/// <summary>
/// This creates a Basyl Key Generator from the arguments..
/// </summary>
/// <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="sha"></param>
/// <param name="Key1Random"></param>
/// <param name="Key2Random"></param>
/// <param name="encryptedKey1"></param>
/// <param name="adaptor"></param>
public BasylKeyGenerator(string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, byte[] sha, byte[] Key1Random, byte[] Key2Random, bool encryptedKey1, BasylPseudoAdaptor adaptor)
{
if (adaptor == null)
{
adaptor = new BasylPseudoAdaptor();
}
this.sha = sha;
this.Key2Random = Key2Random;
PseudoRandomGenerator Key1 = new PseudoRandomGenerator(initial, pass, rounds, adaptor);
Key2 = new PseudoRandomGenerator(1024 * 40, pass, 400, adaptor);
//Set the left off
Key1.SetLeftoff(leftoff);
Key2.SetLeftoff(80);
//Set String Recycle Key
Key1.SetRecycleKey(additionalKey);
Key2.SetRecycleKey(additionalKey);
//Expand the Keys
Key1.ExpandKey((uint)expansion);
Key2.ExpandKey(5);
//Set SHA
Key1.SetSHA(sha);
Key2.SetSHA(sha);
//Add randomness.
Key2.SetSeedKey(Key2Random);
//Recycle Key 2
Key2.Recycle();
//Stop Recycling Key 2
//Key2.StopRecycling();
//Add Key 1 Randomness
if (encryptedKey1)
{
for (int i = 0; i < Key1Random.Length; i++)
{
Key1Random[i] ^= Key2.GetRandomByte();
}
}
this.Key1Random = Key1Random;
Key1.SetSeedKey(Key1Random);
//Recycle Key 1
Key1.Recycle();
//this.Key1 = new FilePseudoRandomGenerator(File.Open("Key1", FileMode.Create), Key1, additionalKey, Key1Random, sha, leftoff);
this.Key1 = Key1;
}
public PseudoRandomGenerator(int size, string key, int rounds, BasylPseudoAdaptor basylPseudoAdaptor)
{
position = 0;
this.rounds = rounds;
Generation = new List<ulong>();
this.recycleKey = "";
ResizeBoth(size);
this.basylPseudoAdaptor = basylPseudoAdaptor;
Generate(key);
}
public PseudoRandomGenerator(int size, string key, int rounds, BasylPseudoAdaptor basylPseudoAdaptor)
{
position = 0;
this.rounds = rounds;
Generation = new List <ulong>();
this.recycleKey = "";
ResizeBoth(size);
this.basylPseudoAdaptor = basylPseudoAdaptor;
Generate(key);
}
/// <summary>
/// This is mainly used by the Basyl Writer.
/// Creates a Basyl Key Generator from the arguments.
/// </summary>
/// <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="sha"></param>
///<param name="adaptor"></param>
public BasylKeyGenerator(string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, byte[] sha, BasylPseudoAdaptor adaptor)
{
if (adaptor == null)
{
adaptor = new BasylPseudoAdaptor();
}
RNGCryptoServiceProvider random = new RNGCryptoServiceProvider();
PseudoRandomGenerator Key1 = new PseudoRandomGenerator(initial, pass, rounds, adaptor);
Key2 = new PseudoRandomGenerator(1024 * 40, pass, 400, adaptor);
Key1Random = new byte[4];
Key2Random = new byte[4];
//Set the left off
Key1.SetLeftoff(leftoff);
Key2.SetLeftoff(80);
//Set String Recycle Key
Key1.SetRecycleKey(additionalKey);
Key2.SetRecycleKey(additionalKey);
//Expand the Keys
Key1.ExpandKey((uint)expansion);
Key2.ExpandKey(5);
//Generate Randomness
random.GetBytes(Key1Random);
random.GetBytes(Key2Random);
//Add randomness.
Key1.SetSeedKey(Key1Random);
Key2.SetSeedKey(Key2Random);
//if sha exists
if (sha != null)
{
this.sha = sha;
//Set SHA
Key1.SetSHA(sha);
Key2.SetSHA(sha);
}
//Recycle the Keys
Key1.Recycle();
Key2.Recycle();
//this.Key1 = new FilePseudoRandomGenerator(File.Open("Key1", FileMode.Create), Key1, additionalKey, Key1Random, sha, leftoff);
this.Key1 = Key1;
}
/// <summary>
/// This creates a Basyl Key Generator from the arguments..
