public static void Main(string[] args)
{
BasylKeyGenerator bkg = new BasylKeyGenerator("Hi", 1024, 900, 1240, 1024, "ABCD", new byte[(32)], new byte[(4)], new byte[(4)], false, new StrongerBasylPseudoAdaptor());
FileStream s = File.OpenWrite("Heh.dat");
int size = 1024 * 1024 * 25;
byte[] m = new byte[size];
while (true)
{
bkg.FillBytes(m);
s.Write(m, 0, size);
for (int i = 0; i < size - 1; i++)
{
m[i] += m[i + 1];
}
for (int i = size - 2; i >= 0; i--)
{
m[i] += m[i + 1];
}
s.Write(m, 0, size);
}
Console.ReadLine();
}
public static void Main(string[] args)
{
BasylKeyGenerator bkg = new BasylKeyGenerator("Hi", 1024, 900, 1240, 1024, "ABCD", new byte[(32)], new byte[(4)], new byte[(4)], false, new StrongerBasylPseudoAdaptor());
FileStream s = File.OpenWrite("Heh.dat");
int size = 1024*1024*25;
byte[] m = new byte[size];
while (true)
{
bkg.FillBytes(m);
s.Write(m, 0, size);
for(int i = 0; i < size -1; i++)
{
m[i] += m[i + 1];
}
for (int i = size - 2; i >= 0; i--)
{
m[i] += m[i + 1];
}
s.Write(m, 0, size);
}
Console.ReadLine();
}
public FileMutatedBKG(BasylKeyGenerator keyGen, Stream stream)
{
this.generator = keyGen;
this.cipher = new BESCipher(keyGen);
byte[] extra = new byte[100];
byte[] extra2 = new byte[64];
int amount = 65536;
while (amount != 0)
{
byte[] buffer = new byte[amount];
while (stream.Position + amount < stream.Length)
{
stream.Read(buffer, 0, amount);
cipher.EncryptRight(ref buffer);
cipher.EncryptLeft(ref extra);
cipher.EncryptRight(ref extra2);
}
cipher.EncryptLeft(ref extra2);
cipher.Shuffle(2);
amount /= 2;
}
prg = new PseudoRandomGenerator(256 * 256, "MutatedBKG", 500);
prg.ExpandKey(1);
prg.SetSeedKey(extra);
prg.SetSHA(extra2);
prg.Recycle();
stream.Close();
}
/// <summary>
/// Decrypts a file with the parameters.
/// </summary>
/// <param name="input"></param>
/// <param name="output"></param>
/// <param name="pass"></param>
/// <param name="initial"></param>
/// <param name="rounds"></param>
/// <param name="leftoff"></param>
/// <param name="expansion"></param>
/// <param name="additionalKey"></param>
/// <param name="callback"></param>
public static void Decrypt(Stream input, Stream output, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, BasylFileEncryption.Callback callback, BasylPseudoAdaptor adaptor)
{
//read in the necessary randomized info.
byte[] sha = new byte[32];
byte[] f = new byte[4];
byte[] f2 = new byte[4];
input.Read(sha, 0, 32);
input.Read(f2, 0, 4);
input.Read(f, 0, 4);
BasylKeyGenerator bkg = new BasylKeyGenerator(pass, initial, rounds, leftoff, expansion, additionalKey, sha, f, f2, true, adaptor);
BESCipher cipher = new BESCipher(bkg);
int speed = MAX_SPEED;
while (speed > MIN_SPEED)
{
//Encrypt Entire File in Chunks
byte[] buffer = new byte[speed];
while (input.Position + speed <= input.Length)
{
input.Read(buffer, 0, speed);
cipher.EncryptLeft(ref buffer);
output.Write(buffer, 0, speed);
if (callback != null)
{
callback((double)input.Position / input.Length);
}
}
speed >>= 1;
}
input.Close();
output.Close();
}
/// <summary>
/// Encrypts a file from the parameters.
/// </summary>
/// <param name="input"></param>
/// <param name="output"></param>
/// <param name="pass"></param>
/// <param name="initial"></param>
/// <param name="rounds"></param>
/// <param name="leftoff"></param>
/// <param name="expansion"></param>
/// <param name="additionalKey"></param>
/// <param name="callback"></param>
/// <param name="adaptor"></param>
public static void Encrypt(Stream input, Stream output, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, BasylFileEncryption.Callback callback, BasylPseudoAdaptor adaptor)
{
//The SHA guarantees that no two files will have the same key for encryption and decryption.
byte[] sha = SHA256.Create().ComputeHash(input);
input.Position = 0;
BasylKeyGenerator bkg = new BasylKeyGenerator(pass, initial, rounds, leftoff, expansion, additionalKey, sha, adaptor);
//write out the necessary randomized info.
