/**
* initialise a DESede cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public override void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("invalid parameter passed to DESede init - " + parameters.GetType().ToString());
byte[] keyMaster = ((KeyParameter)parameters).GetKey();
if (keyMaster.Length != 24 && keyMaster.Length != 16)
throw new ArgumentException("key size must be 16 or 24 bytes.");
this.forEncryption = forEncryption;
byte[] key1 = new byte[8];
Array.Copy(keyMaster, 0, key1, 0, key1.Length);
workingKey1 = GenerateWorkingKey(forEncryption, key1);
byte[] key2 = new byte[8];
Array.Copy(keyMaster, 8, key2, 0, key2.Length);
workingKey2 = GenerateWorkingKey(!forEncryption, key2);
if (keyMaster.Length == 24)
{
byte[] key3 = new byte[8];
Array.Copy(keyMaster, 16, key3, 0, key3.Length);
workingKey3 = GenerateWorkingKey(forEncryption, key3);
}
else // 16 byte key
{
workingKey3 = workingKey1;
}
}
public void Init(bool encrypting, ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("Invalid parameter passed to "+
"DesSsh1Engine init - " + parameters.GetType());
}
this.encrypting = encrypting;
byte[] passphraseKey = (parameters as KeyParameter).GetKey();
if (passphraseKey.Length !=16)
{
throw new ArgumentException("key size different than 16 bytes");
}
byte[] keyPart1 = new byte[8];
byte[] keyPart2 = new byte[8];
Array.Copy(passphraseKey, keyPart1, 8);
Array.Copy(passphraseKey, 8, keyPart2, 0, 8);
desEngine1 = new CbcBlockCipher(new DesEngine());
desEngine2 = new CbcBlockCipher(new DesEngine());
desEngine3 = new CbcBlockCipher(new DesEngine());
desEngine1.Init(encrypting, new KeyParameter(keyPart1));
desEngine2.Init(!encrypting, new KeyParameter(keyPart2));
desEngine3.Init(encrypting, new KeyParameter(keyPart1));
}
/**
* initialise a SKIPJACK cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("invalid parameter passed to SKIPJACK init - " + parameters.GetType().ToString());
byte[] keyBytes = ((KeyParameter)parameters).GetKey();
this.encrypting = forEncryption;
this.key0 = new int[32];
this.key1 = new int[32];
this.key2 = new int[32];
this.key3 = new int[32];
//
// expand the key to 128 bytes in 4 parts (saving us a modulo, multiply
// and an addition).
//
for (int i = 0; i < 32; i ++)
{
key0[i] = keyBytes[(i * 4) % 10] & 0xff;
key1[i] = keyBytes[(i * 4 + 1) % 10] & 0xff;
key2[i] = keyBytes[(i * 4 + 2) % 10] & 0xff;
key3[i] = keyBytes[(i * 4 + 3) % 10] & 0xff;
}
}
public void Init(
ICipherParameters parameters)
{
Reset();
buf = new byte[blockSize];
if (parameters is ParametersWithSBox)
{
ParametersWithSBox param = (ParametersWithSBox)parameters;
//
// Set the S-Box
//
param.GetSBox().CopyTo(this.S, 0);
//
// set key if there is one
//
if (param.Parameters != null)
{
workingKey = generateWorkingKey(((KeyParameter)param.Parameters).GetKey());
}
}
else if (parameters is KeyParameter)
{
workingKey = generateWorkingKey(((KeyParameter)parameters).GetKey());
}
else
{
throw new ArgumentException("invalid parameter passed to Gost28147 init - "
+ parameters.GetType().Name);
}
}
/**
* Initialise a HC-256 cipher.
*
* @param forEncryption whether or not we are for encryption. Irrelevant, as
* encryption and decryption are the same.
* @param params the parameters required to set up the cipher.
* @throws ArgumentException if the params argument is
* inappropriate (ie. the key is not 256 bit long).
