AuthenticationExample.Web.Controllers.Cryptography.Verify C# (CSharp) Метод

		public static bool Verify(string hashedPassword, string password)
		{
			if (hashedPassword == null) throw new ArgumentNullException("hashedPassword");
			if (password == null) throw new ArgumentNullException("password");

			var parts = Convert.FromBase64String(hashedPassword);
			if (parts.Length != 54 || parts[0] != 0)
				return false;

			var salt = new byte[SaltSize];
			Buffer.BlockCopy(parts, 1, salt, 0, SaltSize);

			var bytes = new byte[Pbkdf2SubkeyLength];
			Buffer.BlockCopy(parts, 17, bytes, 0, Pbkdf2SubkeyLength);

			var iters = new byte[sizeof(int)];
			Buffer.BlockCopy(parts, 50, iters, 0, sizeof(int));

			if (!BitConverter.IsLittleEndian)
				Array.Reverse(iters);

			var iterations = BitConverter.ToInt32(iters, 0);

			byte[] challengeBytes;
			using (var algo = new Rfc2898DeriveBytes(password, salt, iterations))
				challengeBytes = algo.GetBytes(32);

			return ByteArraysEqual(bytes, challengeBytes);
		}

        public ActionResult Create(SessionViewModel sessionViewModel)
        {
            User user = null;

            if (ModelState.IsValid)
            {
                user = _repository.GetAll <User>().SingleOrDefault(x => x.Username == sessionViewModel.Username);
                if (user == null)
                {
                    ModelState.AddModelError(string.Empty, errorMessage);
                }
            }

            if (ModelState.IsValid)
            {
                if (!Cryptography.Verify(user.Password, sessionViewModel.Password))
                {
                    ModelState.AddModelError(string.Empty, errorMessage);
                }
            }

            if (ModelState.IsValid)
            {
                _authenticator.SetCookie(user.Username);
                var returnUrl = sessionViewModel.ReturnUrl;
                if (returnUrl != null)
                {
                    Uri returnUri;
                    if (Uri.TryCreate(returnUrl, UriKind.Relative, out returnUri))
                    {
                        return(Redirect(sessionViewModel.ReturnUrl));
                    }
                }

                return(RedirectToAction("Index", "Home"));
            }

            return(View("New", sessionViewModel));
        }