Java Code Examples for javax.crypto.Cipher#WRAP_MODE
The following examples show how to use
javax.crypto.Cipher#WRAP_MODE .
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Example 1
| Source File: CipherSpi.java From ripple-lib-java with ISC License | 6 votes |
|
protected void engineInit(
int opmode,
Key key,
SecureRandom random)
throws InvalidKeyException
{
if (opmode == Cipher.ENCRYPT_MODE || opmode == Cipher.WRAP_MODE)
{
try
{
engineInit(opmode, key, (AlgorithmParameterSpec)null, random);
return;
}
catch (InvalidAlgorithmParameterException e)
{
// fall through...
}
}
throw new IllegalArgumentException("can't handle null parameter spec in IES");
}
Example 2
| Source File: CipherSpi.java From ripple-lib-java with ISC License | 6 votes |
|
protected int engineGetOutputSize(
int inputLen)
{
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + inputLen + 20; /* SHA1 MAC size */
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() + inputLen - 20;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
}
Example 3
| Source File: JCEIESCipher.java From BiglyBT with GNU General Public License v2.0 | 6 votes |
|
protected int engineGetOutputSize(
int inputLen)
{
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + inputLen + 20; /* SHA1 MAC size */
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() + inputLen - 20;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
}
Example 4
| Source File: CipherSpi.java From RipplePower with Apache License 2.0 | 6 votes |
|
protected void engineInit(
int opmode,
Key key,
SecureRandom random)
throws InvalidKeyException
{
if (opmode == Cipher.ENCRYPT_MODE || opmode == Cipher.WRAP_MODE)
{
try
{
engineInit(opmode, key, (AlgorithmParameterSpec)null, random);
return;
}
catch (InvalidAlgorithmParameterException e)
{
// fall through...
}
}
throw new IllegalArgumentException("can't handle null parameter spec in IES");
}
Example 5
| Source File: JCEIESCipher.java From BiglyBT with GNU General Public License v2.0 | 6 votes |
|
protected void engineInit(
int opmode,
Key key,
SecureRandom random)
throws InvalidKeyException
{
if (opmode == Cipher.ENCRYPT_MODE || opmode == Cipher.WRAP_MODE)
{
try
{
engineInit(opmode, key, (AlgorithmParameterSpec)null, random);
return;
}
catch (InvalidAlgorithmParameterException e)
{
// fall through...
}
}
throw new IllegalArgumentException("can't handle null parameter spec in IES");
}
Example 6
| Source File: JCEIESCipher.java From TorrentEngine with GNU General Public License v3.0 | 6 votes |
|
protected int engineGetOutputSize(
int inputLen)
{
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + inputLen + 20; /* SHA1 MAC size */
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() + inputLen - 20;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
}
Example 7
| Source File: JCEIESCipher.java From TorrentEngine with GNU General Public License v3.0 | 6 votes |
|
protected void engineInit(
int opmode,
Key key,
SecureRandom random)
throws InvalidKeyException
{
if (opmode == Cipher.ENCRYPT_MODE || opmode == Cipher.WRAP_MODE)
{
try
{
engineInit(opmode, key, (AlgorithmParameterSpec)null, random);
return;
}
catch (InvalidAlgorithmParameterException e)
{
// fall through...
