public string Decrypt(string encryptedText, string pathToFile)
{
string jsonString = File.ReadAllText(pathToFile);
AesFileModel model = JsonConvert.DeserializeObject <AesFileModel>(jsonString);
cryptoProvider.Key = Convert.FromBase64String(model.Key);
cryptoProvider.IV = Convert.FromBase64String(model.IV);
ICryptoTransform transform = cryptoProvider.CreateDecryptor();
byte[] encryptedBytes = Convert.FromBase64String(encryptedText);
byte[] decryptedBytes = transform.TransformFinalBlock(encryptedBytes, 0, encryptedBytes.Length);
string decryptedString = Encoding.Unicode.GetString(decryptedBytes);
return(decryptedString);
}
public string Encrypt(string text, string pathToFile)
{
cryptoProvider.GenerateKey();
cryptoProvider.GenerateIV();
AesFileModel model = new AesFileModel();
model.Key = Convert.ToBase64String(cryptoProvider.Key);
model.IV = Convert.ToBase64String(cryptoProvider.IV);
ICryptoTransform transform = cryptoProvider.CreateEncryptor();
File.WriteAllText(pathToFile + FileName, JsonConvert.SerializeObject(model));
var stringBytes = Encoding.Unicode.GetBytes(text);
byte[] bytesCypherText = transform.TransformFinalBlock(stringBytes, 0, stringBytes.Length);
var cypherText = Convert.ToBase64String(bytesCypherText);
return(Converter.StringToBinary(cypherText));
}