public byte[] new_decrypt_cn(E_CODE paramE_CODE, byte[] paramArrayOfByte)
throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeySpecException,
InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
byte[] localObject = null;
if (paramE_CODE == E_CODE.RSA) {
if (rsa_key.length() > 2) {
Cipher localCipher;
byte[] arrayOfByte = new byte[0];
// PublicKey localPublicKey = KeyFactory.getInstance("RSA").generatePublic(new
// X509EncodedKeySpec(Base64.decodeBase64(rsa_key)));
PublicKey localPublicKey =
KeyFactory.getInstance("RSA")
.generatePublic(new X509EncodedKeySpec(Base64.decode(rsa_key, Base64.DEFAULT)));
System.out.println("key length-" + (Base64.decode(rsa_key, Base64.DEFAULT)).length);
System.out.println("data length-" + paramArrayOfByte.length);
localCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
localCipher.init(Cipher.DECRYPT_MODE, localPublicKey);
// localCipher.init(Cipher.ENCRYPT_MODE, localPublicKey);
arrayOfByte = localCipher.doFinal(paramArrayOfByte);
// int oldLength;
// for (int i = 0; i < paramArrayOfByte.length; i += 8) {
// byte[] temp = localCipher.doFinal(paramArrayOfByte, i, i + 8);
// oldLength = arrayOfByte.length;
// arrayOfByte = Arrays.copyOf(arrayOfByte, temp.length+arrayOfByte.length);
// System.arraycopy(temp, 0, arrayOfByte, oldLength, temp.length);
// }
// arrayOfByte = paramArrayOfByte;
return arrayOfByte;
}
} else if (paramE_CODE == E_CODE.RSA_EP) {
if (rsa_ep_key.length() >= 2) {
// PrivateKey localPrivateKey = KeyFactory.getInstance("RSA").generatePrivate(new
// PKCS8EncodedKeySpec(Base64.decodeBase64(rsa_ep_key)));
PrivateKey localPrivateKey =
KeyFactory.getInstance("RSA")
.generatePrivate(
new PKCS8EncodedKeySpec(Base64.decode(rsa_ep_key, Base64.DEFAULT)));
Cipher localCipher2 = Cipher.getInstance("RSA/ECB/PKCS1Padding");
localCipher2.init(2, localPrivateKey);
localObject = localCipher2.doFinal(paramArrayOfByte);
}
} else if (paramE_CODE == E_CODE.AES) {
// SecretKeySpec localSecretKeySpec = new
// SecretKeySpec(Base64.decodeBase64(aes_key.getBytes()), "AES");
// byte[] arrayOfByte1 = Base64.decodeBase64(paramArrayOfByte);
SecretKeySpec localSecretKeySpec =
new SecretKeySpec(Base64.decode(aes_key.getBytes(), Base64.DEFAULT), "AES");
byte[] arrayOfByte1 = Base64.decode(paramArrayOfByte, Base64.DEFAULT);
Cipher localCipher1 = Cipher.getInstance("AES/ECB/PKCS5Padding");
localCipher1.init(Cipher.DECRYPT_MODE, localSecretKeySpec);
byte[] arrayOfByte2 = localCipher1.doFinal(arrayOfByte1);
localObject = arrayOfByte2;
}
return localObject;
}
/**
* Initialises the Ciphers for both encryption and decryption using the generated or supplied
* secret key.
