/// <exception cref="System.Exception"></exception>
public override void Init(int mode, byte[] key, byte[] iv)
{
string pad = "NoPadding";
byte[] tmp;
if (iv.Length > ivsize)
{
tmp = new byte[ivsize];
System.Array.Copy(iv, 0, tmp, 0, tmp.Length);
iv = tmp;
}
if (key.Length > bsize)
{
tmp = new byte[bsize];
System.Array.Copy(key, 0, tmp, 0, tmp.Length);
key = tmp;
}
try
{
SecretKeySpec keyspec = new SecretKeySpec(key, "AES");
cipher = Sharpen.Cipher.GetInstance("AES/CBC/" + pad);
cipher.Init((mode == ENCRYPT_MODE ? Sharpen.Cipher.ENCRYPT_MODE : Sharpen.Cipher.
DECRYPT_MODE), keyspec, new IvParameterSpec(iv));
}
catch (Exception e)
{
cipher = null;
throw;
}
}
/// <exception cref="System.Exception"></exception>
public override void Init(int mode, byte[] key, byte[] iv)
{
byte[] tmp;
if (key.Length > bsize)
{
tmp = new byte[bsize];
System.Array.Copy(key, 0, tmp, 0, tmp.Length);
key = tmp;
}
try
{
cipher = Sharpen.Cipher.GetInstance("RC4");
SecretKeySpec _key = new SecretKeySpec(key, "RC4");
cipher.Init((mode == ENCRYPT_MODE ? Sharpen.Cipher.ENCRYPT_MODE : Sharpen.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;
}
}
/// <exception cref="System.Exception"></exception>
public override void Init(int mode, byte[] key, byte[] iv)
{
byte[] tmp;
if (key.Length > bsize)
{
tmp = new byte[bsize];
System.Array.Copy(key, 0, tmp, 0, tmp.Length);
key = tmp;
}
try
{
cipher = Sharpen.Cipher.GetInstance("RC4");
SecretKeySpec _key = new SecretKeySpec(key, "RC4");
cipher.Init((mode == ENCRYPT_MODE ? Sharpen.Cipher.ENCRYPT_MODE : Sharpen.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;
}
}
/// <exception cref="System.Exception"></exception>
public override void Init(int mode, byte[] key, byte[] iv)
{
string pad = "NoPadding";
//if(padding) pad="PKCS5Padding";
byte[] tmp;
if (iv.Length > ivsize)
{
tmp = new byte[ivsize];
System.Array.Copy(iv, 0, tmp, 0, tmp.Length);
iv = tmp;
}
if (key.Length > bsize)
{
tmp = new byte[bsize];
System.Array.Copy(key, 0, tmp, 0, tmp.Length);
key = tmp;
}
try
{
cipher = Sharpen.Cipher.GetInstance("DESede/CTR/" + pad);
DESedeKeySpec keyspec = new DESedeKeySpec(key);
SecretKeyFactory keyfactory = SecretKeyFactory.GetInstance("DESede");
SecretKey _key = keyfactory.GenerateSecret(keyspec);
cipher.Init((mode == ENCRYPT_MODE ? Sharpen.Cipher.ENCRYPT_MODE : Sharpen.Cipher.
DECRYPT_MODE), _key, new IvParameterSpec(iv));
}
catch (Exception e)
{
cipher = null;
throw;
}
}
/// <exception cref="System.Exception"></exception>
public override void Init(int mode, byte[] key, byte[] iv)
{
string pad = "NoPadding";
// if(padding) pad="PKCS5Padding";
byte[] tmp;
if (iv.Length > ivsize)
{
tmp = new byte[ivsize];
System.Array.Copy(iv, 0, tmp, 0, tmp.Length);
iv = tmp;
}
if (key.Length > bsize)
{
tmp = new byte[bsize];
System.Array.Copy(key, 0, tmp, 0, tmp.Length);
key = tmp;
}
try
{
SecretKeySpec skeySpec = new SecretKeySpec(key, "Blowfish");
cipher = Sharpen.Cipher.GetInstance("Blowfish/CBC/" + pad);
cipher.Init((mode == ENCRYPT_MODE ? Sharpen.Cipher.ENCRYPT_MODE : Sharpen.Cipher.