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
ICipherParameters keyParam = parameters;
if (parameters is ParametersWithIV)
{
iv = ((ParametersWithIV)parameters).GetIV();
keyParam = ((ParametersWithIV)parameters).Parameters;
}
else
{
iv = new byte[0];
}
if (keyParam is KeyParameter)
{
key = ((KeyParameter)keyParam).GetKey();
Init();
}
else
{
throw new ArgumentException(
"Invalid parameter passed to HC256 init - " + parameters.GetType().Name,
"parameters");
}
initialised = true;
}
/**
* initialise a DES cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("invalid parameter passed to DES init - " + parameters.GetType().ToString());
workingKey = GenerateWorkingKey(forEncryption, ((KeyParameter)parameters).GetKey());
}
private int X0, X1, X2, X3; // registers
/**
* initialise a Serpent cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("invalid parameter passed to Serpent init - " + parameters.GetType().ToString());
this.encrypting = forEncryption;
this.wKey = MakeWorkingKey(((KeyParameter)parameters).GetKey());
}
/**
* initialise a RC5-32 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("invalid parameter passed to RC6 init - " + parameters.GetType().ToString());
this.forEncryption = forEncryption;
KeyParameter p = (KeyParameter)parameters;
SetKey(p.GetKey());
}
/**
* initialise
*
* @param forEncryption whether or not we are for encryption.
* @param params the parameters required to set up the cipher.
* @exception ArgumentException if the params argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("Invalid parameters passed to Noekeon init - " + parameters.GetType().Name, "parameters");
_forEncryption = forEncryption;
_initialised = true;
KeyParameter p = (KeyParameter) parameters;
setKey(p.GetKey());
}
/**
* initialise a RC5-64 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is RC5Parameters))
{
throw new ArgumentException("invalid parameter passed to RC564 init - " + parameters.GetType().ToString());
}
RC5Parameters p = (RC5Parameters)parameters;
this.forEncryption = forEncryption;
_noRounds = p.Rounds;
SetKey(p.GetKey());
}
/**
* initialise an ISAAC cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param params the parameters required to set up the cipher.
* @exception ArgumentException if the params argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException(
"invalid parameter passed to ISAAC Init - " + parameters.GetType().Name,
"parameters");
/*
* ISAAC encryption and decryption is completely
* symmetrical, so the 'forEncryption' is
* irrelevant.
*/
KeyParameter p = (KeyParameter) parameters;
setKey(p.GetKey());
}
/**
* initialise
*
* @param forEncryption whether or not we are for encryption.
* @param params the parameters required to set up the cipher.
* @exception ArgumentException if the params argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to TEA init - "
+ parameters.GetType().FullName);
}
_forEncryption = forEncryption;
_initialised = true;
KeyParameter p = (KeyParameter) parameters;
setKey(p.GetKey());
}
/**
* initialise a RC4 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters is KeyParameter)
{
/*
* RC4 encryption and decryption is completely
* symmetrical, so the 'forEncryption' is
* irrelevant.
*/
workingKey = ((KeyParameter)parameters).GetKey();
SetKey(workingKey);
return;
}
throw new ArgumentException("invalid parameter passed to RC4 init - " + parameters.GetType().ToString());
}
/// <summary>
/// Optionally initialises the Skein digest with the provided parameters.
/// </summary>
/// See <see cref="NBitcoin.BouncyCastle.Crypto.Parameters.SkeinParameters"></see> for details on the parameterisation of the Skein hash function.
/// <param name="parameters">the parameters to apply to this engine, or <code>null</code> to use no parameters.</param>
public void Init(ICipherParameters parameters)
{
SkeinParameters skeinParameters;
if (parameters is SkeinParameters)
{
skeinParameters = (SkeinParameters)parameters;
}
else if (parameters is KeyParameter)
{
skeinParameters = new SkeinParameters.Builder().SetKey(((KeyParameter)parameters).GetKey()).Build();
}
else
{
throw new ArgumentException("Invalid parameter passed to Skein MAC init - "
+ parameters.GetType().Name);
}
if (skeinParameters.GetKey() == null)
{
throw new ArgumentException("Skein MAC requires a key parameter.");
}
engine.Init(skeinParameters);
}
/// <summary>
/// Initialise the engine.
