outBytes = cipher.doFinal();
out.write(outBytes);
}
@Override
public void handle(Address address, ByteBuffer buffer) {
if ((cipher == null) || (mac == null)) {
sequence++;
wrappee.handle(address, buffer);
return;
}
ByteBuffer sequenceBuffer = ByteBuffer.allocate(Ints.BYTES);
sequenceBuffer.putInt(sequence);
sequence++;
sequenceBuffer.flip();
mac.reset();
mac.update(sequenceBuffer);
int p = buffer.position();
mac.update(buffer);
buffer.position(p);
byte[] calculatedMac = new byte[mac.getMacLength()];
try {
mac.doFinal(calculatedMac, 0);
} catch (ShortBufferException e) {
throw new RuntimeException(e);
} catch (IllegalStateException e) {
throw new RuntimeException(e);
}
ByteBuffer b = ByteBuffer.allocate(buffer.remaining() + calculatedMac.length);
try {
cipher.update(buffer, b);
} catch (ShortBufferException e) {
throw new RuntimeException(e);
}
b.put(calculatedMac);
b.flip();
wrappee.handle(address, b);
}
/**
* Verify Bryan's public key.
*
* @param pubKey - public key received through TCP
* @param digest - signature received through TCP
* @return true if it is verified successfully; false otherwise
*/
public boolean verifyBryanPubKey(PublicKey pubKey, byte[] digest) {
try {
String bryanStr = "bryan";
MessageDigest md5 = MessageDigest.getInstance("MD5");
md5.update(bryanStr.getBytes(StandardCharsets.US_ASCII));
md5.update(pubKey.getEncoded());
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.DECRYPT_MODE, berisignPubKey);
cipher.update(digest);
byte[] bryanDigest = md5.digest();
byte[] berisignDigest = cipher.doFinal();
if (Arrays.equals(bryanDigest, berisignDigest)) {
this.bryanPubKey = pubKey;
} else {
return false;
}
} catch (NoSuchAlgorithmException e) {
System.out.println("Error: No algorithm entered exists.");
return false;
} catch (NoSuchPaddingException e) {
System.out.println("Error: transformation contains a padding scheme is not available.");
return false;
} catch (InvalidKeyException e) {
System.out.println("Error: the public key is invalid.");
return false;
} catch (IllegalBlockSizeException e) {
System.out.println("Error: the block size is invalid.");
return false;
} catch (BadPaddingException e) {
System.out.println("Error: decrypted data is not bounded by the valid padding bytes.");
return false;
}
return true;
}
/**
* 입력받은 스트림을 close 여부를 전달 받아 복호화 처리를 한다.
*
* @param in 입력 스트림
* @param out 출력 스트림
* @param isStreamClose close 여부
* @throws NoSuchAlgorithmException 암호화 알고리즘을 찾을 수 없을때 예외 처리
* @throws InvalidKeyException 규칙에 맞지 않은 key 일때 예외 처리
* @throws IOException 입/출력 예외 처리
* @throws IllegalBlockSizeException 규칙에 맞지 않은 블럭사이즈 일때 예외 처리
* @throws NoSuchPaddingException 패딩 정보를 찾을 수 없을때 예외 처리
* @throws BadPaddingException 잘못된 패딩 일때 예외처리
* @throws InvalidKeySpecException 규칙에 맞지 않은 keySpec 일때 예외 처리
* @throws InvalidAlgorithmParameterException 유효하지 않은 알고리즘 파라미터 일때 예외처리
*/
private void decrypt(InputStream in, OutputStream out, boolean isStreamClose)
throws NoSuchAlgorithmException, InvalidKeyException, IOException, IllegalBlockSizeException,
NoSuchPaddingException, BadPaddingException, InvalidKeySpecException,
InvalidAlgorithmParameterException {
Cipher cipher = Cipher.getInstance(jcrypto.getAlgorithm());
if (JCryptoHelper.isNecessaryIvBytes(this.jcrypto.getAlgorithm())) {
IvParameterSpec ivParameterSpec = new IvParameterSpec(JCryptoHelper.DEFAULT_IV_BYTES);
cipher.init(
Cipher.DECRYPT_MODE,
generateKey(
JCryptoHelper.getKeyAlgorithm(this.jcrypto.getAlgorithm()),
this.jcrypto.getAlgorithm(),
this.jcrypto.getKeyBytes()),
ivParameterSpec);
} else {
cipher.init(
Cipher.DECRYPT_MODE,
generateKey(
JCryptoHelper.getKeyAlgorithm(this.jcrypto.getAlgorithm()),
this.jcrypto.getAlgorithm(),
this.jcrypto.getKeyBytes()));
}
byte[] buffer = new byte[2048];
int bytesRead;
while ((bytesRead = in.read(buffer)) != -1) {
out.write(cipher.update(buffer, 0, bytesRead));
}
out.write(cipher.doFinal());
out.flush();
if (isStreamClose) {
in.close();
out.close();
}
}
private static void encrypt(
Cipher cipher,
int size,
ByteBuffer heapIn,
ByteBuffer heapOut,
ByteBuffer directIn,
ByteBuffer directOut,
boolean output)
throws Exception {
ByteBuffer inBB = null;
ByteBuffer outBB = null;
// Set up data and encrypt to known/expected values.
byte[] testdata = new byte[size];
random.nextBytes(testdata);
byte[] expected = cipher.doFinal(testdata);
for (TestVariant tv : TestVariant.values()) {
if (output) {
System.out.print(" " + tv);
}
switch (tv) {
case HEAP_HEAP:
inBB = heapIn;
outBB = heapOut;
break;
case HEAP_DIRECT:
inBB = heapIn;
outBB = directOut;
break;
case DIRECT_HEAP:
inBB = directIn;
outBB = heapOut;
break;
case DIRECT_DIRECT:
inBB = directIn;
outBB = directOut;
break;
}
inBB.clear();
outBB.clear();
inBB.put(testdata);
inBB.flip();
// Process all data in one shot, but don't call doFinal() yet.
