public void AsymmetricEncryptDataTest()
{
Asymmetric asymmetric = new Asymmetric();
// Short data test
byte[] data = new byte[] { 7, 12, 69, 47, 249 };
byte[] encrypted = asymmetric.EncryptData(data, mainPublicKey);
byte[] actual = asymmetric.DecryptData(encrypted, mainPrivateKey);
AssertBytesAreEqual(data, actual);
// Longer data test
string msg =
"Implementing the IDisposable interface can be the source of great " +
"confusion amongst many programmers. Whenever possible, I use the following " +
"pattern when implementing it. So far it covers most of the cases I have needed " +
"but for a more extensive discussion see this excellent article by Scott Dorman: " +
"www.codeproject.com/KB/cs/idisposable.aspx";
data = Encoding.Unicode.GetBytes(msg);
encrypted = asymmetric.EncryptData(data, mainPublicKey);
actual = asymmetric.DecryptData(encrypted, mainPrivateKey);
AssertBytesAreEqual(data, actual);
// Null argument
data = null;
try
{
encrypted = asymmetric.EncryptData(data, mainPublicKey);
Assert.Fail("Expected exception");
}
catch (ArgumentNullException)
{
}
// Zero data length
data = new byte[0];
encrypted = asymmetric.EncryptData(data, mainPublicKey);
actual = asymmetric.DecryptData(encrypted, mainPrivateKey);
AssertBytesAreEqual(data, actual);
// Single byte
data = new byte[] { 7 };
encrypted = asymmetric.EncryptData(data, mainPublicKey);
actual = asymmetric.DecryptData(encrypted, mainPrivateKey);
AssertBytesAreEqual(data, actual);
// Long data test
data = new byte[2 * 1024 * 1024];
Random random = new Random(71269);
random.NextBytes(data);
encrypted = asymmetric.EncryptData(data, mainPublicKey);
actual = asymmetric.DecryptData(encrypted, mainPrivateKey);
AssertBytesAreEqual(data, actual);
}