/// </summary>
/// <param name="forEncryption">Initialise for encryption if true, for decryption if false.</param>
/// <param name="parameters">an instance of <see cref="TweakableBlockCipherParameters"/> or <see cref="KeyParameter"/> (to
/// use a 0 tweak)</param>
public void Init(bool forEncryption, ICipherParameters parameters)
{
byte[] keyBytes;
byte[] tweakBytes;
if (parameters is TweakableBlockCipherParameters)
{
TweakableBlockCipherParameters tParams = (TweakableBlockCipherParameters)parameters;
keyBytes = tParams.Key.GetKey();
tweakBytes = tParams.Tweak;
}
else if (parameters is KeyParameter)
{
keyBytes = ((KeyParameter)parameters).GetKey();
tweakBytes = null;
}
else
{
throw new ArgumentException("Invalid parameter passed to Threefish init - "
+ parameters.GetType().Name);
}
ulong[] keyWords = null;
ulong[] tweakWords = null;
if (keyBytes != null)
{
if (keyBytes.Length != this.blocksizeBytes)
{
throw new ArgumentException("Threefish key must be same size as block (" + blocksizeBytes
+ " bytes)");
}
keyWords = new ulong[blocksizeWords];
for (int i = 0; i < keyWords.Length; i++)
{
keyWords[i] = BytesToWord(keyBytes, i * 8);
}
}
if (tweakBytes != null)
{
if (tweakBytes.Length != TWEAK_SIZE_BYTES)
{
throw new ArgumentException("Threefish tweak must be " + TWEAK_SIZE_BYTES + " bytes");
}
tweakWords = new ulong[]{BytesToWord(tweakBytes, 0), BytesToWord(tweakBytes, 8)};
}
Init(forEncryption, keyWords, tweakWords);
}
/**
* initialise a RC5-32 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters is RC5Parameters) {
RC5Parameters p = (RC5Parameters)parameters;
_noRounds = p.Rounds;
SetKey (p.GetKey ());
} else if (parameters is KeyParameter) {
KeyParameter p = (KeyParameter)parameters;
SetKey (p.GetKey ());
} else {
throw new ArgumentException ("invalid parameter passed to RC532 init - " + parameters.GetType ().ToString ());
}
this.forEncryption = forEncryption;
}
public virtual void Init(bool forEncryption, ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to ISAAC Init - " + parameters.GetType().Name, "parameters");
}
KeyParameter keyParameter = (KeyParameter)parameters;
this.setKey(keyParameter.GetKey());
}
/**
* initialise an Gost28147 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters is ParametersWithSBox)
{
ParametersWithSBox param = (ParametersWithSBox)parameters;
//
// Set the S-Box
//
byte[] sBox = param.GetSBox();
if (sBox.Length != Sbox_Default.Length)
{
throw new ArgumentException("invalid S-box passed to GOST28147 init");
}
this.S = Arrays.Clone(sBox);
//
// set key if there is one
//
if (param.Parameters != null)
{
workingKey = generateWorkingKey(forEncryption,
((KeyParameter)param.Parameters).GetKey());
}
}
else if (parameters is KeyParameter)
{
workingKey = generateWorkingKey(forEncryption,
((KeyParameter)parameters).GetKey());
}
else if (parameters != null)
{
throw new ArgumentException("invalid parameter passed to Gost28147 init - " + parameters.GetType().Name);
}
}
/**
* initialise an AES cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to AES init - " + parameters.GetType().ToString());
}
WorkingKey = GenerateWorkingKey(((KeyParameter)parameters).GetKey(), forEncryption);
this.forEncryption = forEncryption;
}
/**
* initialise a RC5-32 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(bool forEncryption, ICipherParameters parameters)
{
if (parameters is RC5Parameters)
{
var p = (RC5Parameters)parameters;
_noRounds = p.Rounds;
SetKey(p.GetKey());
}
else if (parameters is KeyParameter)
{
var p = (KeyParameter)parameters;
SetKey(p.GetKey());
}
else
{
throw new ArgumentException("invalid parameter passed to RC532 init - " + parameters.GetType());
}
this.forEncryption = forEncryption;
}
/**
* initialise a RC2 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
this.encrypting = forEncryption;
if (parameters is RC2Parameters)
{
RC2Parameters param = (RC2Parameters) parameters;
workingKey = GenerateWorkingKey(param.GetKey(), param.EffectiveKeyBits);
}
else if (parameters is KeyParameter)
{
KeyParameter param = (KeyParameter) parameters;