*
* @param algorithm
* @param secret
* @throws Exception
*/
private void initSymCiphers(String algorithm, SecretKey secret) throws Exception {
log.debug("initializing symmetric ciphers (pool size=%d)", cipher_pool_size);
for (int i = 0; i < cipher_pool_size; i++) {
encoding_ciphers[i] =
symProvider != null && !symProvider.trim().isEmpty()
? Cipher.getInstance(algorithm, symProvider)
: Cipher.getInstance(algorithm);
encoding_ciphers[i].init(Cipher.ENCRYPT_MODE, secret);
decoding_ciphers[i] =
symProvider != null && !symProvider.trim().isEmpty()
? Cipher.getInstance(algorithm, symProvider)
: Cipher.getInstance(algorithm);
decoding_ciphers[i].init(Cipher.DECRYPT_MODE, secret);
encoding_locks[i] = new ReentrantLock();
decoding_locks[i] = new ReentrantLock();
}
// set the version
MessageDigest digest = MessageDigest.getInstance("MD5");
digest.reset();
digest.update(secret.getEncoded());
byte[] tmp = digest.digest();
symVersion = Arrays.copyOf(tmp, tmp.length);
// symVersion = byteArrayToHexString(digest.digest());
log.debug("initialized symmetric ciphers with secret key (" + symVersion.length + " bytes)");
}
public Crypto(String passPhrase) throws Exception {
set = new HashSet<Point>();
random = new Random();
for (int i = 0; i < 10; i++) {
point = new Point(random.nextInt(1000), random.nextInt(2000));
set.add(point);
}
last = random.nextInt(5000);
try {
// Create Key
// byte key[] = passPhrase.getBytes();
ois = new ObjectInputStream(new FileInputStream("keyfile"));
DESKeySpec desKeySpec = new DESKeySpec((byte[]) ois.readObject());
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
// Create Cipher
eCipher = Cipher.getInstance("DES/CFB8/NoPadding");
dCipher = Cipher.getInstance("DES/CFB8/NoPadding");
// Create the ciphers
eCipher.init(Cipher.ENCRYPT_MODE, secretKey);
dCipher.init(Cipher.DECRYPT_MODE, secretKey, new IvParameterSpec((byte[]) ois.readObject()));
} catch (javax.crypto.NoSuchPaddingException e) {
e.printStackTrace();
} catch (java.security.NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (java.security.InvalidKeyException e) {
e.printStackTrace();
}
}
EncryptStrings(String passPhrase) {
try {
// Create the key
KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterationCount);
SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
ecipher = Cipher.getInstance(key.getAlgorithm());
dcipher = Cipher.getInstance(key.getAlgorithm());
// Prepare the parameter to the ciphers
AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);
// Create the ciphers
ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
System.out.println(ecipher.doFinal());
} catch (java.security.InvalidAlgorithmParameterException e) {
} catch (java.security.spec.InvalidKeySpecException e) {
} catch (javax.crypto.NoSuchPaddingException e) {
} catch (java.security.NoSuchAlgorithmException e) {
} catch (java.security.InvalidKeyException e) {
} catch (IllegalBlockSizeException ex) {
Logger.getLogger(EncryptStrings.class.getName()).log(Level.SEVERE, null, ex);
} catch (BadPaddingException ex) {
Logger.getLogger(EncryptStrings.class.getName()).log(Level.SEVERE, null, ex);
}
}
/**
* Encrypts a symmetric key using the provided encryption materials and returns it in raw byte
* array form.
*
* @deprecated no longer used and will be removed in the future
*/
@Deprecated
public static byte[] getEncryptedSymmetricKey(
SecretKey toBeEncrypted, EncryptionMaterials materials, Provider cryptoProvider) {
Key keyToDoEncryption;
if (materials.getKeyPair() != null) {
// Do envelope encryption with public key from key pair
keyToDoEncryption = materials.getKeyPair().getPublic();
} else {
// Do envelope encryption with symmetric key
keyToDoEncryption = materials.getSymmetricKey();
}
try {
Cipher cipher;
byte[] toBeEncryptedBytes = toBeEncrypted.getEncoded();
if (cryptoProvider != null) {
cipher = Cipher.getInstance(keyToDoEncryption.getAlgorithm(), cryptoProvider);
} else {
cipher = Cipher.getInstance(keyToDoEncryption.getAlgorithm()); // Use default JCE Provider
}
cipher.init(Cipher.ENCRYPT_MODE, keyToDoEncryption);
return cipher.doFinal(toBeEncryptedBytes);
} catch (Exception e) {
throw new AmazonClientException("Unable to encrypt symmetric key: " + e.getMessage(), e);
}
}
private void oidTest() {
String[] oids = {
CryptoProObjectIdentifiers.gostR28147_gcfb.getId(),
};
String[] names = {"GOST28147/GCFB/NoPadding"};
try {
byte[] data = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
IvParameterSpec ivSpec = new IvParameterSpec(new byte[8]);
for (int i = 0; i != oids.length; i++) {
Cipher c1 = Cipher.getInstance(oids[i], "BC");
Cipher c2 = Cipher.getInstance(names[i], "BC");
KeyGenerator kg = KeyGenerator.getInstance(oids[i], "BC");
SecretKey k = kg.generateKey();
c1.init(Cipher.ENCRYPT_MODE, k, ivSpec);
c2.init(Cipher.DECRYPT_MODE, k, ivSpec);
byte[] result = c2.doFinal(c1.doFinal(data));
if (!areEqual(data, result)) {
fail("failed OID test");
}
}
} catch (Exception ex) {
fail("failed exception " + ex.toString(), ex);
}
}
/**
* Defautl constructor for creating a DES encrypt/decryption mechanism.
