public static async Task <string> Decrypt(EncryptedResult encryptedResult)
{
string decrypted;
using (Aes aes = Aes.Create()) {
aes.Key = encryptedResult.Key;
aes.IV = encryptedResult.IV;
ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV);
using (MemoryStream memoryDecrypt = new MemoryStream(encryptedResult.Encrypted)) {
using (CryptoStream cryptoStream = new CryptoStream(memoryDecrypt, decryptor, CryptoStreamMode.Read)) {
using (StreamReader readerDecrypt = new StreamReader(cryptoStream)) {
decrypted = await readerDecrypt.ReadToEndAsync();
}
}
}
}
return(decrypted);
}
public static async Task <EncryptedResult> Encrypt(string password)
{
EncryptedResult result = new EncryptedResult();
using (Aes aes = Aes.Create()) {
ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);
using (MemoryStream memoryEncrypt = new MemoryStream()) {
using (CryptoStream cryptoStream = new CryptoStream(memoryEncrypt, encryptor, CryptoStreamMode.Write)) {
using (StreamWriter writerEncrypt = new StreamWriter(cryptoStream)) {
await writerEncrypt.WriteAsync(password);
}
result.Encrypted = memoryEncrypt.ToArray();
result.IV = aes.IV;
result.Key = aes.Key;
}
}
}
return(result);
}
public async Task <UserSettings> ReadUserSettings()
{
var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AppSettings", "UserSettings.xml");
this._logger.Information("Settings Path: {0}", path);
if (File.Exists(path))
{
var settings = await this.XmlDeSerializeUserSettings(path);
var encrypted = new EncryptedResult();
encrypted.Key = Convert.FromBase64String(settings.Key);
encrypted.IV = Convert.FromBase64String(settings.IV);
encrypted.Encrypted = Convert.FromBase64String(settings.Password);
settings.Password = await EncryptionService.Decrypt(encrypted);
return(settings);
}
else
{
this._logger.Error("Failed to read UserSettings,IUserSettingsService");
return(null);
}
}