byte[] key = param.GetKey();
workingKey = GenerateWorkingKey(key, key.Length * 8);
}
else
{
throw new ArgumentException("invalid parameter passed to RC2 init - " + parameters.GetType().Name);
}
}
/**
* initialise an Gost28147 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters is ParametersWithSBox)
{
ParametersWithSBox param = (ParametersWithSBox)parameters;
//
// Set the S-Box
//
Array.Copy(param.GetSBox(), 0, this.S, 0, param.GetSBox().Length);
//
// set key if there is one
//
if (param.Parameters != null)
{
workingKey = generateWorkingKey(forEncryption,
((KeyParameter)param.Parameters).GetKey());
}
}
else if (parameters is KeyParameter)
{
workingKey = generateWorkingKey(forEncryption,
((KeyParameter)parameters).GetKey());
}
else
{
throw new ArgumentException("invalid parameter passed to Gost28147 init - " + parameters.GetType().Name);
}
}
public virtual void Init(bool forEncryption, ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to TEA init - " + parameters.GetType().FullName);
}
this._forEncryption = forEncryption;
this._initialised = true;
KeyParameter keyParameter = (KeyParameter)parameters;
this.setKey(keyParameter.GetKey());
}
/**
* initialise an AES cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("invalid parameter passed to AES init - " + parameters.GetType().ToString());
WorkingKey = GenerateWorkingKey(((KeyParameter)parameters).GetKey(), forEncryption);
this.forEncryption = forEncryption;
}
private int X0, X1, X2, X3; // registers
/**
* initialise a Serpent cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to Serpent init - " + parameters.GetType().ToString());
}
this.encrypting = forEncryption;
this.wKey = MakeWorkingKey(((KeyParameter)parameters).GetKey());
}
/**
* initialise
*
* @param forEncryption whether or not we are for encryption.
* @param params the parameters required to set up the cipher.
* @exception ArgumentException if the params argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("Invalid parameters passed to Noekeon init - " + parameters.GetType().Name, "parameters");
}
_forEncryption = forEncryption;
_initialised = true;
KeyParameter p = (KeyParameter)parameters;
setKey(p.GetKey());
}
/**
* initialise a RC5-32 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (typeof(RC5Parameters).IsInstanceOfType(parameters))
{
RC5Parameters p = (RC5Parameters)parameters;
_noRounds = p.Rounds;
SetKey(p.GetKey());
}
else if (typeof(KeyParameter).IsInstanceOfType(parameters))
{
KeyParameter p = (KeyParameter)parameters;
SetKey(p.GetKey());
}
else
{
throw new ArgumentException("invalid parameter passed to RC532 init - " + parameters.GetType().ToString());
}
this.forEncryption = forEncryption;
}
/**
* initialise a RC5-32 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
//TODO: SUSTITUIDO. CAMBIAMOS EL IsInstanceOfType POR UN BLOQUE try - catch
//if (typeof(RC5Parameters).IsInstanceOfType(parameters))
//{
// RC5Parameters p = (RC5Parameters)parameters;
// _noRounds = p.Rounds;
// SetKey(p.GetKey());
//}
//else if (typeof(KeyParameter).GetType().IsInstanceOfType(parameters))
//{
// KeyParameter p = (KeyParameter)parameters;
// SetKey(p.GetKey());
//}
//else
//{
// throw new ArgumentException("invalid parameter passed to RC532 init - " + parameters.GetType().ToString());
//}
//this.forEncryption = forEncryption;
try{
RC5Parameters p = (RC5Parameters)parameters;
_noRounds = p.Rounds;
SetKey(p.GetKey());
}
catch (Exception e) {
try
{
KeyParameter p = (KeyParameter)parameters;
SetKey(p.GetKey());
}
catch (Exception e2)
{
throw new ArgumentException("invalid parameter passed to RC532 init - " + parameters.GetType().ToString() + " e:" + e + " : " + e2);
}
}
this.forEncryption = forEncryption;
}
/**
* initialise a Twofish cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("invalid parameter passed to Twofish init - " + parameters.GetType().ToString());
this.encrypting = forEncryption;
this.workingKey = ((KeyParameter)parameters).GetKey();
this.k64Cnt = (this.workingKey.Length / 8); // pre-padded ?