*
* @param passPhrase
*/
private claves(String passPhrase) {
try {
// Create the key
KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), SALT, iterationCount);
SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
enryptCipher = Cipher.getInstance(key.getAlgorithm());
decriptCipher = Cipher.getInstance(key.getAlgorithm());
// Prepare the parameter to the ciphers
AlgorithmParameterSpec paramSpec = new PBEParameterSpec(SALT, iterationCount);
// Create the ciphers
enryptCipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
decriptCipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
} catch (java.security.InvalidAlgorithmParameterException e) {
encrypter = null;
} catch (java.security.spec.InvalidKeySpecException e) {
encrypter = null;
} catch (javax.crypto.NoSuchPaddingException e) {
encrypter = null;
} catch (java.security.NoSuchAlgorithmException e) {
encrypter = null;
} catch (java.security.InvalidKeyException e) {
encrypter = null;
}
}
private void testAlgorithm(
String name, byte[] keyBytes, byte[] iv, byte[] plainText, byte[] cipherText)
throws Exception {
SecretKey key = new SecretKeySpec(keyBytes, name);
Cipher in = Cipher.getInstance(name, "BC");
Cipher out = Cipher.getInstance(name, "BC");
if (iv != null) {
in.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(iv));
out.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(iv));
} else {
in.init(Cipher.ENCRYPT_MODE, key);
out.init(Cipher.DECRYPT_MODE, key);
}
byte[] enc = in.doFinal(plainText);
if (!areEqual(enc, cipherText)) {
fail(name + ": cipher text doesn't match");
}
byte[] dec = out.doFinal(enc);
if (!areEqual(dec, plainText)) {
fail(name + ": plain text doesn't match");
}
}
/**
* AES decrypt function
*
* @param encrypted
* @param key 16, 24, 32 bytes available
* @param iv initial vector (16 bytes) - if null: ECB mode, otherwise: CBC mode
* @return
*/
public static byte[] decrypt(final byte[] encrypted, final byte[] key, final byte[] iv) {
if ((key == null) || ((key.length != 16) && (key.length != 24) && (key.length != 32))) {
return null;
}
if ((iv != null) && (iv.length != 16)) {
return null;
}
try {
SecretKeySpec keySpec = null;
Cipher cipher = null;
if (iv != null) {
keySpec = new SecretKeySpec(key, "AES/CBC/PKCS7Padding"); // AES/ECB/PKCS5Padding
cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
cipher.init(Cipher.DECRYPT_MODE, keySpec, new IvParameterSpec(iv));
} else // if(iv == null)
{
keySpec = new SecretKeySpec(key, "AES/ECB/PKCS7Padding");
cipher = Cipher.getInstance("AES/ECB/PKCS7Padding");
cipher.init(Cipher.DECRYPT_MODE, keySpec);
}
return cipher.doFinal(encrypted);
} catch (final Exception e) {
e.printStackTrace();
}
return null;
}
/**
* Decrypts an encrypted symmetric key using the provided encryption materials and returns it as a
* SecretKey object.
*
* @deprecated no longer used and will be removed in the future
*/
@Deprecated
private static SecretKey getDecryptedSymmetricKey(
byte[] encryptedSymmetricKeyBytes, EncryptionMaterials materials, Provider cryptoProvider) {
Key keyToDoDecryption;
if (materials.getKeyPair() != null) {
// Do envelope decryption with private key from key pair
keyToDoDecryption = materials.getKeyPair().getPrivate();
} else {
// Do envelope decryption with symmetric key
keyToDoDecryption = materials.getSymmetricKey();
}
try {
Cipher cipher;
if (cryptoProvider != null) {
cipher = Cipher.getInstance(keyToDoDecryption.getAlgorithm(), cryptoProvider);
} else {
cipher = Cipher.getInstance(keyToDoDecryption.getAlgorithm());
}
cipher.init(Cipher.DECRYPT_MODE, keyToDoDecryption);
byte[] decryptedSymmetricKeyBytes = cipher.doFinal(encryptedSymmetricKeyBytes);
return new SecretKeySpec(
decryptedSymmetricKeyBytes, JceEncryptionConstants.SYMMETRIC_KEY_ALGORITHM);
} catch (Exception e) {
throw new AmazonClientException(
"Unable to decrypt symmetric key from object metadata : " + e.getMessage(), e);
}
}
/**
* Creates a symmetric cipher in the specified mode from the given symmetric key and IV. The given
* crypto provider will provide the encryption implementation. If the crypto provider is null,
* then the default JCE crypto provider will be used.
