Description: a simple encryptor/decryptor

Link: http://www.codekeep.net/snippets/bf47b389-24ba-41c5-9b23-2f2ffb64d0c9.aspx

 /// <summary>
    /// Class to encrypt and decrypt the password
    /// </summary>
    public static class EncryptorDecryptor
    {
        public static int key = 3;

        /// <summary>
        /// Encrypts and decrypts a given string.
        /// </summary>
        /// <param name="textToEncrypt">The text to encrypt or decrypt.</param>
        /// <returns></returns>
        public static string EncryptDecrypt(string textToEncrypt)
        {
            StringBuilder inSb = new StringBuilder(textToEncrypt);
            StringBuilder outSb = new StringBuilder(textToEncrypt.Length);
            char c;
            for (int i = 0; i < textToEncrypt.Length; i++)
            {
                c = inSb[i];
                c = (char)(c ^ key);
                outSb.Append(c);
            }
            return outSb.ToString();
        }
    }