public void TransformFinalBlock_InputCount_Negative()
{
byte[] input = new byte [1];
ARC4Managed rc4 = new ARC4Managed();
rc4.TransformFinalBlock(input, 0, -1);
}
public void TransformFinalBlock_InputCount_Overflow()
{
byte[] input = new byte [1];
ARC4Managed rc4 = new ARC4Managed();
rc4.TransformFinalBlock(input, 1, Int32.MaxValue);
}
public void TransformBlock_OutputBuffer_Null()
{
byte[] input = new byte [1];
ARC4Managed rc4 = new ARC4Managed();
rc4.TransformBlock(input, 0, 1, null, 0);
}
public void TransformBlock_OutputOffset_Overflow()
{
byte[] input = new byte [1];
byte[] output = new byte [1];
ARC4Managed rc4 = new ARC4Managed();
rc4.TransformBlock(input, 0, 1, output, Int32.MaxValue);
}
public void TransformBlock_OutputOffset_Negative()
{
byte[] input = new byte [1];
byte[] output = new byte [1];
ARC4Managed rc4 = new ARC4Managed();
rc4.TransformBlock(input, 0, 1, output, -1);
}
public void DefaultProperties()
{
ARC4Managed rc4 = new ARC4Managed();
Assert.IsFalse(rc4.CanReuseTransform, "CanReuseTransform");
Assert.IsTrue(rc4.CanTransformMultipleBlocks, "CanTransformMultipleBlocks");
Assert.AreEqual(1, rc4.InputBlockSize, "InputBlockSize");
Assert.AreEqual(1, rc4.OutputBlockSize, "OutputBlockSize");
}
public void DefaultProperties()
{
ARC4Managed rc4 = new ARC4Managed();
Assert("CanReuseTransform", !rc4.CanReuseTransform);
Assert("CanTransformMultipleBlocks", rc4.CanTransformMultipleBlocks);
AssertEquals("InputBlockSize", 1, rc4.InputBlockSize);
AssertEquals("OutputBlockSize", 1, rc4.OutputBlockSize);
}
public void DefaultSizes()
{
ARC4Managed rc4 = new ARC4Managed();
rc4.GenerateKey();
rc4.GenerateIV();
Assert.AreEqual(16, rc4.Key.Length, "Key.Length");
Assert.AreEqual(128, rc4.KeySize, "KeySize");
Assert.AreEqual(0, rc4.IV.Length, "IV.Length");
}
public void DefaultSizes()
{
ARC4Managed rc4 = new ARC4Managed();
rc4.GenerateKey();
rc4.GenerateIV();
AssertEquals("Key.Length", 16, rc4.Key.Length);
AssertEquals("KeySize", 128, rc4.KeySize);
AssertEquals("IV.Length", 0, rc4.IV.Length);
}
public void SSLClient()
{
byte[] data = { 0x14, 0x00, 0x00, 0x24, 0xf2, 0x40, 0x10, 0x3f, 0x74, 0x63, 0xea, 0xe8, 0x7a, 0x27, 0x23, 0x56, 0x5f, 0x59, 0x07, 0xd2, 0xa3, 0x79, 0x5d, 0xb7, 0x8b, 0x94, 0xdb, 0xcf, 0xfa, 0xf5, 0x18, 0x22, 0x15, 0x7b, 0xf2, 0x4a, 0x96, 0x52, 0x9a, 0x0e, 0xd3, 0x09, 0xde, 0x28, 0x84, 0xa7, 0x07, 0x5c, 0x7c, 0x0c, 0x08, 0x85, 0x6b, 0x4f, 0x63, 0x04 };
ARC4Managed rc4 = new ARC4Managed();
rc4.Key = clientWriteKey;
// encrypt inplace (in same buffer)
rc4.TransformBlock(data, 0, data.Length, data, 0);
byte[] expectedData = { 0xed, 0x37, 0x7f, 0x16, 0xd3, 0x11, 0xe8, 0xa3, 0xe1, 0x2a, 0x20, 0xb7, 0x88, 0xf6, 0x11, 0xf3, 0xa6, 0x7d, 0x37, 0xf7, 0x17, 0xac, 0x67, 0x20, 0xb8, 0x0e, 0x88, 0xd1, 0xa0, 0xc6, 0x83, 0xe4, 0x80, 0xe8, 0xc7, 0xe3, 0x0b, 0x91, 0x29, 0x30, 0x29, 0xe4, 0x28, 0x47, 0xb7, 0x40, 0xa4, 0xd1, 0x3c, 0xda, 0x82, 0xb7, 0xb3, 0x9f, 0x67, 0x10 };
