private bool TryDecrypt(DataContract message, out DecryptedData decryptedData, string passwordHash)
{
decryptedData = null;
var keyPaths = this.GetAllPgpKeysForUserId(message.UserId);
var directory = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
var inputFilePath = Path.Combine(directory, "message.pgp");
var outputFilePath = Path.Combine(directory, "message__decrypted");
foreach (var path in keyPaths)
{
File.WriteAllBytes(inputFilePath, Convert.FromBase64String(message.EncryptedData));
var isSuccessful = DataProtector.DecryptFile(inputFilePath, outputFilePath, path, passwordHash);
if (isSuccessful)
{
decryptedData = JsonConvert.DeserializeObject <DecryptedData>(File.ReadAllText(outputFilePath));
File.Delete(inputFilePath);
File.Delete(outputFilePath);
return(true);
}
}
if (File.Exists(inputFilePath))
{
File.Delete(inputFilePath);
}
if (File.Exists(outputFilePath))
{
File.Delete(outputFilePath);
}
return(false);
}
