public Encryptor(string method, string password)
{
MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] inputBytes = System.Text.Encoding.UTF8.GetBytes(password);
byte[] hash = md5.ComputeHash(inputBytes);
encryptCTX = IntPtr.Zero;
decryptCTX = IntPtr.Zero;
this.method = method;
this.password = password;
if (method != null && method.ToLowerInvariant().Equals("rc4"))
{
Console.WriteLine("init rc4");
rc4 = new RC4();
encryptTable = rc4.EncryptInitalize(hash);
decryptTable = rc4.EncryptInitalize(hash);
}
else if (method == "table" || method == "" || method == null)
{
Console.WriteLine("init table");
// TODO endian
var a = BitConverter.ToUInt64(hash, 0);
for (int i = 0; i < 256; i++)
{
encryptTable[i] = (byte)i;
}
for (int i = 1; i < 1024; i++)
{
encryptTable = mergeSort(encryptTable, a, i);
}
for (int i = 0; i < 256; i++)
{
decryptTable[encryptTable[i]] = (byte)i;
}
}
else
{
initKey(password, method);
}
}
public Encryptor(string method, string password)
{
MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] inputBytes = System.Text.Encoding.UTF8.GetBytes(password);
byte[] hash = md5.ComputeHash(inputBytes);
encryptCTX = IntPtr.Zero;
decryptCTX = IntPtr.Zero;
this.method = method;
this.password = password;
if (method != null && method.ToLowerInvariant().Equals("rc4")) {
Console.WriteLine("init rc4");
rc4 = new RC4();
encryptTable = rc4.EncryptInitalize(hash);
decryptTable = rc4.EncryptInitalize(hash);
}
else if (method == "table" || method == "" || method == null)
{
Console.WriteLine("init table");
// TODO endian
var a = BitConverter.ToUInt64(hash, 0);
for (int i = 0; i < 256; i++)
{
encryptTable[i] = (byte)i;
}
for (int i = 1; i < 1024; i++)
{
encryptTable = mergeSort(encryptTable, a, i);
}
for (int i = 0; i < 256; i++)
{
decryptTable[encryptTable[i]] = (byte)i;
}
}
else
{
initKey(password, method);
}
}