// May store up to n-1 bytes (w/block size n) internally.
cipher.update(inBB, outBB);
if (inBB.hasRemaining()) {
throw new Exception("buffer not empty");
}
// finish encryption and process all data buffered
cipher.doFinal(inBB, outBB);
outBB.flip();
// validate output size
if (outBB.remaining() != expected.length) {
throw new Exception(
"incomplete encryption output, expected "
+ expected.length
+ " bytes but was only "
+ outBB.remaining()
+ " bytes");
}
// validate output data
byte[] encrypted = new byte[outBB.remaining()];
outBB.get(encrypted);
if (!Arrays.equals(expected, encrypted)) {
throw new Exception("bad encryption output");
}
if (!Arrays.equals(cipher.doFinal(), cipher.doFinal())) {
throw new Exception("Internal buffers still held data!");
}
}
}
public void prepare() {
try {
System.out.println(
"\nalgorithm="
+ algorithm
+ ", mode="
+ mode
+ ", paddingStr="
+ paddingStr
+ ", msgSize="
+ msgSize
+ ", keySize="
+ keySize
+ ", noReinit="
+ noReinit
+ ", checkOutput="
+ checkOutput
+ ", encInputOffset="
+ encInputOffset
+ ", encOutputOffset="
+ encOutputOffset
+ ", decOutputOffset="
+ decOutputOffset
+ ", lastChunkSize="
+ lastChunkSize);
if (encInputOffset % ALIGN != 0
|| encOutputOffset % ALIGN != 0
|| decOutputOffset % ALIGN != 0) testingMisalignment = true;
int keyLenBytes = (keySize == 0 ? 16 : keySize / 8);
byte keyBytes[] = new byte[keyLenBytes];
if (keySize == 128)
keyBytes = new byte[] {-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7};
else random.nextBytes(keyBytes);
key = new SecretKeySpec(keyBytes, algorithm);
if (threadId == 0) {
System.out.println(
"Algorithm: " + key.getAlgorithm() + "(" + key.getEncoded().length * 8 + "bit)");
}
cipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
dCipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
if (mode.equals("CBC")) {
int ivLen = (algorithm.equals("AES") ? 16 : algorithm.equals("DES") ? 8 : 0);
IvParameterSpec initVector = new IvParameterSpec(new byte[ivLen]);
cipher.init(Cipher.ENCRYPT_MODE, key, initVector);
} else {
algParams = cipher.getParameters();
cipher.init(Cipher.ENCRYPT_MODE, key, algParams);
}
algParams = cipher.getParameters();
dCipher.init(Cipher.DECRYPT_MODE, key, algParams);
if (threadId == 0) {
childShowCipher();
}
inputLength = msgSize + encInputOffset;
if (testingMisalignment) {
encodeLength = cipher.getOutputSize(msgSize - lastChunkSize) + encOutputOffset;
encodeLength += cipher.getOutputSize(lastChunkSize);
decodeLength = dCipher.getOutputSize(encodeLength - lastChunkSize) + decOutputOffset;
decodeLength += dCipher.getOutputSize(lastChunkSize);
} else {
encodeLength = cipher.getOutputSize(msgSize) + encOutputOffset;
decodeLength = dCipher.getOutputSize(encodeLength) + decOutputOffset;
}
input = new byte[inputLength];
for (int i = encInputOffset, j = 0; i < inputLength; i++, j++) {
input[i] = (byte) (j & 0xff);
}
// do one encode and decode in preparation
encode = new byte[encodeLength];
decode = new byte[decodeLength];
if (testingMisalignment) {
decodeMsgSize =
cipher.update(
input, encInputOffset, (msgSize - lastChunkSize), encode, encOutputOffset);
decodeMsgSize +=
cipher.doFinal(
input,
(encInputOffset + msgSize - lastChunkSize),
lastChunkSize,
encode,
(encOutputOffset + decodeMsgSize));
int tempSize =
dCipher.update(
encode, encOutputOffset, (decodeMsgSize - lastChunkSize), decode, decOutputOffset);
dCipher.doFinal(
encode,
(encOutputOffset + decodeMsgSize - lastChunkSize),
lastChunkSize,
decode,
(decOutputOffset + tempSize));
} else {
decodeMsgSize = cipher.doFinal(input, encInputOffset, msgSize, encode, encOutputOffset);
dCipher.doFinal(encode, encOutputOffset, decodeMsgSize, decode, decOutputOffset);
}
if (checkOutput) {
expectedEncode = (byte[]) encode.clone();
expectedDecode = (byte[]) decode.clone();
showArray(key.getEncoded(), "key: ");
showArray(input, "input: ");
showArray(encode, "encode: ");
showArray(decode, "decode: ");
}
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
}
private void testGP(int size, int privateValueSize, BigInteger g, BigInteger p) throws Exception {
DHParameterSpec elParams = new DHParameterSpec(p, g, privateValueSize);
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("ElGamal", "BC");
byte[] in = "This is a test".getBytes();
keyGen.initialize(elParams);
KeyPair keyPair = keyGen.generateKeyPair();
SecureRandom rand = new SecureRandom();
checkKeySize(privateValueSize, keyPair);
Cipher cipher = Cipher.getInstance("ElGamal", "BC");
cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
if (cipher.getOutputSize(in.length) != (size / 8) * 2) {
fail("getOutputSize wrong on encryption");
}
byte[] out = cipher.doFinal(in);
cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
if (cipher.getOutputSize(out.length) != (size / 8) - 1) {
fail("getOutputSize wrong on decryption");
}
//
// No Padding - maximum length
//
byte[] modBytes = ((DHPublicKey) keyPair.getPublic()).getParams().getP().toByteArray();
byte[] maxInput = new byte[modBytes.length - 1];
maxInput[0] |= 0x7f;
cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
out = cipher.doFinal(maxInput);
cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