*
* @deprecated no longer used and will be removed in the future
*/
@Deprecated
public static Cipher createSymmetricCipher(
SecretKey symmetricCryptoKey, int encryptMode, Provider cryptoProvider, byte[] initVector) {
try {
Cipher cipher;
if (cryptoProvider != null) {
cipher = Cipher.getInstance(JceEncryptionConstants.SYMMETRIC_CIPHER_METHOD, cryptoProvider);
} else {
cipher = Cipher.getInstance(JceEncryptionConstants.SYMMETRIC_CIPHER_METHOD);
}
if (initVector != null) {
cipher.init(encryptMode, symmetricCryptoKey, new IvParameterSpec(initVector));
} else {
cipher.init(encryptMode, symmetricCryptoKey);
}
return cipher;
} catch (Exception e) {
throw new AmazonClientException(
"Unable to build cipher: "
+ e.getMessage()
+ "\nMake sure you have the JCE unlimited strength policy files installed and "
+ "configured for your JVM: http://www.ngs.ac.uk/tools/jcepolicyfiles",
e);
}
}
private DESedeEncryptor() {
try {
// 检测是否有 TripleDES 加密的供应程序
// 如无，明确地安装SunJCE 供应程序
try {
Cipher.getInstance(DESEDE);
} catch (Exception e) {
logger.error("Installling SunJCE provider.");
Provider sunjce = new com.sun.crypto.provider.SunJCE();
Security.addProvider(sunjce);
}
// 得到 DESSede keys
keyFactory = SecretKeyFactory.getInstance(DESEDE);
// 创建一个 DESede 密码
encryptCipher = Cipher.getInstance(DESEDE);
decryptCipher = Cipher.getInstance(DESEDE);
// 为 CBC 模式创建一个用于初始化的 vector 对象
// IvParameters = new IvParameterSpec(new byte[] { 12, 34, 56,
// 78, 90,
// 87, 65, 43 });
} catch (Exception e) {
// 记录加密或解密操作错误
logger.error("It's not support DESede encrypt arithmetic in this system!", e);
}
}
private void testCipherNameWithWrap(String name, String simpleName) throws Exception {
KeyGenerator kg = KeyGenerator.getInstance("AES");
kg.init(new SecureRandom());
SecretKey key = kg.generateKey();
byte[] salt = {
(byte) 0xc7, (byte) 0x73, (byte) 0x21, (byte) 0x8c,
(byte) 0x7e, (byte) 0xc8, (byte) 0xee, (byte) 0x99
};
char[] password = {'p', 'a', 's', 's', 'w', 'o', 'r', 'd'};
PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 20);
PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
SecretKeyFactory keyFac = SecretKeyFactory.getInstance(name);
SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);
Cipher pbeEncryptCipher = Cipher.getInstance(name, "SC");
pbeEncryptCipher.init(Cipher.WRAP_MODE, pbeKey, pbeParamSpec);
byte[] symKeyBytes = pbeEncryptCipher.wrap(key);
Cipher simpleCipher = Cipher.getInstance(simpleName, "SC");
simpleCipher.init(Cipher.UNWRAP_MODE, pbeKey, pbeParamSpec);
SecretKey unwrappedKey = (SecretKey) simpleCipher.unwrap(symKeyBytes, "AES", Cipher.SECRET_KEY);
if (!Arrays.areEqual(unwrappedKey.getEncoded(), key.getEncoded())) {
fail("key mismatch on unwrapping");
}
}
/**
* 指定密钥构造方法
*
* @param strKey 指定的密钥
* @throws Exception
*/
public CryptUtil(String strKey) throws Exception {
Key key = getKey(strKey.getBytes());
encryptCipher = Cipher.getInstance("DES");
encryptCipher.init(Cipher.ENCRYPT_MODE, key);
decryptCipher = Cipher.getInstance("DES");
decryptCipher.init(Cipher.DECRYPT_MODE, key);
}
public static Message encrypt(PublicKey pubKey, byte[] input) throws CryptoException {
Message message = new Message();
message.pubKey = pubKey.getEncoded();
KeyGenerator keyGen;
try {
keyGen = KeyGenerator.getInstance("AES");
} catch (NoSuchAlgorithmException e) {
throw new CryptoException(e);
}
keyGen.init(128);
SecretKey secretKey = keyGen.generateKey();
try {
Cipher rsaCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
rsaCipher.init(Cipher.ENCRYPT_MODE, pubKey);
message.sessionKey = rsaCipher.doFinal(secretKey.getEncoded());
