# Controller
def create
	if request.post?
		@user = User.new(params[:user])
		if @user.save
			flash[:status] = "User created successfully."
		end
	end
end

# Model
before_validation :encrypt_password

def encrypt_password
	self.salt = generate_salt
	self.password = Digest::SHA1.hexdigest(self.password + self.salt)
end

def generate_salt
	characters = ""
	characters << "abcdefghijklmnopqrstuvwxyz"
	characters << "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	characters << "0123456789"

	salt = ""

	10.downto(1) {salt << characters[rand(62)]}

	return salt
end