out = cipher.doFinal(out);
if (!areEqual(out, maxInput)) {
fail(
"NoPadding test failed on decrypt expected "
+ new String(Hex.encode(maxInput))
+ " got "
+ new String(Hex.encode(out)));
}
//
// encrypt/decrypt
//
Cipher c1 = Cipher.getInstance("ElGamal", "BC");
Cipher c2 = Cipher.getInstance("ElGamal", "BC");
c1.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
byte[] out1 = c1.doFinal(in);
c2.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
byte[] out2 = c2.doFinal(out1);
if (!areEqual(in, out2)) {
fail(size + " encrypt test failed");
}
//
// encrypt/decrypt with update
//
int outLen = c1.update(in, 0, 2, out1, 0);
outLen += c1.doFinal(in, 2, in.length - 2, out1, outLen);
outLen = c2.update(out1, 0, 2, out2, 0);
outLen += c2.doFinal(out1, 2, out1.length - 2, out2, outLen);
if (!areEqual(in, out2)) {
fail(size + " encrypt with update test failed");
}
//
// public key encoding test
//
byte[] pubEnc = keyPair.getPublic().getEncoded();
KeyFactory keyFac = KeyFactory.getInstance("ElGamal", "BC");
X509EncodedKeySpec pubX509 = new X509EncodedKeySpec(pubEnc);
DHPublicKey pubKey = (DHPublicKey) keyFac.generatePublic(pubX509);
DHParameterSpec spec = pubKey.getParams();
if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP())) {
fail(size + " bit public key encoding/decoding test failed on parameters");
}
if (!((DHPublicKey) keyPair.getPublic()).getY().equals(pubKey.getY())) {
fail(size + " bit public key encoding/decoding test failed on y value");
}
//
// public key serialisation test
//
pubKey = (DHPublicKey) serializeDeserialize(keyPair.getPublic());
spec = pubKey.getParams();
if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP())) {
fail(size + " bit public key serialisation test failed on parameters");
}
if (!((DHPublicKey) keyPair.getPublic()).getY().equals(pubKey.getY())) {
fail(size + " bit public key serialisation test failed on y value");
}
if (!keyPair.getPublic().equals(pubKey)) {
fail("equals test failed");
}
if (keyPair.getPublic().hashCode() != pubKey.hashCode()) {
fail("hashCode test failed");
}
//
// private key encoding test
//
byte[] privEnc = keyPair.getPrivate().getEncoded();
PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
DHPrivateKey privKey = (DHPrivateKey) keyFac.generatePrivate(privPKCS8);
spec = privKey.getParams();
if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP())) {
fail(size + " bit private key encoding/decoding test failed on parameters");
}
if (!((DHPrivateKey) keyPair.getPrivate()).getX().equals(privKey.getX())) {
fail(size + " bit private key encoding/decoding test failed on y value");
}
//
// private key serialisation test
//
privKey = (DHPrivateKey) serializeDeserialize(keyPair.getPrivate());
spec = privKey.getParams();
if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP())) {
fail(size + " bit private key serialisation test failed on parameters");
}
if (!((DHPrivateKey) keyPair.getPrivate()).getX().equals(privKey.getX())) {
fail(size + " bit private key serialisation test failed on y value");
}
if (!keyPair.getPrivate().equals(privKey)) {
fail("equals test failed");
}
if (keyPair.getPrivate().hashCode() != privKey.hashCode()) {
fail("hashCode test failed");
}
if (!(privKey instanceof PKCS12BagAttributeCarrier)) {
fail("private key not implementing PKCS12 attribute carrier");
}
}
private void testDefault(int privateValueSize, BigInteger g, BigInteger p) throws Exception {
DHParameterSpec elParams = new DHParameterSpec(p, g, privateValueSize);
int size = p.bitLength();
new BouncyCastleProvider().setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, elParams);
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("ElGamal", "BC");
byte[] in = "This is a test".getBytes();
keyGen.initialize(p.bitLength());
KeyPair keyPair = keyGen.generateKeyPair();
new BouncyCastleProvider().setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, elParams);
SecureRandom rand = new SecureRandom();
checkKeySize(privateValueSize, keyPair);
Cipher cipher = Cipher.getInstance("ElGamal", "BC");
cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
if (cipher.getOutputSize(in.length) != (size / 8) * 2) {
fail("getOutputSize wrong on encryption");
}
byte[] out = cipher.doFinal(in);
cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
if (cipher.getOutputSize(out.length) != (size / 8) - 1) {
fail("getOutputSize wrong on decryption");
}
//
// No Padding - maximum length
//
byte[] modBytes = ((DHPublicKey) keyPair.getPublic()).getParams().getP().toByteArray();
byte[] maxInput = new byte[modBytes.length - 1];
maxInput[0] |= 0x7f;
cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
out = cipher.doFinal(maxInput);
cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
out = cipher.doFinal(out);
if (!areEqual(out, maxInput)) {
fail(
"NoPadding test failed on decrypt expected "
+ new String(Hex.encode(maxInput))
+ " got "
+ new String(Hex.encode(out)));
}
//
// encrypt/decrypt
//
Cipher c1 = Cipher.getInstance("ElGamal", "BC");
Cipher c2 = Cipher.getInstance("ElGamal", "BC");
c1.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
byte[] out1 = c1.doFinal(in);
c2.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
