static Task PlatformSetAsync(string key, string data)
{
var context = Platform.CurrentContext;
var ks = new AndroidKeyStore(context, Alias, AlwaysUseAsymmetricKeyStorage);
var encryptedData = ks.Encrypt(data);
using (var prefs = context.GetSharedPreferences(Alias, FileCreationMode.Private))
using (var prefsEditor = prefs.Edit())
{
var encStr = Convert.ToBase64String(encryptedData);
prefsEditor.PutString(Utils.Md5Hash(key), encStr);
prefsEditor.Commit();
}
return(Task.CompletedTask);
}
