{

public class CryptorEngine

{

/// <summary>

/// Encrypt a string using dual encryption method. Return a encrypted cipher Text

/// </summary>

/// <param name="toEncrypt">string to be encrypted</param>

/// <param name="useHashing">use hashing? send to for extra secirity</param>

/// <returns></returns>

public static string Encrypt(string toEncrypt)

{

bool useHashing = true;

byte[] keyArray;

byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);

string key = "ImgONE";

//System.Windows.Forms.MessageBox.Show(key);

if (useHashing)

{

MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();

keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));

hashmd5.Clear();

}

else

keyArray = UTF8Encoding.UTF8.GetBytes(key);

TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();

tdes.Key = keyArray;

tdes.Mode = CipherMode.ECB;

tdes.Padding = PaddingMode.PKCS7;

ICryptoTransform cTransform = tdes.CreateEncryptor();

byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

tdes.Clear();

return Convert.ToBase64String(resultArray, 0, resultArray.Length);

}

/// <summary>

/// DeCrypt a string using dual encryption method. Return a DeCrypted clear string

/// </summary>

/// <param name="cipherString">encrypted string</param>

/// <param name="useHashing">Did you use hashing to encrypt this data? pass true is yes</param>

/// <returns></returns>

public static string Decrypt(string cipherString)

{

byte[] keyArray;

bool useHashing = true;

byte[] toEncryptArray = Convert.FromBase64String(cipherString);

string key = "ImgONE";

if (useHashing)

{

MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();

keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));

hashmd5.Clear();

}

else

keyArray = UTF8Encoding.UTF8.GetBytes(key);

TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();

tdes.Key = keyArray;

tdes.Mode = CipherMode.ECB;

tdes.Padding = PaddingMode.PKCS7;

ICryptoTransform cTransform = tdes.CreateDecryptor();

byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

tdes.Clear();

return UTF8Encoding.UTF8.GetString(resultArray);

}

}