AssertEquals("RC4 - Client's Finished Handshake", expectedData, data);
}
public void SSLServer()
{
byte[] encryptedData = { 0x54, 0x3c, 0xe1, 0xe7, 0x4d, 0x77, 0x76, 0x62, 0x86, 0xfa, 0x4e, 0x0a, 0x6f, 0x5f, 0x6a, 0x3d, 0x43, 0x26, 0xf4, 0xad, 0x8d, 0x3e, 0x09, 0x0b, 0x2b, 0xf7, 0x9f, 0x49, 0x44, 0x92, 0xfb, 0xa9, 0xa4, 0xb0, 0x5a, 0xd8, 0x72, 0x77, 0x6e, 0x8b, 0xb3, 0x78, 0xfb, 0xda, 0xe0, 0x25, 0xef, 0xb3, 0xf5, 0xa7, 0x90, 0x08, 0x6d, 0x60, 0xd5, 0x4e };
ARC4Managed rc4 = new ARC4Managed();
rc4.Key = serverWriteKey;
// decrypt inplace (in same buffer)
rc4.TransformBlock(encryptedData, 0, encryptedData.Length, encryptedData, 0);
byte[] expectedData = { 0x14, 0x00, 0x00, 0x24, 0xb7, 0xcc, 0xd6, 0x05, 0x6b, 0xfc, 0xfa, 0x6d, 0xfa, 0xdd, 0x76, 0x81, 0x45, 0x36, 0xe4, 0xf4, 0x26, 0x35, 0x72, 0x2c, 0xec, 0x87, 0x62, 0x1f, 0x55, 0x08, 0x05, 0x4f, 0xc8, 0xf5, 0x7c, 0x49, 0xe2, 0xee, 0xc5, 0xba, 0xbd, 0x69, 0x27, 0x3b, 0xd0, 0x13, 0x23, 0x52, 0xed, 0xec, 0x11, 0x55, 0xd8, 0xb9, 0x90, 0x8c };
AssertEquals("RC4 - Server's Finished Handshake", expectedData, encryptedData);
}
public void Vector2()
{
byte[] key = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
byte[] input = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
byte[] expected = { 0xde, 0x18, 0x89, 0x41, 0xa3, 0x37, 0x5d, 0x3a };
ARC4Managed rc4 = new ARC4Managed();
rc4.Key = key;
ICryptoTransform stream = rc4.CreateEncryptor();
byte[] output = stream.TransformFinalBlock(input, 0, input.Length);
AssertEquals("RC4 - Test Vector 2", expected, output);
}
public void Vector1()
{
byte[] key = { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef };
byte[] input = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
byte[] expected = { 0x74, 0x94, 0xc2, 0xe7, 0x10, 0x4b, 0x08, 0x79 };
ARC4Managed rc4 = new ARC4Managed();
rc4.Key = key;
ICryptoTransform stream = rc4.CreateEncryptor();
byte[] output = stream.TransformFinalBlock(input, 0, input.Length);
AssertEquals("RC4 - Test Vector 1", expected, output);
}
public void Vector3()
{
byte[] key = { 0xef, 0x01, 0x23, 0x45 };
byte[] input = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
byte[] expected = { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf, 0xbd, 0x61 };
ARC4Managed rc4 = new ARC4Managed();
rc4.Key = key;
ICryptoTransform stream = rc4.CreateEncryptor();
byte[] output = stream.TransformFinalBlock(input, 0, input.Length);
AssertEquals("RC4 - Test Vector 3", expected, output);
}
public ARC4Crypt(HashAlgorithm hash, bool isServer)
{
Contract.Requires(hash != null);
var encKey = isServer ? _serverEncClientDec : _serverDecClientEnc;
var decKey = isServer ? _serverDecClientEnc : _serverEncClientDec;
_encrypt = new ARC4Managed();
_decrypt = new ARC4Managed();
_encrypt.Key = hash.ComputeHash(encKey);
_decrypt.Key = hash.ComputeHash(decKey);
var buffer = new byte[DropN];
var length = buffer.Length;
// Drop the first N bytes in the stream, to prevent the FMS attack.
