Encrypt and Decrypt extention

Today we offer Encrypt/Decrypt extension by MD5 algorithm:

/// <summary>

/// Encrypt input by MD5

/// </summary>

/// <param name="input"></param>

/// <returns></returns>

public static string Encrypt(this string input)

{

    using (MD5 md5Hash = MD5.Create())

    {

        // Convert the input string to a byte array and compute the hash.

        byte[] data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(input));

        // Create a new Stringbuilder to collect the bytes

        // and create a string.

        StringBuilder stringBuilder = new StringBuilder();

        // Loop through each byte of the hashed data

        // and format each one as a hexadecimal string.

        Array.ForEach(data,

             item => stringBuilder.Append(item.ToString("x2"))

            );

        // Return the hexadecimal string.

        return stringBuilder.ToString();

    }

}

/// <summary>

/// Verify a hash against a string.

/// </summary>

/// <param name="input"></param>

/// <param name="hash"></param>

/// <returns></returns>

public static bool Decrypt(this string hash, string input )

{

    // Hash the input.

    string hashOfInput = Encrypt(input);

    // Create a StringComparer an compare the hashes.

    StringComparer comparer = StringComparer.OrdinalIgnoreCase;

    return (comparer.Compare(hashOfInput, hash) == default(int)) ? true : false;

}

Example:

public class Foo

{

    public string UserName { get; set; }

    public string Password { get; set; }

}

//Your code

Foo foo = new Foo

{

    UserName = "admin",

    //Encrypt

    Password = "12345".Encrypt()

};

//Decrypt

bool isValid = foo.Password.Decrypt("12345");