Cipher aesCipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
aesCipher.init(Cipher.ENCRYPT_MODE, secretKey);
AlgorithmParameters params = aesCipher.getParameters();
message.iv = params.getParameterSpec(IvParameterSpec.class).getIV();
message.ciphertext = aesCipher.doFinal(input);
} catch (NoSuchAlgorithmException
| NoSuchPaddingException
| InvalidKeyException
| IllegalBlockSizeException
| BadPaddingException
| InvalidParameterSpecException e) {
throw new CryptoException(e);
}
return message;
}
/**
* @param p
* @throws java.security.InvalidKeyException
* @throws java.io.UnsupportedEncodingException
* @throws java.security.spec.InvalidKeySpecException
* @throws java.security.NoSuchAlgorithmException
* @throws javax.crypto.NoSuchPaddingException
*/
public void setPassword(String p) throws FacesException {
byte[] s = {
(byte) 0xA9,
(byte) 0x9B,
(byte) 0xC8,
(byte) 0x32,
(byte) 0x56,
(byte) 0x34,
(byte) 0xE3,
(byte) 0x03
};
try {
KeySpec keySpec = new DESKeySpec(p.getBytes("UTF8"));
SecretKey key = SecretKeyFactory.getInstance("DES").generateSecret(keySpec);
e = Cipher.getInstance(key.getAlgorithm());
d = Cipher.getInstance(key.getAlgorithm());
// Prepare the parameters to the cipthers
// AlgorithmParameterSpec paramSpec = new IvParameterSpec(s);
e.init(Cipher.ENCRYPT_MODE, key);
d.init(Cipher.DECRYPT_MODE, key);
} catch (Exception e) {
throw new FacesException("Error set encryption key", e);
}
}
public static byte[] decrypt(PrivateKey privKey, Message message) throws CryptoException {
try {
Cipher rsaCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
rsaCipher.init(Cipher.DECRYPT_MODE, privKey);
byte[] secretKeyBytes = rsaCipher.doFinal(message.sessionKey);
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("AES");
KeySpec ks = new SecretKeySpec(secretKeyBytes, "AES");
SecretKey secretKey = keyFactory.generateSecret(ks);
Cipher aesCipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
aesCipher.init(Cipher.DECRYPT_MODE, secretKey, new IvParameterSpec(message.iv));
byte[] messageBytes = aesCipher.doFinal(message.ciphertext);
return messageBytes;
} catch (NoSuchAlgorithmException
| NoSuchPaddingException
| InvalidKeyException
| IllegalBlockSizeException
| BadPaddingException
| InvalidKeySpecException
| InvalidAlgorithmParameterException e) {
throw new CryptoException(e);
}
}
/**
* 指定密钥构造方法
*
* @param strKey 指定的密钥
* @throws Exception
*/
public DESPlus(String strKey) throws Exception {
Security.addProvider(new com.sun.crypto.provider.SunJCE());
Key key = getKey(strKey.getBytes());
encryptCipher = Cipher.getInstance("DES");
encryptCipher.init(Cipher.ENCRYPT_MODE, key);
decryptCipher = Cipher.getInstance("DES");
decryptCipher.init(Cipher.DECRYPT_MODE, key);
}
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
javax.servlet.http.Cookie[] cookies = request.getCookies();
String param = null;
boolean foundit = false;
if (cookies != null) {
for (javax.servlet.http.Cookie cookie : cookies) {
if (cookie.getName().equals("foo")) {
param = cookie.getValue();
foundit = true;
}
}
if (!foundit) {
// no cookie found in collection
param = "";
}
} else {
// no cookies
param = "";
}
String bar;
// Simple if statement that assigns param to bar on true condition
int i = 196;
if ((500 / 42) + i > 200) bar = param;
else bar = "This should never happen";
java.security.Provider[] provider = java.security.Security.getProviders();
javax.crypto.Cipher c;
try {
if (provider.length > 1) {
c =
javax.crypto.Cipher.getInstance(
"DES/CBC/PKCS5PADDING", java.security.Security.getProvider("SunJCE"));
