public void CryptoRandomizer_BasicUsage()
{
CryptoRandomizer randomizer = new CryptoRandomizer();
int blockSize = 20000;
int iterations = 50000;
for (int i = 0; i < iterations; i++)
{
// Get some random bytes
byte[] bytes = new byte[blockSize];
randomizer.GetBytes(bytes);
Assert.IsTrue(bytes.Length == blockSize);
// Get Random Int
int randomInt = randomizer.Next();
// Not really testible
// Get Random Int less than 5
int randomIntLess5 = randomizer.Next(5);
Assert.IsTrue(randomIntLess5 < 5);
// Get Random Int between 1000 - 2000
int randomIntBetween1000And1500 = randomizer.Next(1000, 2000);
Assert.IsTrue(randomIntBetween1000And1500 > 999 && randomIntBetween1000And1500 < 20001);
double randomDouble = randomizer.NextDouble();
// Not really testible
}
}
private string GetRandomDirName(List <DirectoryInfo> directories)
{
CryptoRandomizer randomizer = new CryptoRandomizer();
int index = randomizer.Next(0, directories.Count);
return(directories[index].FullName);
}
public void SymmetricEncryptor_HeavyUsage()
{
CryptoRandomizer random = new CryptoRandomizer();
const int Iterations = 100;
const int MaxMemoryBlock = 100000;
for (int i = 0; i < Iterations; i++)
{
int blockSize = random.Next(MaxMemoryBlock);
byte[] buffer = new ByteGenerator().GenerateBytes(blockSize);
string key = CryptoString.GenerateRandomText(1000);
byte[] decryptedBuffer;
byte[] encryptedBuffer;
using (SymmetricEncryptor encryptor = new SymmetricEncryptor())
{
//Encrypt
encryptedBuffer = encryptor.EncryptBytes(buffer, key);
// Decrypt
decryptedBuffer = encryptor.DecryptBytes(encryptedBuffer, key);
} // IDispose - Closes and clears the keys in memory
// Assert - Check to make sure the bytes are all the same
Assert.IsTrue(buffer.SequenceEqual(decryptedBuffer));
}
}
/// <summary>
/// Hashes a Password and returns a hash fingerprint
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
public string PasswordHash(CryptoString password)
{
Hasher hasher = new Hasher();
string pepper;
string hash;
// Generate Pepper
pepper = new string(Enumerable.Repeat(Options.PepperChars, 1).Select(s => s[random.Next(s.Length)]).ToArray());
// Create your hash
hash = hasher.SecureHash(CryptoString.SecureStringToString(password.GetSecureString()) + Options.Salt + pepper, SecureHashDelay);
return(hash);
}