_encrypt.TransformFinalBlock(buffer, 0, length);
_decrypt.TransformFinalBlock(buffer, 0, length);
}
public override void HandlePacket(Client context, byte[] data, uint position, uint size)
{
if (context.inputARC4 != null)
{
return;
}
if (size < 0x80)
{
return;
}
// Extract the first 0x80 bytes into a separate array
byte[] cryptedBlob = new byte[0x80];
Array.Copy(data, position, cryptedBlob, 0, 0x80);
Array.Reverse(cryptedBlob);
// FIXME
if (Client.rsaCsp == null)
{
Client.rsaCsp = new RSACryptoServiceProvider();
byte[] rsaBlob = File.ReadAllBytes("privateKey.blob");
Client.rsaCsp.ImportCspBlob(rsaBlob);
}
RSAPKCS1KeyExchangeDeformatter pkcs = new RSAPKCS1KeyExchangeDeformatter(Client.rsaCsp);
byte[] decryptedBlob = null;
try
{
decryptedBlob = pkcs.DecryptKeyExchange(cryptedBlob);
}
catch (CryptographicException ex)
{
Logger.WriteException("Error occured when decrypting the key exchange", ex);
context.Socket.Close();
return;
}
// Also a failure.
if (decryptedBlob.Length < 0x20)
{
return;
}
// Extract the RC4 key
byte[] arc4Key = new byte[16];
Array.Copy(decryptedBlob, 0x10, arc4Key, 0, 0x10);
// Create three RC4 mungers
ARC4Managed arc4 = new ARC4Managed();
arc4.Key = arc4Key;
context.inputARC4 = arc4.CreateDecryptor();
arc4 = new ARC4Managed();
arc4.Key = arc4Key;
context.outputARC4 = arc4.CreateEncryptor();
arc4 = new ARC4Managed();
arc4.Key = arc4Key;
var tempDecryptor = arc4.CreateDecryptor();
// Also, grab the init token for the client
byte[] decryptedToken = new byte[16];
tempDecryptor.TransformBlock(decryptedBlob, 0, 0x10, decryptedToken, 0);
context.SendPacket(0x11, 0xC, 0, decryptedToken);
}
public void TransformFinalBlock_InputBuffer_Null()
{
ARC4Managed rc4 = new ARC4Managed();
rc4.TransformFinalBlock(null, 0, 1);
}
public void Vector4()
{
byte[] key = { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef };
byte[] input = new byte [512];
for (int i = 0; i < input.Length; i++)
{
input [i] = 0x01;
}
byte[] expected = { 0x75, 0x95, 0xc3, 0xe6, 0x11, 0x4a, 0x09, 0x78, 0x0c, 0x4a, 0xd4,
0x52, 0x33, 0x8e, 0x1f, 0xfd, 0x9a, 0x1b, 0xe9, 0x49, 0x8f,
0x81, 0x3d, 0x76, 0x53, 0x34, 0x49, 0xb6, 0x77, 0x8d, 0xca,
0xd8, 0xc7, 0x8a, 0x8d, 0x2b, 0xa9, 0xac, 0x66, 0x08, 0x5d,
0x0e, 0x53, 0xd5, 0x9c, 0x26, 0xc2, 0xd1, 0xc4, 0x90, 0xc1,
0xeb, 0xbe, 0x0c, 0xe6, 0x6d, 0x1b, 0x6b, 0x1b, 0x13, 0xb6,
0xb9, 0x19, 0xb8, 0x47, 0xc2, 0x5a, 0x91, 0x44, 0x7a, 0x95,
0xe7, 0x5e, 0x4e, 0xf1, 0x67, 0x79, 0xcd, 0xe8, 0xbf, 0x0a,
0x95, 0x85, 0x0e, 0x32, 0xaf, 0x96, 0x89, 0x44, 0x4f, 0xd3,
0x77, 0x10, 0x8f, 0x98, 0xfd, 0xcb, 0xd4, 0xe7, 0x26, 0x56,
0x75, 0x00, 0x99, 0x0b, 0xcc, 0x7e, 0x0c, 0xa3, 0xc4, 0xaa,