SetKey(this.workingKey);
}
public void Init(ICipherParameters parameters)
{
SkeinParameters skeinParameters;
if (parameters is SkeinParameters)
{
skeinParameters = (SkeinParameters)parameters;
}
else
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("Invalid parameter passed to Skein MAC init - " + parameters.GetType().Name);
}
skeinParameters = new SkeinParameters.Builder().SetKey(((KeyParameter)parameters).GetKey()).Build();
}
if (skeinParameters.GetKey() == null)
{
throw new ArgumentException("Skein MAC requires a key parameter.");
}
this.engine.Init(skeinParameters);
}
/**
* initialise a CAST cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("Invalid parameter passed to "+ AlgorithmName +" init - " + parameters.GetType().ToString());
_encrypting = forEncryption;
_workingKey = ((KeyParameter)parameters).GetKey();
SetKey(_workingKey);
}
public virtual void Init(bool forEncryption, ICipherParameters parameters)
{
ICipherParameters cipherParameters = parameters;
if (parameters is ParametersWithIV)
{
this.iv = ((ParametersWithIV)parameters).GetIV();
cipherParameters = ((ParametersWithIV)parameters).Parameters;
}
else
{
this.iv = new byte[0];
}
if (cipherParameters is KeyParameter)
{
this.key = ((KeyParameter)cipherParameters).GetKey();
this.Init();
this.initialised = true;
return;
}
throw new ArgumentException("Invalid parameter passed to HC128 init - " + parameters.GetType().Name, "parameters");
}
/**
* initialise a DESede cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public override void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters == null)
{
return; // already initialised
}
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to DESede init - " + parameters.GetType().ToString());
}
byte[] keyMaster = ((KeyParameter)parameters).GetKey();
if (keyMaster.Length != 24 && keyMaster.Length != 16)
{
throw new ArgumentException("key size must be 16 or 24 bytes.");
}
this.forEncryption = forEncryption;
byte[] key1 = new byte[8];
Array.Copy(keyMaster, 0, key1, 0, key1.Length);
workingKey1 = GenerateWorkingKey(forEncryption, key1);
byte[] key2 = new byte[8];
Array.Copy(keyMaster, 8, key2, 0, key2.Length);
workingKey2 = GenerateWorkingKey(!forEncryption, key2);
if (keyMaster.Length == 24)
{
byte[] key3 = new byte[8];
Array.Copy(keyMaster, 16, key3, 0, key3.Length);
workingKey3 = GenerateWorkingKey(forEncryption, key3);
}
else // 16 byte key
{
workingKey3 = workingKey1;
}
// note: blockCount can only go to zero on cipher initialization.
blockCount = 0;
}
public void Init(bool forEncryption, ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to Twofish init - " + parameters.GetType().ToString());
}
this.encrypting = forEncryption;
this.workingKey = ((KeyParameter)parameters).GetKey();
this.k64Cnt = this.workingKey.Length / 8;
this.SetKey(this.workingKey);
}
/**
* initialise a RC5-64 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(typeof(RC5Parameters).IsInstanceOfType(parameters)))
{
throw new ArgumentException("invalid parameter passed to RC564 init - " + parameters.GetType().ToString());
}
RC5Parameters p = (RC5Parameters)parameters;
this.forEncryption = forEncryption;
_noRounds = p.Rounds;
SetKey(p.GetKey());
}
/**
* initialise a RC5-32 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to RC6 init - " + parameters.GetType().ToString());
}
this.forEncryption = forEncryption;
KeyParameter p = (KeyParameter)parameters;
SetKey(p.GetKey());
}
/**
* initialise a RC2 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
this.encrypting = forEncryption;
if (parameters is RC2Parameters)
{
RC2Parameters param = (RC2Parameters)parameters;
workingKey = GenerateWorkingKey(param.GetKey(), param.EffectiveKeyBits);
}
else if (parameters is KeyParameter)
{
KeyParameter param = (KeyParameter)parameters;
byte[] key = param.GetKey();
workingKey = GenerateWorkingKey(key, key.Length * 8);
}
else
{
throw new ArgumentException("invalid parameter passed to RC2 init - " + parameters.GetType().Name);
