public void ToKeyFileAndBackTest()
{
IBlobCryptoProvider asymmetricProvider = new AsymmetricBlobCryptoProvider();
asymmetricProvider.WriteKeyFile("keyfile.txt");
IBlobCryptoProvider clonedProvider = ProviderFactory.CreateProviderFromKeyFile("keyfile.txt");
var encryptedStream = asymmetricProvider.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");
}
public static void DownloadEncryptedFileSymmetric(string destinationPath, CloudBlobContainer container)
{
// Since we have our AES key exported we can use the provider factory to quickly
// insantiate a provider for working with the key again
var provider = ProviderFactory.CreateProviderFromKeyFile("symmetricKey.dat");
// Get a reference to our Blob again
CloudBlockBlob blob = container.GetBlockBlobReference("SymmetricUploadTest.jpg");
// Using our 'Encrypted' extension method to download an encrypted file
// It will be decrypted during download and written to disk ready to use.
blob.DownloadToFileEncrypted(provider, destinationPath, FileMode.Create);
// You could instead download without our library, to see how it was stored encrypted in the cloud
// blob.DownloadToFile(destinationPath, FileMode.Create);
// Tidy up, delete our blob
blob.DeleteIfExists();
}
public void InvalidPathTest()
{
var provider = ProviderFactory.CreateProviderFromKeyFile("invalid.txt");
}