byte[] out2 = c2.doFinal(out1);
if (!areEqual(in, out2)) {
fail(size + " encrypt test failed");
}
//
// encrypt/decrypt with update
//
int outLen = c1.update(in, 0, 2, out1, 0);
outLen += c1.doFinal(in, 2, in.length - 2, out1, outLen);
outLen = c2.update(out1, 0, 2, out2, 0);
outLen += c2.doFinal(out1, 2, out1.length - 2, out2, outLen);
if (!areEqual(in, out2)) {
fail(size + " encrypt with update test failed");
}
//
// public key encoding test
//
byte[] pubEnc = keyPair.getPublic().getEncoded();
KeyFactory keyFac = KeyFactory.getInstance("ElGamal", "BC");
X509EncodedKeySpec pubX509 = new X509EncodedKeySpec(pubEnc);
DHPublicKey pubKey = (DHPublicKey) keyFac.generatePublic(pubX509);
DHParameterSpec spec = pubKey.getParams();
if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP())) {
fail(size + " bit public key encoding/decoding test failed on parameters");
}
if (!((DHPublicKey) keyPair.getPublic()).getY().equals(pubKey.getY())) {
fail(size + " bit public key encoding/decoding test failed on y value");
}
//
// public key serialisation test
//
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
ObjectOutputStream oOut = new ObjectOutputStream(bOut);
oOut.writeObject(keyPair.getPublic());
ByteArrayInputStream bIn = new ByteArrayInputStream(bOut.toByteArray());
ObjectInputStream oIn = new ObjectInputStream(bIn);
pubKey = (DHPublicKey) oIn.readObject();
spec = pubKey.getParams();
if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP())) {
fail(size + " bit public key serialisation test failed on parameters");
}
if (!((DHPublicKey) keyPair.getPublic()).getY().equals(pubKey.getY())) {
fail(size + " bit public key serialisation test failed on y value");
}
//
// private key encoding test
//
byte[] privEnc = keyPair.getPrivate().getEncoded();
PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
DHPrivateKey privKey = (DHPrivateKey) keyFac.generatePrivate(privPKCS8);
spec = privKey.getParams();
if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP())) {
fail(size + " bit private key encoding/decoding test failed on parameters");
}
if (!((DHPrivateKey) keyPair.getPrivate()).getX().equals(privKey.getX())) {
fail(size + " bit private key encoding/decoding test failed on y value");
}
//
// private key serialisation test
//
bOut = new ByteArrayOutputStream();
oOut = new ObjectOutputStream(bOut);
oOut.writeObject(keyPair.getPrivate());
bIn = new ByteArrayInputStream(bOut.toByteArray());
oIn = new ObjectInputStream(bIn);
privKey = (DHPrivateKey) oIn.readObject();
spec = privKey.getParams();
if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP())) {
fail(size + " bit private key serialisation test failed on parameters");
}
if (!((DHPrivateKey) keyPair.getPrivate()).getX().equals(privKey.getX())) {
fail(size + " bit private key serialisation test failed on y value");
}
}
public void unwrap(NextFilter nextFilter, IoBuffer buf) {
try {
int len = buf.remaining();
if (len == 0) throw new AuthException("Decryption failed");
byte[] encryptedMsg = new byte[len - 6];
byte[] msgType = new byte[2];
byte[] seqNum = new byte[4];
// Get cipherMsg; msgType; sequenceNum
buf.get(encryptedMsg);
buf.get(msgType);
buf.get(seqNum);
// Decrypt message - CIPHER(Kc, {msg, pad, HMAC(Ki, {SeqNum, msg}[0..9])})
byte[] decryptedMsg;
try {
// Do CBC (chaining) across packets
decryptedMsg = decCipher.update(encryptedMsg);
// update() can return null
if (decryptedMsg == null) throw new IllegalBlockSizeException("" + encryptedMsg.length);
} catch (IllegalBlockSizeException e) {
throw new AuthException("Illegal block sizes used with chosen cipher", e);
}
byte[] msgWithPadding = new byte[decryptedMsg.length - 10];
byte[] mac = new byte[10];
System.arraycopy(decryptedMsg, 0, msgWithPadding, 0, msgWithPadding.length);
System.arraycopy(decryptedMsg, msgWithPadding.length, mac, 0, 10);
int msgLength = msgWithPadding.length;
int blockSize = decCipher.getBlockSize();
if (blockSize > 1) {
// get value of last octet of the byte array
msgLength -= (int) msgWithPadding[msgWithPadding.length - 1];
if (msgLength < 0)
// Discard message and do not increment sequence number
throw new AuthException("Decryption failed");
}
byte[] msg = new byte[msgLength];
System.arraycopy(msgWithPadding, 0, msg, 0, msgLength);
// Re-calculate MAC to ensure integrity
byte[] expectedMac = AuthDigestMD5IoFilter.computeMACBlock(session, msg, true);
byte[] fullMac = new byte[16];
System.arraycopy(mac, 0, fullMac, 0, 10);
System.arraycopy(msgType, 0, fullMac, 10, 2);
System.arraycopy(seqNum, 0, fullMac, 12, 4);
if (isValidMAC(fullMac, expectedMac)) {
IoBuffer out = IoBuffer.allocate(msgLength + LINE_TERMINATOR.length);
out.put(msg);
out.put(LINE_TERMINATOR);
out.flip();
nextFilter.messageReceived(session, out);
}
} catch (Exception ex) {
log.debug(ex.getMessage());
nextFilter.messageReceived(session, "\r\n");
}
if (session instanceof AbstractIoSession)
((AbstractIoSession) session).increaseReadMessages(System.currentTimeMillis());
}
private void testException(String name) {
try {
byte[] key128 = {
(byte) 128, (byte) 131, (byte) 133, (byte) 134,
(byte) 137, (byte) 138, (byte) 140, (byte) 143,
(byte) 128, (byte) 131, (byte) 133, (byte) 134,
