AuthenticationExample.Web.Controllers.Cryptography.Hash C# (CSharp) Method

		public static string Hash(string password, int iterations = 100000)
		{
			if (password == null) throw new ArgumentNullException("password");

			byte[] salt;
			byte[] bytes;
			using (var algo = new Rfc2898DeriveBytes(password, SaltSize, iterations))
			{
				salt = algo.Salt;
				bytes = algo.GetBytes(Pbkdf2SubkeyLength);
			}

			var iters = BitConverter.GetBytes(iterations);
			if (!BitConverter.IsLittleEndian)
				Array.Reverse(iters);

			var parts = new byte[54];
			Buffer.BlockCopy(salt, 0, parts, 1, SaltSize);
			Buffer.BlockCopy(bytes, 0, parts, 17, Pbkdf2SubkeyLength);
			Buffer.BlockCopy(iters, 0, parts, 50, sizeof(int));
			return Convert.ToBase64String(parts);
		}

        public ActionResult Start(StartRegistrationModel startRegistrationModel)
        {
            if (_repository.GetAll <User>().Any(x => x.Username == startRegistrationModel.Username))
            {
                ModelState.AddModelError("Username", "Username is already in use");
            }

            if (_repository.GetAll <User>().Any(x => x.EmailAddress == startRegistrationModel.EmailAddress))
            {
                ModelState.AddModelError("EmailAddress", "Email address is already in use");
            }

            if (ModelState.IsValid)
            {
                var verificationCode = Cryptography.RandomString(12);
                var user             = new Registration
                {
                    Id               = Guid.NewGuid(),
                    Username         = startRegistrationModel.Username,
                    EmailAddress     = startRegistrationModel.EmailAddress,
                    Password         = Cryptography.Hash(startRegistrationModel.Password),
                    Expires          = DateTime.UtcNow.AddDays(3),
                    VerificationCode = Cryptography.Hash(verificationCode)
                };

                var registrationConfirmation = new RegistrationConfirmation
                {
                    Username         = startRegistrationModel.Username,
                    EmailAddress     = startRegistrationModel.EmailAddress,
                    VerificationCode = verificationCode
                };
                _confirmationEmailer.Send(registrationConfirmation);

                _repository.SaveOrUpdate(user);

                return(RedirectToAction(
                           "Complete", "Registration", new { startRegistrationModel.Username, startRegistrationModel.EmailAddress }));
            }

            return(View(startRegistrationModel));
        }