/// <summary>
/// Measure cipher performance in MB/s
/// </summary>
/// <param name="cipher">Cipher instance</param>
/// <returns>Speed in MB/s</returns>
public static string SpeedTest(ICipherAlgorithm cipher)
{
const int SAMPLE_SIZE_KB = 4;
const int TEST_CYCLES = 1024;
byte[] plainText = new byte[SAMPLE_SIZE_KB * 1024];
byte[] key = new byte[cipher.KeyLength];
byte[] iv = new byte[cipher.BlockSize];
Random rng = new Random();
rng.NextBytes(plainText);
rng.NextBytes(key);
rng.NextBytes(iv);
CipherEngine engine = new CipherEngine(cipher);
Stream cipherStream = engine.EncryptStream(new MemoryStream(), key, iv);
Stopwatch sw = new Stopwatch();
sw.Start();
for (int c = 0; c < TEST_CYCLES; c++)
{
using (MemoryStream plainTextStream = new MemoryStream(plainText)) {
plainTextStream.WriteTo(cipherStream);
}
}
sw.Stop();
return(String.Format("{0} = {1:0.00} KB/s", cipher.Name, (float)((1000.0 * SAMPLE_SIZE_KB * TEST_CYCLES) / (sw.ElapsedMilliseconds * 1.0))));
}
/// <summary>
/// Measure cipher performance in MB/s
/// </summary>
/// <param name="cipher">Cipher instance</param>
/// <returns>Speed in MB/s</returns>
public static string SpeedTest(ICipherAlgorithm cipher)
{
const int SAMPLE_SIZE_KB = 4;
const int TEST_CYCLES = 1024;
byte[] plainText = new byte[SAMPLE_SIZE_KB * 1024];
byte[] key = new byte[cipher.KeyLength];
byte[] iv = new byte[cipher.BlockSize];
Random rng = new Random();
rng.NextBytes(plainText);
rng.NextBytes(key);
rng.NextBytes(iv);
CipherEngine engine = new CipherEngine(cipher);
Stream cipherStream = engine.EncryptStream(new MemoryStream(), key, iv);
Stopwatch sw = new Stopwatch();
sw.Start();
for (int c = 0; c < TEST_CYCLES; c++) {
using (MemoryStream plainTextStream = new MemoryStream(plainText)) {
plainTextStream.WriteTo(cipherStream);
}
}
sw.Stop();
return String.Format("{0} = {1:0.00} KB/s", cipher.Name, (float)((1000.0 * SAMPLE_SIZE_KB * TEST_CYCLES) / (sw.ElapsedMilliseconds * 1.0)));
}
public CFBTransform(byte[] pbKey, byte[] pbIV, bool bEncrypt, ICipherAlgorithm cipher)
{
_cipher = cipher;
_cipher.SetKey(pbKey);
_encrypt = bEncrypt;
_state = new byte[_cipher.BlockSize];
Array.Copy(pbIV, _state, _cipher.BlockSize);
}
public CFBTransform(byte[] pbKey, byte[] pbIV, bool bEncrypt, ICipherAlgorithm cipher)
{
_cipher = cipher;
_cipher.SetKey(pbKey);
_encrypt = bEncrypt;
_state = new byte[_cipher.BlockSize];
Array.Copy(pbIV, _state, _cipher.BlockSize);
}
public CipherEngine(ICipherAlgorithm cipher)
{
_cipher = cipher;
_cipherUUID = new PwUuid(_cipher.UuidBytes);
}
public CipherEngine(ICipherAlgorithm cipher)
{
_cipher = cipher;
}
public CipherEngine(ICipherAlgorithm cipher)
{
_cipher = cipher;
_cipherUUID = new PwUuid(_cipher.UuidBytes);
}