} else {
c =
javax.crypto.Cipher.getInstance(
"DES/CBC/PKCS5PADDING", java.security.Security.getProvider("SunJCE"));
}
} catch (java.security.NoSuchAlgorithmException e) {
System.out.println(
"Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Test Case");
throw new ServletException(e);
} catch (javax.crypto.NoSuchPaddingException e) {
System.out.println(
"Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Test Case");
throw new ServletException(e);
}
response
.getWriter()
.println(
"Crypto Test javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) executed");
}
public void doTest(String testname, KeyPairGenerator g, String cipher, IESParameterSpec p)
throws Exception {
byte[] message = Hex.decode("0102030405060708090a0b0c0d0e0f10111213141516");
byte[] out1, out2;
// Generate static key pair
KeyPair KeyPair = g.generateKeyPair();
ECPublicKey Pub = (ECPublicKey) KeyPair.getPublic();
ECPrivateKey Priv = (ECPrivateKey) KeyPair.getPrivate();
Cipher c1 = Cipher.getInstance(cipher);
Cipher c2 = Cipher.getInstance(cipher);
// Testing with null parameters and DHAES mode off
c1.init(Cipher.ENCRYPT_MODE, Pub, new SecureRandom());
c2.init(Cipher.DECRYPT_MODE, Priv, new SecureRandom());
out1 = c1.doFinal(message, 0, message.length);
out2 = c2.doFinal(out1, 0, out1.length);
if (!areEqual(out2, message))
fail(testname + " test failed with null parameters, DHAES mode false.");
// Testing with given parameters and DHAES mode off
c1.init(Cipher.ENCRYPT_MODE, Pub, p, new SecureRandom());
c2.init(Cipher.DECRYPT_MODE, Priv, p, new SecureRandom());
out1 = c1.doFinal(message, 0, message.length);
out2 = c2.doFinal(out1, 0, out1.length);
if (!areEqual(out2, message))
fail(testname + " test failed with non-null parameters, DHAES mode false.");
// TODO: DHAES mode is not currently implemented, perhaps it shouldn't be...
// c1 = Cipher.getInstance(cipher + "/DHAES/PKCS7Padding","BC");
// c2 = Cipher.getInstance(cipher + "/DHAES/PKCS7Padding","BC");
//
// // Testing with null parameters and DHAES mode on
// c1.init(Cipher.ENCRYPT_MODE, Pub, new SecureRandom());
// c2.init(Cipher.DECRYPT_MODE, Priv, new SecureRandom());
//
// out1 = c1.doFinal(message, 0, message.length);
// out2 = c2.doFinal(out1, 0, out1.length);
// if (!areEqual(out2, message))
// fail(testname + " test failed with null parameters, DHAES mode true.");
//
// c1 = Cipher.getInstance(cipher + "/DHAES/PKCS7Padding");
// c2 = Cipher.getInstance(cipher + "/DHAES/PKCS7Padding");
//
// // Testing with given parameters and DHAES mode on
// c1.init(Cipher.ENCRYPT_MODE, Pub, p, new SecureRandom());
// c2.init(Cipher.DECRYPT_MODE, Priv, p, new SecureRandom());
//
// out1 = c1.doFinal(message, 0, message.length);
// out2 = c2.doFinal(out1, 0, out1.length);
// if (!areEqual(out2, message))
// fail(testname + " test failed with non-null parameters, DHAES mode true.");
}
public MasterCipher(MasterSecret masterSecret) {
try {
this.masterSecret = masterSecret;
this.encryptingCipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
this.decryptingCipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
this.hmac = Mac.getInstance("HmacSHA1");
} catch (NoSuchPaddingException | NoSuchAlgorithmException nspe) {
throw new AssertionError(nspe);
}
}
private void init(final SecretKey key) {
try {
_ecipher = Cipher.getInstance("DES");
_dcipher = Cipher.getInstance("DES");
_ecipher.init(Cipher.ENCRYPT_MODE, key);
_dcipher.init(Cipher.DECRYPT_MODE, key);
} catch (Throwable t) {
this.getLogger().log(Level.SEVERE, null, t);
}
}
