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();
}
public static byte[] BasylHashUno(Stream stream, string pass, int hashSize, int keySize, int rounds, int skipOver, string additionalPass)
{
PseudoRandomGenerator prng = new PseudoRandomGenerator(keySize, pass, rounds);
prng.SetRecycleKey(additionalPass);
BESCipher cipher = new BESCipher(new BasylWeakKeyGenerator(prng));
prng.Recycle();
byte[] buff = new byte[65536];
while (stream.Position + 65536 < stream.Length)
{
stream.Read(buff, 0, 65536);
cipher.EncryptLeft(ref buff);
}
int x = stream.ReadByte();
while (x != -1)
{
byte z = (byte)x;
cipher.EncryptLeft(ref z);
x = stream.ReadByte();
}
for (int i = 0; i < skipOver; i++)
{
prng.GetRandomInt();
}
int max = prng.GetRandomByte() * prng.GetRandomByte() + prng.GetRandomByte();
for (int i = 0; i < max; i++)
{
prng.GetRandomInt();
}
byte[] BHU = new byte[hashSize];
prng.FillBytes(BHU);
for (int i = 0; i < hashSize; i++)
{
BHU[i] ^= prng.GetRandomByte();
cipher.EncryptRight(ref BHU);
}
return(BHU);
}
public static byte[] BasylHashUno(String str, string pass, int hashSize, int keySize, int rounds, int skipOver, string additionalPass)
{
PseudoRandomGenerator prng = new PseudoRandomGenerator(keySize, pass, rounds);
prng.SetRecycleKey(additionalPass);
IBasylKeyGenerator wk = new BasylWeakKeyGenerator(prng);
BESCipher cipher = new BESCipher(wk);
prng.Recycle();
foreach (char n in str)
{
byte q = (byte)n;
cipher.EncryptLeft(ref q);
}
for (int i = 0; i < skipOver; i++)
{
for (int x = 0; x < 4; x++)
{
prng.GetRandomByte();
}
}
int max = prng.GetRandomByte() * prng.GetRandomByte() + prng.GetRandomByte();
for (int i = 0; i < max; i++)
{
for (int x = 0; x < 4; x++)
{
prng.GetRandomByte();
}
}
byte[] BHU = new byte[hashSize];
wk.FillBytes(BHU, 0, BHU.Length);
for (int i = 0; i < hashSize; i++)
{
BHU[i] ^= prng.GetRandomByte();
cipher.EncryptRight(ref BHU);
}
return(BHU);
}
/// <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();
}
public static byte[] BasylHashUno(String str, string pass, int hashSize, int keySize, int rounds, int skipOver, string additionalPass)
{
PseudoRandomGenerator prng = new PseudoRandomGenerator(keySize, pass, rounds);
prng.SetRecycleKey(additionalPass);
IBasylKeyGenerator wk = new BasylWeakKeyGenerator(prng);
BESCipher cipher = new BESCipher(wk);
prng.Recycle();
foreach(char n in str)
{
byte q = (byte)n;
cipher.EncryptLeft(ref q);
}
for (int i = 0; i < skipOver; i++)
{
for (int x = 0; x < 4; x++ )
prng.GetRandomByte();
}
int max = prng.GetRandomByte() * prng.GetRandomByte() + prng.GetRandomByte();
for (int i = 0; i < max; i++)
{
for (int x = 0; x < 4; x++)
prng.GetRandomByte();
}
byte[] BHU = new byte[hashSize];
wk.FillBytes(BHU, 0, BHU.Length);
for (int i = 0; i < hashSize; i++)
{
BHU[i] ^= prng.GetRandomByte();
cipher.EncryptRight(ref BHU);
}
return BHU;
}
public static byte[] BasylHashUno(Stream stream, string pass, int hashSize, int keySize, int rounds, int skipOver, string additionalPass)
{
PseudoRandomGenerator prng = new PseudoRandomGenerator(keySize, pass, rounds);
prng.SetRecycleKey(additionalPass);
BESCipher cipher = new BESCipher(new BasylWeakKeyGenerator(prng));
prng.Recycle();
byte[] buff = new byte[65536];
while(stream.Position + 65536 < stream.Length)
{
stream.Read(buff, 0, 65536);
cipher.EncryptLeft(ref buff);
}
int x = stream.ReadByte();
while(x != -1)
{
byte z = (byte)x;
cipher.EncryptLeft(ref z);
x = stream.ReadByte();
}
for(int i = 0; i < skipOver; i++)
{
prng.GetRandomInt();
}
int max = prng.GetRandomByte() * prng.GetRandomByte() + prng.GetRandomByte();
for (int i = 0; i < max; i++)
{
prng.GetRandomInt();
}
byte[] BHU = new byte[hashSize];
prng.FillBytes(BHU);
for (int i = 0; i < hashSize; i++)
{
BHU[i] ^= prng.GetRandomByte();
cipher.EncryptRight(ref BHU);
}
return BHU;
}
/// <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();
}