MD5 hashing can be used as a quick and easy way to check if a string was changed or not. I created a class to let me get the hash or verify it with 1 line of code.

public class MD5Strings
        // Hash an input string and return the hash as
        // a 32 character hexadecimal string.
        public static string getMd5Hash(string input)
            // Create a new instance of the MD5CryptoServiceProvider object.
            MD5 md5Hasher = MD5.Create();

            // Convert the input string to a byte array and compute the hash.
            byte[] data = md5Hasher.ComputeHash(

            // Create a new Stringbuilder to collect the bytes
            // and create a string.
            StringBuilder sBuilder = new StringBuilder();

            // Loop through each byte of the hashed data
            // and format each one as a hexadecimal string.
            for (int i = 0; i < data.Length; i++)

            return sBuilder.ToString();  // Return the hexadecimal string.

        // Verify a hash against a string.
        public static bool verifyMd5Hash(string input, string hash)
            string hashOfInput = getMd5Hash(input);  // Hash the input.

            //Create a StringComparer an comare the hashes.
            StringComparer comparer = StringComparer.OrdinalIgnoreCase;

            if (0 == comparer.Compare(hashOfInput, hash))
                return true;
                return false;

Now, to get the hash of a string:

string result;

//return the hash in uppercase to make it a little more presentable
result = MD5Strings.getMd5Hash("Hello, World!").ToUpper();

And to verify a hash:

bool verify = MD5Strings.verifyMd5Hash("Hello, World!",