public boolean shareAESkey() {
try {
Envelope message = null, e = null;
// Generate AES key
KeyGenerator keyGen = KeyGenerator.getInstance("AES");
AESkey = keyGen.generateKey();
keyGen = KeyGenerator.getInstance("HmacSHA1");
HMACkey = keyGen.generateKey();
byte[] keyBytes = AESkey.getEncoded();
byte[] hashBytes = HMACkey.getEncoded();
System.out.println("AES key generated");
System.out.println("HMAC key generated");
System.out.println("Begin Encryption...");
// Encrypt message w/ provided public key
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.ENCRYPT_MODE, pubKey);
byte[] cipherBytes = cipher.doFinal(keyBytes);
byte[] cipherBytes1 = cipher.doFinal(hashBytes);
System.out.println("Encryption Complete");
message = new Envelope("SKEY");
message.addObject(cipherBytes); // Add AESkey to message
message.addObject(cipherBytes1);
message.addObject(nonce);
nonce++;
byte[] messageBytes = Envelope.toByteArray(message);
output.writeObject(messageBytes);
byte[] inCipherBytes = (byte[]) input.readObject();
// Decrypt response
cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, AESkey);
byte[] responseBytes = cipher.doFinal(inCipherBytes);
Envelope response = Envelope.getEnvelopefromBytes(responseBytes);
// If server indicates success, return the member list
if (response.getMessage().equals("OK")
&& (Integer) response.getObjContents().get(0) == nonce) {
return true;
} else {
return false;
}
} catch (Exception e) {
System.err.println("Error: " + e.getMessage());
e.printStackTrace(System.err);
return false;
}
}
public DESUtil(String strKey) {
java.security.Security.addProvider(new com.sun.crypto.provider.SunJCE());
try {
Key key = getKey(strKey.getBytes());
encryptCipher = Cipher.getInstance("DES");
encryptCipher.init(Cipher.ENCRYPT_MODE, key);
decryptCipher = Cipher.getInstance("DES");
decryptCipher.init(Cipher.DECRYPT_MODE, key);
} catch (Exception e) {
e.printStackTrace();
}
}
private void oaepCompatibilityTest(String digest, PrivateKey privKey, PublicKey pubKey)
throws Exception {
if (Security.getProvider("SunJCE") == null || Security.getProvider("SunRsaSign") == null) {
return;
}
KeyFactory fact = KeyFactory.getInstance("RSA", "SunRsaSign");
PrivateKey priv2048Key = fact.generatePrivate(priv2048KeySpec);
PublicKey pub2048Key = fact.generatePublic(pub2048KeySpec);
byte[] data = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
Cipher sCipher;
try {
sCipher = Cipher.getInstance("RSA/ECB/OAEPWith" + digest + "AndMGF1Padding", "SunJCE");
} catch (NoSuchAlgorithmException e) {
return;
} catch (NoSuchPaddingException e) {
return;
}
sCipher.init(Cipher.ENCRYPT_MODE, pub2048Key);
byte[] enctext = sCipher.doFinal(data);
Cipher bcCipher = Cipher.getInstance("RSA/ECB/OAEPWith" + digest + "AndMGF1Padding", "BC");
bcCipher.init(
Cipher.DECRYPT_MODE,
privKey,
new OAEPParameterSpec(digest, "MGF1", MGF1ParameterSpec.SHA1, PSource.PSpecified.DEFAULT));
byte[] plaintext = bcCipher.doFinal(enctext);
if (!Arrays.areEqual(plaintext, data)) {
fail("data did not decrypt first time");
}
bcCipher.init(
Cipher.ENCRYPT_MODE,
pubKey,
new OAEPParameterSpec(digest, "MGF1", MGF1ParameterSpec.SHA1, PSource.PSpecified.DEFAULT));
enctext = bcCipher.doFinal(data);
sCipher.init(Cipher.DECRYPT_MODE, priv2048Key);
plaintext = sCipher.doFinal(enctext);
if (!Arrays.areEqual(plaintext, data)) {
fail("data did not decrypt second time");
}
}
/**
* 指定密钥构造方法
*
* @param String 指定的密钥
* @throws Exception JAVA异常
*/
public DESCipher(String strKey, int type) throws Exception {
Security.addProvider(new com.sun.crypto.provider.SunJCE());
