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));
}
}
public void CryptoString_TestUtilityMethods()
{
string password = "******";
int length = 100;
string random = CryptoString.GenerateRandomText(length);
Assert.IsTrue(random.Length > (length / 2));
string byteString = CryptoString.BytesToString(new ByteGenerator().GenerateBytes(length));
Assert.IsTrue(byteString.Length > 0);
// String conversions
SecureString secureString = CryptoString.StringToSecureString(password);
string unsecureString = CryptoString.SecureStringToString(secureString);
Assert.IsTrue(password.Equals(unsecureString));
}
public void CryptoString_BasicUsuage()
{
string password = "******";
SecureString secureString = CryptoString.StringToSecureString(password); // Only used for test
string decryptedString;
CryptoString crypto = new CryptoString(secureString);
// Make sure the ToString DOES NOT return the string
decryptedString = crypto.ToString();
Assert.IsFalse(decryptedString.Equals(password));
// Use this only if SecureString is not accepted
string useString = CryptoString.SecureStringToString(crypto.GetSecureString());
////////////////////////////////////////////
// You can now use the useString variable
////////////////////////////////////////////
// When you done fill the variable full of random Text
// NOTE: Not totally secure, but an added level of obsfucation
useString = CryptoString.GenerateRandomText(10000);
}