output.Write(sha, 0, 32);
output.Write(bkg.GetSecondRandomizer(), 0, 4);
output.Write(bkg.GetEncryptedKey1Random(), 0, 4);
BESCipher cipher = new BESCipher(bkg);
int speed = MAX_SPEED;
while (speed > MIN_SPEED)
{
//Encrypt Entire File in Chunks
byte[] buffer = new byte[speed];
while (input.Position + speed <= input.Length)
{
input.Read(buffer, 0, speed);
cipher.EncryptRight(ref buffer);
output.Write(buffer, 0, speed);
if (callback != null)
{
callback((double)input.Position / input.Length);
}
}
speed >>= 1;
}
input.Close();
output.Close();
}
private string GenerateRandomFunction(string keyPhrase)
{
BasylKeyGenerator generator = new BasylKeyGenerator(keyPhrase, BasylKeyGenerator.INITIAL / 4, BasylKeyGenerator.ROUNDS, BasylKeyGenerator.LEFTOFF, BasylKeyGenerator.EXPANSION / 20, BasylKeyGenerator.ADDITIONALKEY, new byte[32], new byte[4], new byte[4], true, new StrongerBasylPseudoAdaptor());
List<String> variables = new List<string>();
List<String> operators = new List<string>();
variables.Add("seed");
variables.Add("pos");
operators.AddRange("+,*,%,^,|,&,+,*,*,+".Split(','));
bool operMode = false;
String res = "pos * seed + pos + ";
while ((generator.GetRandomByte() % 29) != (generator.GetRandomByte() % 29) || !operMode)
{
if (operMode)
{
res += operators[generator.GetRandomByte() % operators.Count] + " ";
operMode = false;
}
else
{
if (generator.GetRandomByte() % 8 == 0)
{
//literal
res += (Math.Abs(BitConverter.ToInt32(new byte[] { generator.GetRandomByte(), generator.GetRandomByte(), generator.GetRandomByte(), generator.GetRandomByte() }, 0)) % 256 * 256 * 12 + " ");
}
else
{
//variable
res += variables[generator.GetRandomByte() % variables.Count] + " ";
}
operMode = true;
}
}
return res;
}
/// <summary>
/// Encrypts a file from the parameters.
/// </summary>
/// <param name="input"></param>
/// <param name="output"></param>
/// <param name="pass"></param>
/// <param name="initial"></param>
/// <param name="rounds"></param>
/// <param name="leftoff"></param>
/// <param name="expansion"></param>
/// <param name="additionalKey"></param>
/// <param name="callback"></param>
/// <param name="adaptor"></param>
public static void Encrypt(Stream input, Stream output, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, BasylFileEncryption.Callback callback, BasylPseudoAdaptor adaptor)
{
//The SHA guarantees that no two files will have the same key for encryption and decryption.
byte[] sha = SHA256.Create().ComputeHash(input);
input.Position = 0;
BasylKeyGenerator bkg = new BasylKeyGenerator(pass, initial, rounds, leftoff, expansion, additionalKey, sha, adaptor);
//write out the necessary randomized info.
output.Write(sha, 0, 32);
output.Write(bkg.GetSecondRandomizer(), 0, 4);
output.Write(bkg.GetEncryptedKey1Random(), 0, 4);
BESCipher cipher = new BESCipher(bkg);
int speed = MAX_SPEED;
while (speed > MIN_SPEED)
{
//Encrypt Entire File in Chunks
byte[] buffer = new byte[speed];
while (input.Position + speed <= input.Length)
{
input.Read(buffer, 0, speed);
cipher.EncryptRight(ref buffer);
output.Write(buffer, 0, speed);
if (callback != null)
{
callback((double)input.Position / input.Length);
}
}
speed >>= 1;
}
input.Close();
output.Close();
}
/// <summary>
/// Decrypts a file with the parameters.
/// </summary>
/// <param name="input"></param>
/// <param name="output"></param>
/// <param name="pass"></param>
/// <param name="initial"></param>
/// <param name="rounds"></param>
/// <param name="leftoff"></param>
/// <param name="expansion"></param>
/// <param name="additionalKey"></param>
/// <param name="callback"></param>
public static void Decrypt(Stream input, Stream output, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, BasylFileEncryption.Callback callback, BasylPseudoAdaptor adaptor)
{
//read in the necessary randomized info.
byte[] sha = new byte[32];
byte[] f = new byte[4];
byte[] f2 = new byte[4];
input.Read(sha, 0, 32);
input.Read(f2, 0, 4);
input.Read(f, 0, 4);
BasylKeyGenerator bkg = new BasylKeyGenerator(pass, initial, rounds, leftoff, expansion, additionalKey, sha, f, f2, true, adaptor);
BESCipher cipher = new BESCipher(bkg);
int speed = MAX_SPEED;
while (speed > MIN_SPEED)
{
//Encrypt Entire File in Chunks
byte[] buffer = new byte[speed];
while (input.Position + speed <= input.Length)
{
input.Read(buffer, 0, speed);
cipher.EncryptLeft(ref buffer);
output.Write(buffer, 0, speed);
if (callback != null)
{
callback((double)input.Position / input.Length);
}
}
speed >>= 1;
}
input.Close();
output.Close();
}
