Esempio n. 1
0
        public static async void EncryptAndWrite <T>(T objectToSave, string fileName)
        {
            var jsonString = JsonConvert.SerializeObject(objectToSave);

            jsonString = AESEncryption.Encrypt(jsonString, "key");
            var file = await ApplicationData.Current.RoamingFolder.CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting);

            using (var stream = await file.OpenAsync(FileAccessMode.ReadWrite))
            {
                using (var datawriter = new DataWriter(stream))
                {
                    datawriter.WriteString(jsonString);
                    await datawriter.StoreAsync();
                }
            }
            var properties = await file.GetBasicPropertiesAsync();

            System.Diagnostics.Debug.WriteLine(properties.Size);
        }
Esempio n. 2
0
        public static async Task <T> ReadAndDecrypt <T>(string fileName)
        {
            string jsonString;
            var    file = await ApplicationData.Current.RoamingFolder.TryGetItemAsync(fileName) as StorageFile;

            if (file == null)
            {
                return(default(T));
            }
            var stream = await file.OpenAsync(FileAccessMode.Read);

            using (var dataReader = new DataReader(stream.GetInputStreamAt(0)))
            {
                uint bytesLoaded = await dataReader.LoadAsync((uint)stream.Size);

                jsonString = dataReader.ReadString(bytesLoaded);
            }
            jsonString = AESEncryption.Decrypt(jsonString, "key");
            return(JsonConvert.DeserializeObject <T>(jsonString));
        }