}
}
/**
* initialise an Gost28147 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters is ParametersWithSBox)
{
ParametersWithSBox param = (ParametersWithSBox)parameters;
//
// Set the S-Box
//
Array.Copy(param.GetSBox(), 0, this.S, 0, param.GetSBox().Length);
//
// set key if there is one
//
if (param.Parameters != null)
{
workingKey = generateWorkingKey(forEncryption,
((KeyParameter)param.Parameters).GetKey());
}
}
else if (parameters is KeyParameter)
{
workingKey = generateWorkingKey(forEncryption,
((KeyParameter)parameters).GetKey());
}
else
{
throw new ArgumentException("invalid parameter passed to Gost28147 init - " + parameters.GetType().Name);
}
}
public override void Init(bool forEncryption, ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to DESede init - " + parameters.GetType().ToString());
}
byte[] key = ((KeyParameter)parameters).GetKey();
if (key.Length != 24 && key.Length != 16)
{
throw new ArgumentException("key size must be 16 or 24 bytes.");
}
this.forEncryption = forEncryption;
byte[] array = new byte[8];
Array.Copy(key, 0, array, 0, array.Length);
workingKey1 = DesEngine.GenerateWorkingKey(forEncryption, array);
byte[] array2 = new byte[8];
Array.Copy(key, 8, array2, 0, array2.Length);
workingKey2 = DesEngine.GenerateWorkingKey(!forEncryption, array2);
if (key.Length == 24)
{
byte[] array3 = new byte[8];
Array.Copy(key, 16, array3, 0, array3.Length);
workingKey3 = DesEngine.GenerateWorkingKey(forEncryption, array3);
}
else
{
workingKey3 = workingKey1;
}
}
/**
* initialise a Rijndael cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
var parameter = parameters as KeyParameter;
if (parameter != null)
{
workingKey = GenerateWorkingKey(parameter.GetKey());
this.forEncryption = forEncryption;
return;
}
throw new ArgumentException("invalid parameter passed to Rijndael init - " + parameters.GetType());
}
/**
* initialise an Gost28147 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters is ParametersWithSBox)
{
ParametersWithSBox param = (ParametersWithSBox)parameters;
//
// Set the S-Box
//
byte[] sBox = param.GetSBox();
if (sBox.Length != Sbox_Default.Length)
throw new ArgumentException("invalid S-box passed to GOST28147 init");
this.S = Arrays.Clone(sBox);
//
// set key if there is one
//
if (param.Parameters != null)
{
workingKey = generateWorkingKey(forEncryption,
((KeyParameter)param.Parameters).GetKey());
}
}
else if (parameters is KeyParameter)
{
workingKey = generateWorkingKey(forEncryption,
((KeyParameter)parameters).GetKey());
}
else if (parameters != null)
{
throw new ArgumentException("invalid parameter passed to Gost28147 init - " + parameters.GetType().Name);
}
}
/**
* initialise a DESede cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public override void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to DESede init - " + parameters.GetType().ToString());
}
byte[] keyMaster = ((KeyParameter)parameters).GetKey();
this.forEncryption = forEncryption;
byte[] key1 = new byte[8];
Array.Copy(keyMaster, 0, key1, 0, key1.Length);
workingKey1 = GenerateWorkingKey(forEncryption, key1);
byte[] key2 = new byte[8];
Array.Copy(keyMaster, 8, key2, 0, key2.Length);
workingKey2 = GenerateWorkingKey(!forEncryption, key2);
if (keyMaster.Length == 24)
{
byte[] key3 = new byte[8];
Array.Copy(keyMaster, 16, key3, 0, key3.Length);
workingKey3 = GenerateWorkingKey(forEncryption, key3);
}
else // 16 byte key
{
workingKey3 = workingKey1;
}
}
/**
* initialise a RC5-32 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
//TODO: SUSTITUIDO. CAMBIAMOS EL IsInstanceOfType POR UN BLOQUE try - catch
//if (typeof(RC5Parameters).IsInstanceOfType(parameters))
//{
// RC5Parameters p = (RC5Parameters)parameters;
// _noRounds = p.Rounds;
// SetKey(p.GetKey());
//}
//else if (typeof(KeyParameter).GetType().IsInstanceOfType(parameters))
//{
// KeyParameter p = (KeyParameter)parameters;
// SetKey(p.GetKey());
//}
//else
//{