(byte) 137, (byte) 138, (byte) 140, (byte) 143
};
byte[] key256 = {
(byte) 128, (byte) 131, (byte) 133, (byte) 134,
(byte) 137, (byte) 138, (byte) 140, (byte) 143,
(byte) 128, (byte) 131, (byte) 133, (byte) 134,
(byte) 137, (byte) 138, (byte) 140, (byte) 143,
(byte) 128, (byte) 131, (byte) 133, (byte) 134,
(byte) 137, (byte) 138, (byte) 140, (byte) 143,
(byte) 128, (byte) 131, (byte) 133, (byte) 134,
(byte) 137, (byte) 138, (byte) 140, (byte) 143
};
byte[] keyBytes;
if (name.equals("HC256")) {
keyBytes = key256;
} else {
keyBytes = key128;
}
SecretKeySpec cipherKey = new SecretKeySpec(keyBytes, name);
Cipher ecipher = Cipher.getInstance(name, "BC");
ecipher.init(Cipher.ENCRYPT_MODE, cipherKey);
byte[] cipherText = new byte[0];
try {
// According specification Method engineUpdate(byte[] input,
// int inputOffset, int inputLen, byte[] output, int
// outputOffset)
// throws ShortBufferException - if the given output buffer is
// too
// small to hold the result
ecipher.update(new byte[20], 0, 20, cipherText);
fail("failed exception test - no ShortBufferException thrown");
} catch (ShortBufferException e) {
// ignore
}
try {
Cipher c = Cipher.getInstance(name, "BC");
Key k =
new PublicKey() {
public String getAlgorithm() {
return "STUB";
}
public String getFormat() {
return null;
}
public byte[] getEncoded() {
return null;
}
};
c.init(Cipher.ENCRYPT_MODE, k);
fail("failed exception test - no InvalidKeyException thrown for public key");
} catch (InvalidKeyException e) {
// okay
}
try {
Cipher c = Cipher.getInstance(name, "BC");
Key k =
new PrivateKey() {
public String getAlgorithm() {
return "STUB";
}
public String getFormat() {
return null;
}
public byte[] getEncoded() {
return null;
}
};
c.init(Cipher.DECRYPT_MODE, k);
fail("failed exception test - no InvalidKeyException thrown for private key");
} catch (InvalidKeyException e) {
// okay
}
} catch (Exception e) {
fail("unexpected exception.", e);
}
}
public void update(byte[] foo, int s1, int len, byte[] bar, int s2) throws Exception {
cipher.update(foo, s1, len, bar, s2);
}
public void performTest() throws Exception {
KeyFactory fact;
byte[] input =
new byte[] {
(byte) 0x54,
(byte) 0x85,
(byte) 0x9b,
(byte) 0x34,
(byte) 0x2c,
(byte) 0x49,
(byte) 0xea,
(byte) 0x2a
};
byte[][] output =
new byte[][] {
Hex.decode(
"8b427f781a2e59dd9def386f1956b996ee07f48c96880e65a368055ed8c0a8831669ef7250b40918b2b1d488547e72c84540e42bd07b03f14e226f04fbc2d929"),
Hex.decode(
"2ec6e1a1711b6c7b8cd3f6a25db21ab8bb0a5f1d6df2ef375fa708a43997730ffc7c98856dbbe36edddcdd1b2d2a53867d8355af94fea3aeec128da908e08f4c"),
Hex.decode(
"0850ac4e5a8118323200c8ed1e5aaa3d5e635172553ccac66a8e4153d35c79305c4440f11034ab147fccce21f18a50cf1c0099c08a577eb68237a91042278965"),
Hex.decode(
"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"),
Hex.decode(
"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"),
Hex.decode(
"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"),
Hex.decode(
"135f1be3d045526235bf9d5e43499d4ee1bfdf93370769ae56e85dbc339bc5b7ea3bee49717497ee8ac3f7cd6adb6fc0f17812390dcd65ac7b87fef7970d9ff9"),
Hex.decode(
"03c05add1e030178c352face07cafc9447c8f369b8f95125c0d311c16b6da48ca2067104cce6cd21ae7b163cd18ffc13001aecebdc2eb02b9e92681f84033a98"),
Hex.decode(
"00319bb9becb49f3ed1bca26d0fcf09b0b0a508e4d0bd43b350f959b72cd25b3af47d608fdcd248eada74fbe19990dbeb9bf0da4b4e1200243a14e5cab3f7e610c")
};
SecureRandom rand = new FixedSecureRandom();
fact = KeyFactory.getInstance("RSA", "BC");
PrivateKey privKey = fact.generatePrivate(privKeySpec);
PublicKey pubKey = fact.generatePublic(pubKeySpec);
PrivateKey priv2048Key = fact.generatePrivate(priv2048KeySpec);
PublicKey pub2048Key = fact.generatePublic(pub2048KeySpec);
//
// key without CRT coefficients
//
PrivateKeyInfo keyInfo = PrivateKeyInfo.getInstance(privKey.getEncoded());
BigInteger zero = BigInteger.valueOf(0);
PKCS8EncodedKeySpec noCrtSpec =
new PKCS8EncodedKeySpec(
new PrivateKeyInfo(
keyInfo.getPrivateKeyAlgorithm(),
new org.mightyfish.asn1.pkcs.RSAPrivateKey(
privKeySpec.getModulus(),
privKeySpec.getPublicExponent(),
privKeySpec.getPrivateExponent(),
zero,
zero,
zero,
zero,
zero))
.getEncoded());
PrivateKey noCrtKey = fact.generatePrivate(noCrtSpec);
if (noCrtKey instanceof RSAPrivateCrtKey) {
fail("private key without CRT coefficients returned as CRT key");
}
//
// No Padding
//
Cipher c = Cipher.getInstance("RSA", "BC");
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
byte[] out = c.doFinal(input);
if (!areEqual(out, output[0])) {
fail(
"NoPadding test failed on encrypt expected "
+ new String(Hex.encode(output[0]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"NoPadding test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
//
// No Padding - incremental
//
c = Cipher.getInstance("RSA", "BC");
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
c.update(input);
out = c.doFinal();
if (!areEqual(out, output[0])) {
fail(
"NoPadding test failed on encrypt expected "
+ new String(Hex.encode(output[0]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"NoPadding test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
//
// No Padding - incremental - explicit use of NONE in mode.
