private byte[] NonMultipleOfBlockSize_Decrypt (ICryptoTransform ct, byte[] data)
{
DebugStream stream = new DebugStream (data);
CryptoStream CryptStream = new CryptoStream (stream, ct, CryptoStreamMode.Read);
int len = 0;
long myLength = 0;
byte[] Buffer = new Byte [1024];
DebugStream fout = new DebugStream ();
// each returned block must be 1023 bytes long
// even if this isn't a multiple of the block size
while ((len = CryptStream.Read (Buffer, 0, 1023)) != 0) {
fout.Write (Buffer, 0, len);
fout.Flush ();
myLength = myLength + len;
}
byte[] result = fout.ToArray ();
CryptStream.Close ();
stream.Close ();
return result;
}
public void WriteByteReadByte ()
{
DebugStream original = new DebugStream (Encoding.Unicode.GetBytes ("ximian"));
DebugStream encrypted = new DebugStream ();
byte[] key = {0, 1, 2, 3, 4, 5, 6, 7};
byte[] iv = {0, 1, 2, 3, 4, 5, 6, 7};
DES des = DES.Create ();
cs = new CryptoStream (encrypted, des.CreateEncryptor (key, iv), CryptoStreamMode.Write);
int data;
while ((data = original.ReadByte ()) != -1)
cs.WriteByte((byte) data);
cs.Close ();
byte[] result = encrypted.ToArray ();
Assert.AreEqual ("18-EA-93-3F-20-86-D2-AA-78-02-D7-6F-E4-47-17-9C", BitConverter.ToString (result), "Encrypted");
encrypted = new DebugStream (result);
DebugStream decrypted = new DebugStream ();
cs = new CryptoStream (encrypted, des.CreateDecryptor (key, iv), CryptoStreamMode.Read);
while ((data = cs.ReadByte ()) != -1)
decrypted.WriteByte((byte) data);
cs.Close ();
decrypted.Close ();
Assert.AreEqual ("ximian", Encoding.Unicode.GetString (decrypted.ToArray ()), "W/R Byte Roundtrip");
}
// Adapted from Subba Rao Thirumoorthy email on mono-devel-list (december 2003)
private byte[] NonMultipleOfBlockSize_Encrypt (ICryptoTransform ct, byte[] data)
{
DebugStream stream = new DebugStream ();
CryptoStream CryptStream = new CryptoStream (stream, ct, CryptoStreamMode.Write);
int len = 0;
long myLength = 0;
byte[] Buffer = new byte [1024];
DebugStream fout = new DebugStream (data);
while (myLength < data.Length) {
len = fout.Read (Buffer, 0, 1023);
if (len == 0)
break;
CryptStream.Write (Buffer, 0, len);
CryptStream.Flush ();
myLength = myLength + len;
}
CryptStream.FlushFinalBlock ();
// we must ensure that the result is correct
Assert.AreEqual (64, len, "Length(final)");
byte[] result = stream.ToArray ();
string end = BitConverter.ToString (result, 65520, 16);
Assert.AreEqual ("04-70-19-1D-28-C5-BD-9A-23-C6-60-E2-28-96-38-65", end, "End part");
CryptStream.Close();
stream.Close();
return result;
}