// throw new ArgumentException("invalid parameter passed to RC532 init - " + parameters.GetType().ToString());
//}
//this.forEncryption = forEncryption;
try{
RC5Parameters p = (RC5Parameters)parameters;
_noRounds = p.Rounds;
SetKey(p.GetKey());
}
catch (Exception e){
try
{
KeyParameter p = (KeyParameter)parameters;
SetKey(p.GetKey());
}
catch (Exception e2)
{
throw new ArgumentException("invalid parameter passed to RC532 init - " + parameters.GetType().ToString()+" e:"+e+" : "+e2);
}
}
this.forEncryption = forEncryption;
}
/**
* initialise a Blowfish cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
throw new ArgumentException("invalid parameter passed to Blowfish init - " + parameters.GetType().ToString());
this.encrypting = forEncryption;
this.workingKey = ((KeyParameter)parameters).GetKey();
SetKey(this.workingKey);
}
/**
* initialise a RC5-64 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters == null || !typeof(RC5Parameters).GetTypeInfo().IsAssignableFrom(parameters.GetType().GetTypeInfo()))
{
throw new ArgumentException("invalid parameter passed to RC564 init - " + parameters.GetType().ToString());
}
RC5Parameters p = (RC5Parameters)parameters;
this.forEncryption = forEncryption;
_noRounds = p.Rounds;
SetKey(p.GetKey());
}
public virtual void Init(bool forEncryption, ICipherParameters parameters)
{
if (parameters is ParametersWithSBox)
{
ParametersWithSBox parametersWithSBox = (ParametersWithSBox)parameters;
byte[] sBox = parametersWithSBox.GetSBox();
if (sBox.Length != Gost28147Engine.Sbox_Default.Length)
{
throw new ArgumentException("invalid S-box passed to GOST28147 init");
}
this.S = Arrays.Clone(sBox);
if (parametersWithSBox.Parameters != null)
{
this.workingKey = this.generateWorkingKey(forEncryption, ((KeyParameter)parametersWithSBox.Parameters).GetKey());
return;
}
}
else
{
if (parameters is KeyParameter)
{
this.workingKey = this.generateWorkingKey(forEncryption, ((KeyParameter)parameters).GetKey());
return;
}
if (parameters != null)
{
throw new ArgumentException("invalid parameter passed to Gost28147 init - " + parameters.GetType().Name);
}
}
}
/**
* initialise a Rijndael cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
var parameter = parameters as KeyParameter;
if (parameter != null)
{
workingKey = GenerateWorkingKey(parameter.GetKey());
this.forEncryption = forEncryption;
return;
}
throw new ArgumentException("invalid parameter passed to Rijndael init - " + parameters.GetType().ToString());
}
public virtual void Init(bool forEncryption, ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to DES init - " + parameters.GetType().ToString());
}
workingKey = GenerateWorkingKey(forEncryption, ((KeyParameter)parameters).GetKey());
}
/**
* initialise a Rijndael cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
//TODO: COMENTADO. NO EXISTE EL TIPO "IsInstanceOfType". VAMOS A SUSTITUIRLO POR UN TRY CATCH
//public void Init(
// bool forEncryption,
// ICipherParameters parameters)
//{
// if (typeof(KeyParameter).IsInstanceOfType(parameters))
// {
// workingKey = GenerateWorkingKey(((KeyParameter)parameters).GetKey());
// this.forEncryption = forEncryption;
// return;
// }
// throw new ArgumentException("invalid parameter passed to Rijndael init - " + parameters.GetType().ToString());
//}
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
try
{
workingKey = GenerateWorkingKey(((KeyParameter)parameters).GetKey());
this.forEncryption = forEncryption;
return;
}
catch (Exception e)
{
throw new ArgumentException("invalid parameter passed to Rijndael init - " + parameters.GetType().ToString()+" e:"+e);
}
}
/**
* initialise an AES cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
KeyParameter keyParameter = parameters as KeyParameter;
if (keyParameter == null)
{
throw new ArgumentException("invalid parameter passed to AES init - " + parameters.GetType().Name);
}
WorkingKey = GenerateWorkingKey(keyParameter.GetKey(), forEncryption);