//
c = Cipher.getInstance("RSA/NONE/NoPadding", "BC");
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
c.update(input);
out = c.doFinal();
if (!areEqual(out, output[0])) {
fail(
"NoPadding test failed on encrypt expected "
+ new String(Hex.encode(output[0]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"NoPadding test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
//
// No Padding - maximum length
//
c = Cipher.getInstance("RSA", "BC");
byte[] modBytes = ((RSAPublicKey) pubKey).getModulus().toByteArray();
byte[] maxInput = new byte[modBytes.length - 1];
maxInput[0] |= 0x7f;
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
out = c.doFinal(maxInput);
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, maxInput)) {
fail(
"NoPadding test failed on decrypt expected "
+ new String(Hex.encode(maxInput))
+ " got "
+ new String(Hex.encode(out)));
}
//
// PKCS1 V 1.5
//
c = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
out = c.doFinal(input);
if (!areEqual(out, output[1])) {
fail(
"PKCS1 test failed on encrypt expected "
+ new String(Hex.encode(output[1]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"PKCS1 test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
//
// PKCS1 V 1.5 - NONE
//
c = Cipher.getInstance("RSA/NONE/PKCS1Padding", "BC");
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
out = c.doFinal(input);
if (!areEqual(out, output[1])) {
fail(
"PKCS1 test failed on encrypt expected "
+ new String(Hex.encode(output[1]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"PKCS1 test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
//
// OAEP - SHA1
//
c = Cipher.getInstance("RSA/NONE/OAEPPadding", "BC");
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
out = c.doFinal(input);
if (!areEqual(out, output[2])) {
fail(
"OAEP test failed on encrypt expected "
+ new String(Hex.encode(output[2]))
+ " got "
+ new String(Hex.encode(out)));
}
c = Cipher.getInstance("RSA/NONE/OAEPWithSHA1AndMGF1Padding", "BC");
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"OAEP test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
AlgorithmParameters oaepP = c.getParameters();
if (!areEqual(
oaepP.getEncoded(),
new RSAESOAEPparams(
new AlgorithmIdentifier(OIWObjectIdentifiers.idSHA1, DERNull.INSTANCE),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_mgf1,
new AlgorithmIdentifier(OIWObjectIdentifiers.idSHA1, DERNull.INSTANCE)),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_pSpecified, new DEROctetString(new byte[0])))
.getEncoded())) {
fail("OAEP test failed default sha-1 parameters");
}
//
// OAEP - SHA224
//
c = Cipher.getInstance("RSA/NONE/OAEPWithSHA224AndMGF1Padding", "BC");
c.init(Cipher.ENCRYPT_MODE, pub2048Key, rand);
out = c.doFinal(input);
if (!areEqual(out, output[3])) {
fail(
"OAEP SHA-224 test failed on encrypt expected "
+ new String(Hex.encode(output[2]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, priv2048Key);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"OAEP SHA-224 test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
oaepP = c.getParameters();
if (!areEqual(
oaepP.getEncoded(),
new RSAESOAEPparams(
new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha224, DERNull.INSTANCE),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_mgf1,
new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha224, DERNull.INSTANCE)),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_pSpecified, new DEROctetString(new byte[0])))
.getEncoded())) {
fail("OAEP test failed default sha-224 parameters");
}
//
// OAEP - SHA 256
//
c = Cipher.getInstance("RSA/NONE/OAEPWithSHA256AndMGF1Padding", "BC");
c.init(Cipher.ENCRYPT_MODE, pub2048Key, rand);
out = c.doFinal(input);
if (!areEqual(out, output[4])) {
fail(
"OAEP SHA-256 test failed on encrypt expected "
+ new String(Hex.encode(output[2]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, priv2048Key);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"OAEP SHA-256 test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
oaepP = c.getParameters();
if (!areEqual(
oaepP.getEncoded(),
new RSAESOAEPparams(
new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256, DERNull.INSTANCE),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_mgf1,
new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256, DERNull.INSTANCE)),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_pSpecified, new DEROctetString(new byte[0])))
.getEncoded())) {