}
}
throw new IllegalArgumentException("can't handle null parameter spec in IES");
}
Example 8
| Source File: CipherSpi.java From RipplePower with Apache License 2.0 | 6 votes |
|
protected int engineGetOutputSize(
int inputLen)
{
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + inputLen + 20; /* SHA1 MAC size */
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() + inputLen - 20;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
}
Example 9
| Source File: SecureEncryptor.java From CogniCrypt with Eclipse Public License 2.0 | 5 votes |
|
public byte[] encryptSessionKey(javax.crypto.SecretKey sessionKey, java.security.KeyPair keyPair) throws GeneralSecurityException {
byte[] wrappedKeyBytes = null;
int mode = Cipher.WRAP_MODE;
java.security.PublicKey publicKey = keyPair.getPublic();
CrySLCodeGenerator.getInstance().includeClass("javax.crypto.Cipher").addParameter(mode, "encmode").addParameter(publicKey, "key").addParameter(sessionKey, "wrappedKey")
.addReturnObject(wrappedKeyBytes).generate();
return wrappedKeyBytes;
}
Example 10
| Source File: SecureEncryptor.java From CogniCrypt with Eclipse Public License 2.0 | 5 votes |
|
public byte[] encryptSessionKey(javax.crypto.SecretKey sessionKey, java.security.KeyPair keyPair) throws GeneralSecurityException {
byte[] wrappedKeyBytes = null;
int mode = Cipher.WRAP_MODE;
java.security.PublicKey publicKey = keyPair.getPublic();
CrySLCodeGenerator.getInstance().includeClass("javax.crypto.Cipher").addParameter(mode, "encmode").addParameter(publicKey, "key").addParameter(sessionKey, "wrappedKey")
.addReturnObject(wrappedKeyBytes).generate();
return wrappedKeyBytes;
}
Example 11
| Source File: SecureEncryptor.java From CogniCrypt with Eclipse Public License 2.0 | 5 votes |
|
public byte[] encryptSessionKey(javax.crypto.SecretKey sessionKey, java.security.KeyPair keyPair) throws GeneralSecurityException {
byte[] wrappedKeyBytes = null;
int mode = Cipher.WRAP_MODE;
java.security.PublicKey publicKey = keyPair.getPublic();
CrySLCodeGenerator.getInstance().includeClass("javax.crypto.Cipher").addParameter(mode, "encmode").addParameter(publicKey, "key").addParameter(sessionKey, "wrappedKey")
.addReturnObject(wrappedKeyBytes).generate();
return wrappedKeyBytes;
}
Example 12
| Source File: IESCipher.java From RipplePower with Apache License 2.0 | 4 votes |
|
public int engineGetOutputSize(int inputLen)
{
int len1, len2, len3;
len1 = engine.getMac().getMacSize();
if (key != null)
{
len2 = ((DHKey)key).getParams().getP().bitLength() / 8 + 1;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (engine.getCipher() == null)
{
len3 = inputLen;
}
else if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen);
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen - len1 - len2);
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + len1 + len2 + len3;
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() - len1 - len2 + len3;
}
else
{
throw new IllegalStateException("IESCipher not initialised");
}
}
Example 13
| Source File: IESCipher.java From RipplePower with Apache License 2.0 | 4 votes |
|
public int engineGetOutputSize(int inputLen)
{
int len1, len2, len3;
len1 = engine.getMac().getMacSize();
if (key != null)
{
len2 = 1 + 2 * (((ECKey)key).getParameters().getCurve().getFieldSize() + 7) / 8;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (engine.getCipher() == null)
{
len3 = inputLen;
}
else if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen);
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen - len1 - len2);
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + len1 + len2 + len3;
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() - len1 - len2 + len3;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
}
Example 14
| Source File: BaseWrapCipher.java From RipplePower with Apache License 2.0 | 4 votes |
|
protected void engineInit(
int opmode,
Key key,
AlgorithmParameterSpec params,
SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException
{
CipherParameters param;
if (key instanceof BCPBEKey)
{
BCPBEKey k = (BCPBEKey)key;
if (params instanceof PBEParameterSpec)
{
param = PBE.Util.makePBEParameters(k, params, wrapEngine.getAlgorithmName());
}
else if (k.getParam() != null)
{
param = k.getParam();
}
else
{
throw new InvalidAlgorithmParameterException("PBE requires PBE parameters to be set.");
}
}
else
{
param = new KeyParameter(key.getEncoded());
}
if (params instanceof IvParameterSpec)
{
IvParameterSpec iv = (IvParameterSpec) params;
param = new ParametersWithIV(param, iv.getIV());
}
if (param instanceof KeyParameter && ivSize != 0)
{
iv = new byte[ivSize];
random.nextBytes(iv);
param = new ParametersWithIV(param, iv);
}
if (random != null)
{
param = new ParametersWithRandom(param, random);
}
switch (opmode)
{
case Cipher.WRAP_MODE:
wrapEngine.init(true, param);
break;
case Cipher.UNWRAP_MODE:
wrapEngine.init(false, param);
break;
case Cipher.ENCRYPT_MODE:
case Cipher.DECRYPT_MODE:
throw new IllegalArgumentException("engine only valid for wrapping");
default:
System.out.println("eeek!");
}
}
Example 15
| Source File: JCEIESCipher.java From BiglyBT with GNU General Public License v2.0 | 4 votes |
|
public void engineInit(
int opmode,
Key key,
AlgorithmParameterSpec params,
SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException
{
if (!(key instanceof IESKey))
{
throw new InvalidKeyException("must be passed IE key");
}
if (params == null && (opmode == Cipher.ENCRYPT_MODE || opmode == Cipher.WRAP_MODE))
{
//
// if nothing is specified we set up for a 128 bit mac, with
// 128 bit derivation vectors.
