private DataProtectionScope ToDataProtectionScope(PasswordProtectionScope scope)
{
switch (scope)
{
case PasswordProtectionScope.CurrentUser: return DataProtectionScope.CurrentUser;
case PasswordProtectionScope.LocalMachine: return DataProtectionScope.LocalMachine;
}
return DataProtectionScope.CurrentUser;
}
public string Protect(string password, PasswordProtectionScope scope)
{
using (var memoryStream = new MemoryStream())
{
var toEncrypt = Encoding.UTF8.GetBytes(password);
var entropy = _protector.CreateRandomEntropy();
memoryStream.Write(entropy, 0, entropy.Length);
memoryStream.WriteByte((byte)scope);
_protector.EncryptDataToStream(toEncrypt, entropy, ToDataProtectionScope(scope), memoryStream);
var bytes = memoryStream.ToArray();
return Convert.ToBase64String(bytes);
}
}