fail("OAEP test failed default sha-256 parameters");
}
//
// OAEP - SHA 384
//
c = Cipher.getInstance("RSA/NONE/OAEPWithSHA384AndMGF1Padding", "BC");
c.init(Cipher.ENCRYPT_MODE, pub2048Key, rand);
out = c.doFinal(input);
if (!areEqual(out, output[5])) {
fail(
"OAEP SHA-384 test failed on encrypt expected "
+ new String(Hex.encode(output[2]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, priv2048Key);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"OAEP SHA-384 test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
oaepP = c.getParameters();
if (!areEqual(
oaepP.getEncoded(),
new RSAESOAEPparams(
new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha384, DERNull.INSTANCE),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_mgf1,
new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha384, DERNull.INSTANCE)),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_pSpecified, new DEROctetString(new byte[0])))
.getEncoded())) {
fail("OAEP test failed default sha-384 parameters");
}
//
// OAEP - MD5
//
c = Cipher.getInstance("RSA/NONE/OAEPWithMD5AndMGF1Padding", "BC");
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
out = c.doFinal(input);
if (!areEqual(out, output[6])) {
fail(
"OAEP MD5 test failed on encrypt expected "
+ new String(Hex.encode(output[2]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"OAEP MD5 test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
oaepP = c.getParameters();
if (!areEqual(
oaepP.getEncoded(),
new RSAESOAEPparams(
new AlgorithmIdentifier(PKCSObjectIdentifiers.md5, DERNull.INSTANCE),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_mgf1,
new AlgorithmIdentifier(PKCSObjectIdentifiers.md5, DERNull.INSTANCE)),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_pSpecified, new DEROctetString(new byte[0])))
.getEncoded())) {
fail("OAEP test failed default md5 parameters");
}
//
// OAEP - SHA1 with default parameters
//
c = Cipher.getInstance("RSA/NONE/OAEPPadding", "BC");
c.init(Cipher.ENCRYPT_MODE, pubKey, OAEPParameterSpec.DEFAULT, rand);
out = c.doFinal(input);
if (!areEqual(out, output[2])) {
fail(
"OAEP test failed on encrypt expected "
+ new String(Hex.encode(output[2]))
+ " got "
+ new String(Hex.encode(out)));
}
c = Cipher.getInstance("RSA/NONE/OAEPWithSHA1AndMGF1Padding", "BC");
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"OAEP test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
oaepP = c.getParameters();
if (!areEqual(oaepP.getEncoded(), new byte[] {0x30, 0x00})) {
fail("OAEP test failed default parameters");
}
//
// OAEP - SHA1 with specified string
//
c = Cipher.getInstance("RSA/NONE/OAEPPadding", "BC");
c.init(
Cipher.ENCRYPT_MODE,
pubKey,
new OAEPParameterSpec(
"SHA1",
"MGF1",
new MGF1ParameterSpec("SHA1"),
new PSource.PSpecified(new byte[] {1, 2, 3, 4, 5})),
rand);
out = c.doFinal(input);
oaepP = c.getParameters();
if (!areEqual(
oaepP.getEncoded(),
new RSAESOAEPparams(
new AlgorithmIdentifier(OIWObjectIdentifiers.idSHA1, DERNull.INSTANCE),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_mgf1,
new AlgorithmIdentifier(OIWObjectIdentifiers.idSHA1, DERNull.INSTANCE)),
new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_pSpecified,
new DEROctetString(new byte[] {1, 2, 3, 4, 5})))
.getEncoded())) {
fail("OAEP test failed changed sha-1 parameters");
}
if (!areEqual(out, output[7])) {
fail(
"OAEP test failed on encrypt expected "
+ new String(Hex.encode(output[2]))
+ " got "
+ new String(Hex.encode(out)));
}
c = Cipher.getInstance("RSA/NONE/OAEPWithSHA1AndMGF1Padding", "BC");
c.init(Cipher.DECRYPT_MODE, privKey, oaepP);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"OAEP test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
//
// ISO9796-1
//
byte[] isoInput =
Hex.decode("fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210");
PrivateKey isoPrivKey = fact.generatePrivate(isoPrivKeySpec);
PublicKey isoPubKey = fact.generatePublic(isoPubKeySpec);
c = Cipher.getInstance("RSA/NONE/ISO9796-1Padding", "BC");
c.init(Cipher.ENCRYPT_MODE, isoPrivKey);
out = c.doFinal(isoInput);
if (!areEqual(out, output[8])) {
fail(
"ISO9796-1 test failed on encrypt expected "
+ new String(Hex.encode(output[3]))
+ " got "
+ new String(Hex.encode(out)));
}
c.init(Cipher.DECRYPT_MODE, isoPubKey);
out = c.doFinal(out);
if (!areEqual(out, isoInput)) {
fail(
"ISO9796-1 test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
//
//
// generation with parameters test.