//
byte[] d = new byte[16];
byte[] e = new byte[16];
if (random == null)
{
random = new SecureRandom();
}
random.nextBytes(d);
random.nextBytes(e);
params = new IESParameterSpec(d, e, 128);
}
else if (!(params instanceof IESParameterSpec))
{
throw new InvalidAlgorithmParameterException("must be passed IES parameters");
}
IESKey ieKey = (IESKey)key;
CipherParameters pubKey;
CipherParameters privKey;
if (ieKey.getPublic() instanceof JCEECPublicKey)
{
pubKey = ECUtil.generatePublicKeyParameter(ieKey.getPublic());
privKey = ECUtil.generatePrivateKeyParameter(ieKey.getPrivate());
}
else
{
pubKey = DHUtil.generatePublicKeyParameter(ieKey.getPublic());
privKey = DHUtil.generatePrivateKeyParameter(ieKey.getPrivate());
}
this.engineParams = (IESParameterSpec)params;
IESParameters p = new IESParameters(engineParams.getDerivationV(), engineParams.getEncodingV(), engineParams.getMacKeySize());
this.state = opmode;
buffer.reset();
switch (opmode)
{
case Cipher.ENCRYPT_MODE:
case Cipher.WRAP_MODE:
cipher.init(true, privKey, pubKey, p);
break;
case Cipher.DECRYPT_MODE:
case Cipher.UNWRAP_MODE:
cipher.init(false, privKey, pubKey, p);
break;
default:
System.out.println("eeek!");
}
}
Example 16
| Source File: BaseWrapCipher.java From ripple-lib-java with ISC License | 4 votes |
|
protected void engineInit(
int opmode,
Key key,
AlgorithmParameterSpec params,
SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException
{
CipherParameters param;
if (key instanceof BCPBEKey)
{
BCPBEKey k = (BCPBEKey)key;
if (params instanceof PBEParameterSpec)
{
param = PBE.Util.makePBEParameters(k, params, wrapEngine.getAlgorithmName());
}
else if (k.getParam() != null)
{
param = k.getParam();
}
else
{
throw new InvalidAlgorithmParameterException("PBE requires PBE parameters to be set.");
}
}
else
{
param = new KeyParameter(key.getEncoded());
}
if (params instanceof IvParameterSpec)
{
IvParameterSpec iv = (IvParameterSpec) params;
param = new ParametersWithIV(param, iv.getIV());
}
if (param instanceof KeyParameter && ivSize != 0)
{
iv = new byte[ivSize];
random.nextBytes(iv);
param = new ParametersWithIV(param, iv);
}
if (random != null)
{
param = new ParametersWithRandom(param, random);
}
switch (opmode)
{
case Cipher.WRAP_MODE:
wrapEngine.init(true, param);
break;
case Cipher.UNWRAP_MODE:
wrapEngine.init(false, param);
break;
case Cipher.ENCRYPT_MODE:
case Cipher.DECRYPT_MODE:
throw new IllegalArgumentException("engine only valid for wrapping");
default:
System.out.println("eeek!");
}
}
Example 17
| Source File: IESCipher.java From ripple-lib-java with ISC License | 4 votes |
|
public int engineGetOutputSize(int inputLen)
{
int len1, len2, len3;
len1 = engine.getMac().getMacSize();
if (key != null)
{
len2 = ((DHKey)key).getParams().getP().bitLength() / 8 + 1;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (engine.getCipher() == null)
{
len3 = inputLen;
}
else if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen);
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen - len1 - len2);
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + len1 + len2 + len3;
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() - len1 - len2 + len3;
}
else
{
throw new IllegalStateException("IESCipher not initialised");
}
}
Example 18
| Source File: IESCipher.java From ripple-lib-java with ISC License | 4 votes |
|
public int engineGetOutputSize(int inputLen)
{
int len1, len2, len3;
len1 = engine.getMac().getMacSize();
if (key != null)
{
len2 = 1 + 2 * (((ECKey)key).getParameters().getCurve().getFieldSize() + 7) / 8;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (engine.getCipher() == null)
{
len3 = inputLen;
}
else if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen);
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen - len1 - len2);
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + len1 + len2 + len3;
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() - len1 - len2 + len3;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
}
