public void TestDisposal()
{
string test;
CryptoKey key = new AESCryptoKey();
test = key.Encrypt("Test");
key.Dispose();
key.Decrypt(test);
Assert.Fail();
}
public void TestSimpleEncryptDecrypt()
{
using (AESCryptoKey k1 = new AESCryptoKey())
{
byte[] test = new byte[240];
byte[] cypher1 = k1.Encrypt(test);
byte[] cypher2 = k1.Encrypt(test);
Assert.AreEqual(cypher1, cypher2);
Assert.AreEqual(test, k1.Decrypt(cypher1));
}
}
public void TestCopyReadWriteBytes()
{
byte[] ivrandom = new byte[16];
new Random().NextBytes(ivrandom);
using (AESCryptoKey k1 = new AESCryptoKey())
using (AESCryptoKey k2 = AESCryptoKey.FromBytes(k1.ToArray()))
{
Assert.AreEqual(k1.Key, k2.Key);
Assert.AreEqual(k1.IV, k2.IV);
}
}
public void TestCopyKeyAndIV()
{
byte[] ivrandom = new byte[16];
new Random().NextBytes(ivrandom);
using (AESCryptoKey k1 = new AESCryptoKey())
using (AESCryptoKey k2 = new AESCryptoKey(k1.Key, k1.IV))
using (AESCryptoKey kBadIv = new AESCryptoKey(k1.Key, ivrandom))
{
Assert.AreEqual(k1.Key, k2.Key);
Assert.AreEqual(k1.IV, k2.IV);
Assert.AreEqual("test", k2.Decrypt(k1.Encrypt("test")));
Assert.AreEqual(k1.Key, kBadIv.Key);
Assert.AreNotEqual(k1.IV, kBadIv.IV);
try
{ //one of two possible outcomes, junk or exception
Assert.AreNotEqual("test", kBadIv.Decrypt(k1.Encrypt("test")));
}
catch (System.Security.Cryptography.CryptographicException) { }
}
}