DECRYPT_MODE), skeySpec, new IvParameterSpec(iv));
}
catch (Exception e)
{
throw;
}
}
/// <exception cref="System.Exception"></exception>
public override void Init(int mode, byte[] key, byte[] iv)
{
string pad = "NoPadding";
//if(padding) pad="PKCS5Padding";
byte[] tmp;
if (iv.Length > ivsize)
{
tmp = new byte[ivsize];
System.Array.Copy(iv, 0, tmp, 0, tmp.Length);
iv = tmp;
}
if (key.Length > bsize)
{
tmp = new byte[bsize];
System.Array.Copy(key, 0, tmp, 0, tmp.Length);
key = tmp;
}
try
{
cipher = Sharpen.Cipher.GetInstance("DESede/CTR/" + pad);
DESedeKeySpec keyspec = new DESedeKeySpec(key);
SecretKeyFactory keyfactory = SecretKeyFactory.GetInstance("DESede");
SecretKey _key = keyfactory.GenerateSecret(keyspec);
cipher.Init((mode == ENCRYPT_MODE ? Sharpen.Cipher.ENCRYPT_MODE : Sharpen.Cipher.
DECRYPT_MODE), _key, new IvParameterSpec(iv));
}
catch (Exception e)
{
cipher = null;
throw;
}
}
/// <exception cref="System.IO.IOException"></exception>
internal override InputStream Decrypt(InputStream @in)
{
try
{
Sharpen.Cipher c = Sharpen.Cipher.GetInstance(algorithmName);
c.Init(Sharpen.Cipher.DECRYPT_MODE, skey, aspec);
return(new CipherInputStream(@in, c));
}
catch (NoSuchAlgorithmException e)
{
throw Error(e);
}
catch (NoSuchPaddingException e)
{
throw Error(e);
}
catch (InvalidKeyException e)
{
throw Error(e);
}
catch (InvalidAlgorithmParameterException e)
{
throw Error(e);
}
}
/// <exception cref="System.IO.IOException"></exception>
internal override OutputStream Encrypt(OutputStream os)
{
try
{
Sharpen.Cipher c = Sharpen.Cipher.GetInstance(algorithmName);
c.Init(Sharpen.Cipher.ENCRYPT_MODE, skey, aspec);
return(new CipherOutputStream(os, c));
}
catch (NoSuchAlgorithmException e)
{
throw Error(e);
}
catch (NoSuchPaddingException e)
{
throw Error(e);
}
catch (InvalidKeyException e)
{
throw Error(e);
}
catch (InvalidAlgorithmParameterException e)
{
throw Error(e);
}
}
/// <exception cref="System.Exception"></exception>
public override void Init(int mode, byte[] key, byte[] iv)
{
string pad = "NoPadding";
byte[] tmp;
if (key.Length > bsize)
{
tmp = new byte[bsize];
System.Array.Copy(key, 0, tmp, 0, tmp.Length);
key = tmp;
}
try
{
cipher = Sharpen.Cipher.GetInstance("RC4");
SecretKeySpec _key = new SecretKeySpec(key, "RC4");
cipher.Init((mode == ENCRYPT_MODE ? Sharpen.Cipher.ENCRYPT_MODE : Sharpen.Cipher.
DECRYPT_MODE), _key);
}
catch (Exception e)
{
cipher = null;
throw;
}
}
/// <exception cref="System.Exception"></exception>
public override void Init(int mode, byte[] key, byte[] iv)
{
string pad = "NoPadding";
byte[] tmp;
if (key.Length > bsize)
{
tmp = new byte[bsize];
System.Array.Copy(key, 0, tmp, 0, tmp.Length);
key = tmp;
}
try
{
cipher = Sharpen.Cipher.GetInstance("RC4");
SecretKeySpec _key = new SecretKeySpec(key, "RC4");
cipher.Init((mode == ENCRYPT_MODE ? Sharpen.Cipher.ENCRYPT_MODE : Sharpen.Cipher.
DECRYPT_MODE), _key);
}
catch (Exception e)
{
cipher = null;
throw;
}
}