this.forEncryption = forEncryption;
}
public virtual void Init(bool forEncryption, ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to SKIPJACK init - " + parameters.GetType().ToString());
}
byte[] key = ((KeyParameter)parameters).GetKey();
this.encrypting = forEncryption;
this.key0 = new int[32];
this.key1 = new int[32];
this.key2 = new int[32];
this.key3 = new int[32];
for (int i = 0; i < 32; i++)
{
this.key0[i] = (int)(key[i * 4 % 10] & 255);
this.key1[i] = (int)(key[(i * 4 + 1) % 10] & 255);
this.key2[i] = (int)(key[(i * 4 + 2) % 10] & 255);
this.key3[i] = (int)(key[(i * 4 + 3) % 10] & 255);
}
}
public virtual void Init(bool forEncryption, ICipherParameters parameters)
{
if (typeof(KeyParameter).IsInstanceOfType(parameters))
{
workingKey = GenerateWorkingKey(((KeyParameter)parameters).GetKey());
this.forEncryption = forEncryption;
return;
}
throw new ArgumentException("invalid parameter passed to Rijndael init - " + parameters.GetType().ToString());
}
/**
* initialise a Rijndael cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (typeof(KeyParameter).IsInstanceOfType(parameters))
{
workingKey = GenerateWorkingKey(((KeyParameter)parameters).GetKey());
this.forEncryption = forEncryption;
return;
}
throw new ArgumentException("invalid parameter passed to Rijndael init - " + parameters.GetType().ToString());
}
/**
* initialise a CAST cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("Invalid parameter passed to " + AlgorithmName + " init - " + parameters.GetType().ToString());
}
_encrypting = forEncryption;
_workingKey = ((KeyParameter)parameters).GetKey();
SetKey(_workingKey);
}
/**
* initialise an AES cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
KeyParameter keyParameter = parameters as KeyParameter;
if (keyParameter == null)
throw new ArgumentException("invalid parameter passed to AES init - " + parameters.GetType().Name);
WorkingKey = GenerateWorkingKey(keyParameter.GetKey(), forEncryption);
this.forEncryption = forEncryption;
}
/**
* initialise a SKIPJACK cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (!(parameters is KeyParameter))
{
throw new ArgumentException("invalid parameter passed to SKIPJACK init - " + parameters.GetType().ToString());
}
byte[] keyBytes = ((KeyParameter)parameters).GetKey();
this.encrypting = forEncryption;
this.key0 = new int[32];
this.key1 = new int[32];
this.key2 = new int[32];
this.key3 = new int[32];
//
// expand the key to 128 bytes in 4 parts (saving us a modulo, multiply
// and an addition).
//
for (int i = 0; i < 32; i++)
{
key0[i] = keyBytes[(i * 4) % 10] & 0xff;
key1[i] = keyBytes[(i * 4 + 1) % 10] & 0xff;
key2[i] = keyBytes[(i * 4 + 2) % 10] & 0xff;
key3[i] = keyBytes[(i * 4 + 3) % 10] & 0xff;
}
}
/**
* initialise a RC5-32 cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters != null && typeof(RC5Parameters).GetTypeInfo().IsAssignableFrom(parameters.GetType().GetTypeInfo()))
{
RC5Parameters p = (RC5Parameters)parameters;
_noRounds = p.Rounds;
SetKey(p.GetKey());
}
else if (parameters != null && typeof(KeyParameter).GetTypeInfo().IsAssignableFrom(parameters.GetType().GetTypeInfo()))
{
KeyParameter p = (KeyParameter)parameters;
SetKey(p.GetKey());
}
else
{
throw new ArgumentException("invalid parameter passed to RC532 init - " + parameters.GetType().ToString());
}
this.forEncryption = forEncryption;
}
/**
* initialise a Rijndael cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param parameters the parameters required to set up the cipher.
* @exception ArgumentException if the parameters argument is
* inappropriate.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (parameters != null && typeof(KeyParameter).GetTypeInfo().IsAssignableFrom(parameters.GetType().GetTypeInfo()))
{
workingKey = GenerateWorkingKey(((KeyParameter)parameters).GetKey());
this.forEncryption = forEncryption;
return;
}
throw new ArgumentException("invalid parameter passed to Rijndael init - " + parameters.GetType().ToString());
}
