I am trying to hash my password and then trying to store it

Below is my code and m trying to hash my password in mvc

but it is showing error like crypto not exists I m using vs2012

public ActionResult Login(LoginViewModel model)

{

if (ModelState.IsValid)

{

var search = db.Logins.FirstOrDefault(x => x.UserEmail == model.UserEmail);

if (search != null)

{

if (Crypto.VerifyHashedPassword(search.UserPass, model.UserPass))

{

SessionWrapper.UserRole = search.Role.RoleName;

SessionWrapper.UserId = search.UserID;

SessionWrapper.UserEmail = search.UserEmail;

switch (SessionWrapper.UserRole)

case "Admin":

return Redirect("~/Admin/Dashboard");

break;

case "Customer":

return Redirect("~/Customer/Dashboard");

break;

case "Staff":

return Redirect("~/Staff/Dashboard");

break;