/// </summary>
/// <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="sha"></param>
/// <param name="Key1Random"></param>
/// <param name="Key2Random"></param>
/// <param name="encryptedKey1"></param>
/// <param name="adaptor"></param>
public BasylKeyGenerator(string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, byte[] sha, byte[] Key1Random, byte[] Key2Random, bool encryptedKey1, BasylPseudoAdaptor adaptor)
{
if (adaptor == null) adaptor = new BasylPseudoAdaptor();
this.sha = sha;
this.Key2Random = Key2Random;
PseudoRandomGenerator Key1 = new PseudoRandomGenerator(initial, pass, rounds, adaptor);
Key2 = new PseudoRandomGenerator(1024 * 40, pass, 400, adaptor);
//Set the left off
Key1.SetLeftoff(leftoff);
Key2.SetLeftoff(80);
//Set String Recycle Key
Key1.SetRecycleKey(additionalKey);
Key2.SetRecycleKey(additionalKey);
//Expand the Keys
Key1.ExpandKey((uint)expansion);
Key2.ExpandKey(5);
//Set SHA
Key1.SetSHA(sha);
Key2.SetSHA(sha);
//Add randomness.
Key2.SetSeedKey(Key2Random);
//Recycle Key 2
Key2.Recycle();
//Stop Recycling Key 2
//Key2.StopRecycling();
//Add Key 1 Randomness
if(encryptedKey1)
for (int i = 0; i < Key1Random.Length; i++)
{
Key1Random[i] ^= Key2.GetRandomByte();
}
this.Key1Random = Key1Random;
Key1.SetSeedKey(Key1Random);
//Recycle Key 1
Key1.Recycle();
//this.Key1 = new FilePseudoRandomGenerator(File.Open("Key1", FileMode.Create), Key1, additionalKey, Key1Random, sha, leftoff);
this.Key1 = Key1;
}
/// <summary>
/// This is mainly used by the Basyl Writer.
/// Creates a Basyl Key Generator from the arguments.
/// </summary>
/// <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="sha"></param>
///<param name="adaptor"></param>
public BasylKeyGenerator(string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, byte[] sha, BasylPseudoAdaptor adaptor)
{
if (adaptor == null) adaptor = new BasylPseudoAdaptor();
RNGCryptoServiceProvider random = new RNGCryptoServiceProvider();
PseudoRandomGenerator Key1 = new PseudoRandomGenerator(initial, pass, rounds, adaptor);
Key2 = new PseudoRandomGenerator(1024 * 40, pass, 400, adaptor);
Key1Random = new byte[4];
Key2Random = new byte[4];
//Set the left off
Key1.SetLeftoff(leftoff);
Key2.SetLeftoff(80);
//Set String Recycle Key
Key1.SetRecycleKey(additionalKey);
Key2.SetRecycleKey(additionalKey);
//Expand the Keys
Key1.ExpandKey((uint)expansion);
Key2.ExpandKey(5);
//Generate Randomness
random.GetBytes(Key1Random);
random.GetBytes(Key2Random);
//Add randomness.
Key1.SetSeedKey(Key1Random);
Key2.SetSeedKey(Key2Random);
//if sha exists
if (sha != null)
{
this.sha = sha;
//Set SHA
Key1.SetSHA(sha);
Key2.SetSHA(sha);
}
//Recycle the Keys
Key1.Recycle();
Key2.Recycle();
//this.Key1 = new FilePseudoRandomGenerator(File.Open("Key1", FileMode.Create), Key1, additionalKey, Key1Random, sha, leftoff);
this.Key1 = Key1;
}
/// <summary>
/// Encrypts a file with the parameters
/// </summary>
/// <param name="fileName"></param>
/// <param name="outputFileName"></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(string fileName, string outputFileName, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, BasylFileEncryption.Callback callback, BasylPseudoAdaptor adaptor)
{
Encrypt(File.OpenRead(fileName), File.OpenWrite(outputFileName), pass, initial, rounds, leftoff, expansion, additionalKey, callback, adaptor);
}
/// <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();
}
/// <summary>
/// Encrypts a file stream with the given configuration.
/// Not for networking.
