public void IsActuallyEncryptedTest()
{
// Make a key
byte[] key;
int ivLength;
using (AesCryptoServiceProvider aes = new AesCryptoServiceProvider())
{
key = aes.Key;
ivLength = aes.BlockSize / 8;
}
// Make a provider
IBlobCryptoProvider symmetricProvider = new SymmetricBlobCryptoProvider(key);
var encryptedStream = symmetricProvider.EncryptedStream(streamSample);
byte[] result = new byte[sampleStreamSize + ivLength];
encryptedStream.Read(result, 0, result.Length);
Assert.IsFalse(
result.SequenceEqual(streamSample.ToArray()),
"Encrypted stream is not encrypted");
Assert.IsFalse(
result.Take(5).SequenceEqual(streamSample.ToArray().Take(5)),
"Encrypted stream is not encrypted");
}
public void EncryptAndDecryptStreamTest()
{
// Make a key
byte[] key;
using (AesCryptoServiceProvider aes = new AesCryptoServiceProvider())
key = aes.Key;
// Make a provider
IBlobCryptoProvider symmetricProvider = new SymmetricBlobCryptoProvider(key);
// In all cases we are READING from streams
// (read from original, read from encrypted, read from decrypted).
var encryptedStream = symmetricProvider.EncryptedStream(streamSample);
var decryptedStream = symmetricProvider.DecryptedStream(encryptedStream);
byte[] result = new byte[sampleStreamSize];
decryptedStream.Read(result, 0, result.Length);
Assert.IsTrue(
result.SequenceEqual(streamSample.ToArray()),
"Decrypted data does not match original data");
}
public void ToKeyFileStringAndBackTest()
{
IBlobCryptoProvider symmetricProvider = new SymmetricBlobCryptoProvider();
string keyString = symmetricProvider.ToKeyFileString();
IBlobCryptoProvider clonedProvider = ProviderFactory.CreateProviderFromKeyFileString(keyString);
var encryptedStream = symmetricProvider.EncryptedStream(streamSample);
var decryptedStream = clonedProvider.DecryptedStream(encryptedStream);
byte[] result = new byte[sampleStreamSize];
decryptedStream.Read(result, 0, result.Length);
Assert.IsTrue(
result.SequenceEqual(streamSample.ToArray()),
"Decrypted data does not match original data");
}