0xa3, 0x04, 0xa3, 0x87, 0xd2, 0x0f, 0x3b, 0x8f, 0xbb, 0xcd,
0x42, 0xa1, 0xbd, 0x31, 0x1d, 0x7a, 0x43, 0x03, 0xdd, 0xa5,
0xab, 0x07, 0x88, 0x96, 0xae, 0x80, 0xc1, 0x8b, 0x0a, 0xf6,
0x6d, 0xff, 0x31, 0x96, 0x16, 0xeb, 0x78, 0x4e, 0x49, 0x5a,
0xd2, 0xce, 0x90, 0xd7, 0xf7, 0x72, 0xa8, 0x17, 0x47, 0xb6,
0x5f, 0x62, 0x09, 0x3b, 0x1e, 0x0d, 0xb9, 0xe5, 0xba, 0x53,
0x2f, 0xaf, 0xec, 0x47, 0x50, 0x83, 0x23, 0xe6, 0x71, 0x32,
0x7d, 0xf9, 0x44, 0x44, 0x32, 0xcb, 0x73, 0x67, 0xce, 0xc8,
0x2f, 0x5d, 0x44, 0xc0, 0xd0, 0x0b, 0x67, 0xd6, 0x50, 0xa0,
0x75, 0xcd, 0x4b, 0x70, 0xde, 0xdd, 0x77, 0xeb, 0x9b, 0x10,
0x23, 0x1b, 0x6b, 0x5b, 0x74, 0x13, 0x47, 0x39, 0x6d, 0x62,
0x89, 0x74, 0x21, 0xd4, 0x3d, 0xf9, 0xb4, 0x2e, 0x44, 0x6e,
0x35, 0x8e, 0x9c, 0x11, 0xa9, 0xb2, 0x18, 0x4e, 0xcb, 0xef,
0x0c, 0xd8, 0xe7, 0xa8, 0x77, 0xef, 0x96, 0x8f, 0x13, 0x90,
0xec, 0x9b, 0x3d, 0x35, 0xa5, 0x58, 0x5c, 0xb0, 0x09, 0x29,
0x0e, 0x2f, 0xcd, 0xe7, 0xb5, 0xec, 0x66, 0xd9, 0x08, 0x4b,
0xe4, 0x40, 0x55, 0xa6, 0x19, 0xd9, 0xdd, 0x7f, 0xc3, 0x16,
0x6f, 0x94, 0x87, 0xf7, 0xcb, 0x27, 0x29, 0x12, 0x42, 0x64,
0x45, 0x99, 0x85, 0x14, 0xc1, 0x5d, 0x53, 0xa1, 0x8c, 0x86,
0x4c, 0xe3, 0xa2, 0xb7, 0x55, 0x57, 0x93, 0x98, 0x81, 0x26,
0x52, 0x0e, 0xac, 0xf2, 0xe3, 0x06, 0x6e, 0x23, 0x0c, 0x91,
0xbe, 0xe4, 0xdd, 0x53, 0x04, 0xf5, 0xfd, 0x04, 0x05, 0xb3,
0x5b, 0xd9, 0x9c, 0x73, 0x13, 0x5d, 0x3d, 0x9b, 0xc3, 0x35,
0xee, 0x04, 0x9e, 0xf6, 0x9b, 0x38, 0x67, 0xbf, 0x2d, 0x7b,
0xd1, 0xea, 0xa5, 0x95, 0xd8, 0xbf, 0xc0, 0x06, 0x6f, 0xf8,
0xd3, 0x15, 0x09, 0xeb, 0x0c, 0x6c, 0xaa, 0x00, 0x6c, 0x80,
0x7a, 0x62, 0x3e, 0xf8, 0x4c, 0x3d, 0x33, 0xc1, 0x95, 0xd2,
0x3e, 0xe3, 0x20, 0xc4, 0x0d, 0xe0, 0x55, 0x81, 0x57, 0xc8,
0x22, 0xd4, 0xb8, 0xc5, 0x69, 0xd8, 0x49, 0xae, 0xd5, 0x9d,
0x4e, 0x0f, 0xd7, 0xf3, 0x79, 0x58, 0x6b, 0x4b, 0x7f, 0xf6,
0x84, 0xed, 0x6a, 0x18, 0x9f, 0x74, 0x86, 0xd4, 0x9b, 0x9c,
0x4b, 0xad, 0x9b, 0xa2, 0x4b, 0x96, 0xab, 0xf9, 0x24, 0x37,
0x2c, 0x8a, 0x8f, 0xff, 0xb1, 0x0d, 0x55, 0x35, 0x49, 0x00,
0xa7, 0x7a, 0x3d, 0xb5, 0xf2, 0x05, 0xe1, 0xb9, 0x9f, 0xcd,
0x86, 0x60, 0x86, 0x3a, 0x15, 0x9a, 0xd4, 0xab, 0xe4, 0x0f,
0xa4, 0x89, 0x34, 0x16, 0x3d, 0xdd, 0xe5, 0x42, 0xa6, 0x58,
0x55, 0x40, 0xfd, 0x68, 0x3c, 0xbf, 0xd8, 0xc0, 0x0f, 0x12,
0x12, 0x9a, 0x28, 0x4d, 0xea, 0xcc, 0x4c, 0xde, 0xfe, 0x58,
0xbe, 0x71, 0x37, 0x54, 0x1c, 0x04, 0x71, 0x26, 0xc8, 0xd4,
0x9e, 0x27, 0x55, 0xab, 0x18, 0x1a, 0xb7, 0xe9, 0x40, 0xb0,
0xc0 };
ARC4Managed rc4 = new ARC4Managed();
rc4.Key = key;
ICryptoTransform stream = rc4.CreateEncryptor();
byte[] output = stream.TransformFinalBlock(input, 0, input.Length);
AssertEquals("RC4 - Test Vector 4", expected, output);
}