/// </summary>
/// <param name="input">Input Stream</param>
/// <param name="output">Output Stream</param>
/// <param name="pass">Password</param>
/// <param name="initial">Initial Key Size</param>
/// <param name="rounds">Rounds of Key Generation</param>
/// <param name="leftoff">Chunk of data left out</param>
/// <param name="expansion">Multiplier for a key size. (Grows it).</param>
/// <param name="additionalKey">Key to recycle</param>
/// <param name="callback">Callback method</param>
/// <param name="adaptor">Adaptor for PRNG</param>
public static void Encrypt(Stream input, Stream output, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, Callback callback, BasylPseudoAdaptor adaptor)
{
BinaryReader reader = new BinaryReader(input);
//The SHA guarantees that no two files will have the same key for encryption and decryption.
byte[] sha = SHA256.Create().ComputeHash(reader.BaseStream);
reader.BaseStream.Position = 0;
BasylWriter writer = new BasylWriter(output, new BasylKeyGenerator(pass, initial, rounds, leftoff, expansion, additionalKey, sha, adaptor), true);
int speed = MAX_SPEED;
while (speed > MIN_SPEED)
{
//Encrypt Entire File in Chunks
while (reader.BaseStream.Position + speed < reader.BaseStream.Length)
{
byte[] bytes = reader.ReadBytes(speed);
writer.Write(bytes);
if (callback != null)
{
callback((double)reader.BaseStream.Position / reader.BaseStream.Length);
}
}
speed >>= 1;
}
while (reader.BaseStream.Position < reader.BaseStream.Length)
{
writer.Write(reader.ReadByte());
if (callback != null)
{
callback((double)reader.BaseStream.Position / reader.BaseStream.Length);
}
}
writer.Close();
writer.Dispose();
reader.Close();
reader.Dispose();
}
/// <summary>
/// Encrypts a file stream with the given configuration.
/// Not for networking.
/// </summary>
/// <param name="input">Input File String</param>
/// <param name="output">Output File String</param>
/// <param name="pass">Password</param>
/// <param name="initial">Initial Key Size</param>
/// <param name="rounds">Rounds of Key Generation</param>
/// <param name="leftoff">Chunk of data left out</param>
/// <param name="expansion">Multiplier for a key size. (Grows it).</param>
/// <param name="additionalKey">Key to recycle</param>
/// <param name="adaptor"></param>
public static void Encrypt(String input, String output, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, Callback callback, BasylPseudoAdaptor adaptor)
{
Encrypt(File.OpenRead(input), File.OpenWrite(output), pass, initial, rounds, leftoff, expansion, additionalKey, callback, adaptor);
}
/// <summary>
/// Decrypts a stream with the given configuration.
/// Not for networking.
/// </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">Adaptor for PRNG</param>
public static void Decrypt(Stream input, Stream output, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, Callback callback, BasylPseudoAdaptor adaptor)
{
BinaryWriter writer = new BinaryWriter(output);
byte[] hash = new byte[32];
byte[] o = new byte[4];
byte[] d = new byte[4];
input.Read(hash, 0, 32);
input.Read(o, 0, 4);
input.Read(d, 0, 4);
BasylReader reader = new BasylReader(input, new BasylKeyGenerator(pass, initial, rounds, leftoff, expansion, additionalKey, hash, d, o, true, adaptor));
//Speeds up decryption by doing the decryption in chunks.
int speed = MAX_SPEED;
while (speed > MIN_SPEED)
{
//Decrypt Entire File in Chunks
while (reader.GetStream().Position + speed < reader.GetStream().Length)
{
writer.Write(reader.ReadBytes(speed));
if (callback != null)
{
callback((double)reader.GetStream().Position / reader.GetStream().Length);
}
}
speed >>= 1;
}
//Decrypt Entire File
while (reader.GetStream().Position < reader.GetStream().Length)
{
writer.Write(reader.ReadByte());
if (callback != null)
{
callback((double)reader.GetStream().Position / reader.GetStream().Length);
}
}
writer.Close();
reader.Close();
reader.Dispose();
writer.Dispose();
}
/// <summary>
/// Decrypts a file with the parameters.
/// </summary>
/// <param name="fileName"></param>
/// <param name="outputFileName"></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 Decrypt(string fileName, string outputFileName, string pass, int initial, int rounds, int leftoff, int expansion, string additionalKey, BasylFileEncryption.Callback callback, BasylPseudoAdaptor adaptor)
{
Decrypt(File.OpenRead(fileName), File.OpenWrite(outputFileName), pass, initial, rounds, leftoff, expansion, additionalKey, callback, adaptor);
}
/// <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();
}