One uncommon factor that is starting to become wider utilized is “some where you are.” This factor is dependent on your physical location and is largely behavioral. While they can be helpful to monitor for suspicious behavior, they are generally not considered reliable enough to stand as legitimate factors in MFA. Uncommon FactorsĪdditional authentication factor classifications do exist. Cell phone users may be familiar with fingerprint-based authentication, where a scan of your fingerprint is used to authenticate account access and actions. A great example of this type of factor is biometric authentication. The third category is “something you are.” This is, in many ways, the most secure of these factors, as it’s not something that can be stolen or replicated. Something you have, like a one-time password generator, is almost impossible (though not entirely impossible) to steal remotely. This is a stronger level of authentication because it’s not something that is easily stolen from the authenticating user. The second category, “something you have”, refers to an item or device in your possession that provides another level of security. Attackers, by definition, are seeking to capture confidential information, so leaning your entire security posture on a single source that is a principal threat is dangerous. The problem with this factor is that it assumes only the user knows of it. For instance, a password or an account pin is an example of something a user knows. Something You Knowįirstly, “something you know” is something the user can provide based upon their knowledge. The Three Common Authentication Factors 1. Let’s dive deeper into these factor types. When the factors used for authentication are spread between two or more categories, we refer to that solution as being “multi-factor.” A key note here is that using two factors from the same category is, by definition, not multi-factor - if both items used are something you know, such as a pin and a password, that is not multi-factor and is instead a single factor. These categories are broadly separated into “something you know,” “something you have,” and “something you are” - with a few additional classes that we’ll cover shortly. Multi-factor authentication refers specifically to using two or more factors that exist across two or more categories of authentication. While most people are vaguely aware that multi-factor means multiple verification methods, it’s actually a bit more complex than that. Understanding Multi-Factor Authentication (MFA)īefore we dive into the four multi-factor solutions in this piece, we should first define multi-factor and why it’s critical to a proper security posture. We’ll also review four API providers that offer multi-factor authentication flows within their APIs. It allows developers and providers to create a lattice of security systems that make it harder for bad actors to penetrate trusted systems.īut what does the “factor” in MFA mean, and how does it grant additional security? Below, we’ll look at why MFA is so critical to the modern security posture, reviewing common factors and methods to implement it. Multi-factor authentication, or MFA, is a vital element of this comprehensive security approach. Password : => a.Security is never a one-size-fits-all situation - true security strength comes from applying multiple layers and systems working in tandem to deliver a more secure product. HTML = Here we will add 2 form, 1 for Login and another one for 2FA token verification form (ViewBag.Status = null || (Html.BeginForm()) Right Click on Action Method (here right click on Index action) > Add View. > Enter View Name > Select "Empty" under Template dropdown > Select the "LoginModel" (created at previous step) under Model class dropdown > Add. Step-6: Add view for that login action and design. Namespace _2FAGoogleAuthenticator.Controllers You can see here, I have declared a private variable "key", which we will use later for generate Google authenticator code. Private const string key = // any 10-12 char string for use as private key in google authenticator Here I have added "Login" Action to "Home" Controller. Step-5: Add a new action for login to your controller. Here I have created a controller named "HomeController" Go to Solution Explorer > Right Click on Controllers folder form Solution Explorer > Add > Controller > Enter Controller name > Select Templete "empty MVC Controller"> Add. > Select class under code > Enter class name > Add. Go to Solution Explorer > Right Click on the folder ("ViewModel")> Add > New Item. Go to Solution Explorer > Right Click on Project Name > Add > New Folder > Rename. I have added a folder named "ViewModel" first Here I have added a new class "LoginModel.cs" in our application. > Search for "Google.Authenticator"> Install > Close. Go to Solution Explorer > Right Click on References form Solution Explorer > Manage NuGetPackages.
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