//
KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA", "BC");
//
// 768 bit RSA with e = 2^16-1
//
keyPairGen.initialize(
new RSAKeyGenParameterSpec(768, BigInteger.valueOf(65537)), new SecureRandom());
KeyPair kp = keyPairGen.generateKeyPair();
pubKey = kp.getPublic();
privKey = kp.getPrivate();
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
out = c.doFinal(input);
c.init(Cipher.DECRYPT_MODE, privKey);
out = c.doFinal(out);
if (!areEqual(out, input)) {
fail(
"key generation test failed on decrypt expected "
+ new String(Hex.encode(input))
+ " got "
+ new String(Hex.encode(out)));
}
//
// comparison check
//
KeyFactory keyFact = KeyFactory.getInstance("RSA", "BC");
RSAPrivateCrtKey crtKey = (RSAPrivateCrtKey) keyFact.translateKey(privKey);
if (!privKey.equals(crtKey)) {
fail("private key equality check failed");
}
crtKey =
(RSAPrivateCrtKey) keyFact.generatePrivate(new PKCS8EncodedKeySpec(privKey.getEncoded()));
if (!privKey.equals(crtKey)) {
fail("private key equality check failed");
}
crtKey = (RSAPrivateCrtKey) serializeDeserialize(privKey);
if (!privKey.equals(crtKey)) {
fail("private key equality check failed");
}
if (privKey.hashCode() != crtKey.hashCode()) {
fail("private key hashCode check failed");
}
RSAPublicKey copyKey = (RSAPublicKey) keyFact.translateKey(pubKey);
if (!pubKey.equals(copyKey)) {
fail("public key equality check failed");
}
copyKey = (RSAPublicKey) keyFact.generatePublic(new X509EncodedKeySpec(pubKey.getEncoded()));
if (!pubKey.equals(copyKey)) {
fail("public key equality check failed");
}
copyKey = (RSAPublicKey) serializeDeserialize(pubKey);
if (!pubKey.equals(copyKey)) {
fail("public key equality check failed");
}
if (pubKey.hashCode() != copyKey.hashCode()) {
fail("public key hashCode check failed");
}
//
// test an OAEP key
//
SubjectPublicKeyInfo oaepKey =
new SubjectPublicKeyInfo(
new AlgorithmIdentifier(PKCSObjectIdentifiers.id_RSAES_OAEP, new RSAESOAEPparams()),
SubjectPublicKeyInfo.getInstance(pubKey.getEncoded()).parsePublicKey());
copyKey =
(RSAPublicKey)
serializeDeserialize(
keyFact.generatePublic(new X509EncodedKeySpec(oaepKey.getEncoded())));
if (!pubKey.equals(copyKey)) {
fail("public key equality check failed");
}
if (pubKey.hashCode() != copyKey.hashCode()) {
fail("public key hashCode check failed");
}
if (!Arrays.areEqual(copyKey.getEncoded(), oaepKey.getEncoded())) {
fail("encoding does not match");
}
oaepCompatibilityTest("SHA-1", priv2048Key, pub2048Key);
// TODO: oaepCompatibilityTest("SHA-224", priv2048Key, pub2048Key); commented out as fails
// in JDK 1.7
oaepCompatibilityTest("SHA-256", priv2048Key, pub2048Key);
oaepCompatibilityTest("SHA-384", priv2048Key, pub2048Key);
oaepCompatibilityTest("SHA-512", priv2048Key, pub2048Key);
SecureRandom random = new SecureRandom();
rawModeTest("SHA1withRSA", X509ObjectIdentifiers.id_SHA1, priv2048Key, pub2048Key, random);
rawModeTest("MD5withRSA", PKCSObjectIdentifiers.md5, priv2048Key, pub2048Key, random);
rawModeTest(
"RIPEMD128withRSA", TeleTrusTObjectIdentifiers.ripemd128, priv2048Key, pub2048Key, random);
// init reset test
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
out = c.update(new byte[40]);
c.init(Cipher.ENCRYPT_MODE, pubKey, rand);
out = c.update(new byte[40]);
}
public static Message decode(Session session, String text) {
Logger logger = LoggerFactory.getLogger(KrakenMessageDecoder.class.getName());
Charset utf8 = Charset.forName("utf-8");
// remove potential control characters
text = text.trim();
if (text.length() == 0) return null;
if (logger.isDebugEnabled())
logger.debug(
"kraken webconsole: debug websocket frame length {}, json [{}]", text.length(), text);
if (text.equals("ping")) return null;
// decrypt if msg is encrypted
if (session.has("enc_key")) {
try {
JSONTokener tokenizer = new JSONTokener(new StringReader(text));
JSONArray container = (JSONArray) tokenizer.nextValue();
JSONObject header = container.getJSONObject(0);
JSONObject body = container.getJSONObject(1);
if (header.has("iv") && body.has("data")) {
String data = body.getString("data");
byte[] iv =
ByteUtil.asArray(
Base64.decode(ChannelBuffers.wrappedBuffer(header.getString("iv").getBytes())));
byte[] buf =
ByteUtil.asArray(Base64.decode(ChannelBuffers.wrappedBuffer(data.getBytes())));
byte[] key = ByteUtil.asByteArray(UUID.fromString(session.getString("enc_key")));
SecretKeySpec secret = new SecretKeySpec(key, "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
cipher.init(Cipher.DECRYPT_MODE, secret, new IvParameterSpec(iv));
byte[] plain = new byte[cipher.getOutputSize(buf.length)];
int plainLength = cipher.update(buf, 0, buf.length, plain, 0);
plainLength += cipher.doFinal(plain, plainLength);
text = new String(plain, 0, plainLength, utf8);
logger.trace("kraken webconsole: decrypted msg [{}]", text);
}
} catch (Exception e) {
logger.error("kraken webconsole: cannot decode encrypted msg [" + text + "]", e);
}
}
try {
JSONTokener tokenizer = new JSONTokener(new StringReader(text));
JSONArray container = (JSONArray) tokenizer.nextValue();
JSONObject header = container.getJSONObject(0);
JSONObject body = container.getJSONObject(1);
Message msg = new Message();
msg.setGuid(header.getString("guid").trim());
msg.setType(Message.Type.valueOf(header.getString("type").trim()));
msg.setSource(header.getString("source"));
msg.setTarget(header.getString("target"));
msg.setMethod(header.getString("method").trim());
msg.setParameters(parse(body));
return msg;
} catch (JSONException e) {
logger.error("kraken webconsole: invalid json => " + text, e);
}
return null;
}