public void SecureFile_File_Metadata() { string originalName = Path.GetTempFileName(); string encryptName = Path.GetTempFileName(); string decryptName = Path.GetTempFileName(); string privateKey = AsymmetricCrypto.CreatePrivateKey(CryptoAlgorithm.RSA, 1024); string publicKey = AsymmetricCrypto.GetPublicKey(CryptoAlgorithm.RSA, privateKey); EnhancedStream original = null; EnhancedStream encrypted = null; EnhancedStream decrypted = null; SecureFile secure = null; DateTime createTime = Helper.UtcNowRounded - TimeSpan.FromMinutes(1); DateTime writeTime = Helper.UtcNowRounded; try { original = new EnhancedFileStream(originalName, FileMode.Create, FileAccess.ReadWrite); for (int i = 0; i < 100; i++) { original.WriteByte((byte)i); } original.Close(); original = null; Directory.SetCreationTimeUtc(originalName, createTime); Directory.SetLastWriteTimeUtc(originalName, writeTime); secure = new SecureFile(originalName, SecureFileMode.Encrypt, publicKey); secure.Properties["Foo"] = "Bar"; secure.Properties["Hello"] = "World"; secure.EncryptTo(encryptName, CryptoAlgorithm.AES, 256); Assert.AreEqual(Path.GetFileName(originalName), secure.FileName); Assert.AreEqual(createTime, secure.CreateTimeUtc); Assert.AreEqual(writeTime, secure.WriteTimeUtc); secure.Close(); secure = null; secure = new SecureFile(encryptName, SecureFileMode.Decrypt, privateKey); Assert.AreEqual("Bar", secure.Properties["Foo"]); Assert.AreEqual("World", secure.Properties["Hello"]); Assert.AreEqual(Path.GetFileName(originalName), secure.FileName); Assert.AreEqual(createTime, secure.CreateTimeUtc); Assert.AreEqual(writeTime, secure.WriteTimeUtc); secure.DecryptTo(decryptName); secure.Close(); secure = null; Assert.AreEqual(createTime, Directory.GetCreationTimeUtc(decryptName)); Assert.AreEqual(writeTime, Directory.GetLastWriteTimeUtc(decryptName)); original = new EnhancedFileStream(originalName, FileMode.Open, FileAccess.Read); encrypted = new EnhancedFileStream(encryptName, FileMode.Open, FileAccess.Read); decrypted = new EnhancedFileStream(decryptName, FileMode.Open, FileAccess.Read); original.Position = 0; encrypted.Position = 0; Assert.AreNotEqual(original.ReadBytesToEnd(), encrypted.ReadBytesToEnd()); original.Position = 0; decrypted.Position = 0; CollectionAssert.AreEqual(original.ReadBytesToEnd(), decrypted.ReadBytesToEnd()); } finally { if (original != null) { original.Close(); } if (encrypted != null) { encrypted.Close(); } if (decrypted != null) { decrypted.Close(); } System.IO.File.Delete(originalName); System.IO.File.Delete(encryptName); System.IO.File.Delete(decryptName); } }