private static string DecryptForObscurity(string dataToDecrypt, int randomization) { if (string.IsNullOrWhiteSpace(dataToDecrypt)) { return(dataToDecrypt); } byte[] decryptedDataBytes = null; MemoryStream mstream = null; CryptoStream cstream = null; try { byte[] key = RandomStringGenerator.GetBytesFromString(encryptKeyArray[randomization]); byte[] iv = RandomStringGenerator.GetBytesFromString(initVectorArray[randomization]); byte[] encryptedBytes = RandomStringGenerator.FromEncodedString(dataToDecrypt); TripleDESCryptoServiceProvider des3provider = new TripleDESCryptoServiceProvider(); des3provider.Mode = CipherMode.CBC; ICryptoTransform des3decrypt = des3provider.CreateDecryptor(key, iv); mstream = new MemoryStream(); cstream = new CryptoStream(mstream, des3decrypt, CryptoStreamMode.Write); cstream.Write(encryptedBytes, 0, encryptedBytes.Length); cstream.FlushFinalBlock(); decryptedDataBytes = mstream.ToArray(); } catch { //swallow errors } finally { if (mstream != null) { mstream.Close(); } if (cstream != null) { cstream.Close(); } } if (decryptedDataBytes == null) { return(null); } else { return(RandomStringGenerator.GetStringFromBytes(decryptedDataBytes)); } }
public static string Decrypt(string dataToDecrypt) { if (string.IsNullOrWhiteSpace(dataToDecrypt)) { return(dataToDecrypt); } byte[] decryptedDataBytes = null; MemoryStream mstream = null; CryptoStream cstream = null; try { byte[] encryptedBytes = RandomStringGenerator.FromEncodedString(dataToDecrypt); var des3Decrypt = CreateDecryptor(); mstream = new MemoryStream(); cstream = new CryptoStream(mstream, des3Decrypt, CryptoStreamMode.Write); cstream.Write(encryptedBytes, 0, encryptedBytes.Length); cstream.FlushFinalBlock(); decryptedDataBytes = mstream.ToArray(); } catch { //swallow errors } finally { if (mstream != null) { mstream.Close(); } if (cstream != null) { cstream.Close(); } } if (decryptedDataBytes == null) { return(null); } return(RandomStringGenerator.GetStringFromBytes(decryptedDataBytes)); }