Key key = getKey(strKey.getBytes());
if (type == type_encode || type == type_all) {
encryptCipher = Cipher.getInstance("DES");
encryptCipher.init(Cipher.ENCRYPT_MODE, key);
}
if (type == type_decode || type == type_all) {
decryptCipher = Cipher.getInstance("DES");
decryptCipher.init(Cipher.DECRYPT_MODE, key);
}
}
public void testModule() throws Exception {
Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); // Add
// Create the secret/symmetric key
KeyGenerator kgen = KeyGenerator.getInstance("Blowfish");
SecretKey skey = kgen.generateKey();
byte[] raw = skey.getEncoded();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "Blowfish");
// Create the cipher for encrypting
Cipher cipher = Cipher.getInstance("Blowfish");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
// Encrypt the data
byte[] encrypted = cipher.doFinal(plain);
// Save the encrypted data
FileOutputStream fos = new FileOutputStream(datafile);
fos.write(encrypted);
fos.close();
// Save the cipher settings
byte[] encodedKeySpec = skeySpec.getEncoded();
FileOutputStream eksos = new FileOutputStream(keyfile);
eksos.write(encodedKeySpec);
eksos.close();
// Read the encrypted data
FileInputStream fis = new FileInputStream(datafile);
byte[] temp = new byte[8192];
int bytesRead = fis.read(temp);
byte[] data = new byte[bytesRead];
System.arraycopy(temp, 0, data, 0, bytesRead);
// Read the cipher settings
FileInputStream eksis = new FileInputStream(keyfile);
bytesRead = eksis.read(temp);
encodedKeySpec = new byte[bytesRead];
System.arraycopy(temp, 0, encodedKeySpec, 0, bytesRead);
// Recreate the secret/symmetric key
skeySpec = new SecretKeySpec(encodedKeySpec, "Blowfish");
// Create the cipher for encrypting
cipher = Cipher.getInstance("Blowfish");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
// Decrypt the data
byte[] decrypted = cipher.doFinal(data);
assertTrue(Arrays.equals(decrypted, plain));
}
public Encrypter() throws Exception {
ecipher = Cipher.getInstance("AES");
dcipher = Cipher.getInstance("AES");
// KeyGenerator _generator = KeyGenerator.getInstance("AES");
// SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
// sr.setSeed(strKey.getBytes("UTF8"));
// //_generator.init(new SecureRandom(strKey.getBytes()));
// _generator.init(128,sr);
// SecretKey key = _generator.generateKey();
SKey key2 = new SKey("AES", "RAW", key);
ecipher.init(Cipher.ENCRYPT_MODE, key2);
dcipher.init(Cipher.DECRYPT_MODE, key2);
}
public Encrypter() {
try {
SecretKey key = KeyGenerator.getInstance("DES").generateKey();
ecipher = Cipher.getInstance("DES");
dcipher = Cipher.getInstance("DES");
ecipher.init(Cipher.ENCRYPT_MODE, key);
dcipher.init(Cipher.DECRYPT_MODE, key);
} catch (javax.crypto.NoSuchPaddingException e) {
} catch (java.security.NoSuchAlgorithmException e) {
} catch (java.security.InvalidKeyException e) {
}
}
/**
* Description: Sets the cipher keys up.
*
* @throws Exception
*/
private void setCipher()
throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {
// We're using the built in Blowfish cipher here.
blowfish_encode = Cipher.getInstance("Blowfish/ECB/NoPadding");
byte[] encrypt_key_data = this.credentials.e_cipher.getBytes();
SecretKeySpec key_spec = new SecretKeySpec(encrypt_key_data, "Blowfish");
blowfish_encode.init(Cipher.ENCRYPT_MODE, key_spec);
blowfish_decode = Cipher.getInstance("Blowfish/ECB/NoPadding");
byte[] decrypt_key_data = this.credentials.d_cipher.getBytes();
key_spec = new SecretKeySpec(decrypt_key_data, "Blowfish");
blowfish_decode.init(Cipher.DECRYPT_MODE, key_spec);
}