The first architecture and scenario that is often used by IT teams, is VPN Remote Access. When is MFA Worth It in Corporate Systems? VPN Remote Access – Scenario #1 The Duo Security Solution Allows You to Use All of the Channels Above. This method works well for offline users, such as those that do not use smartphones. The user is able to press the requested key after completing the phone call. Some solutions on the market enable “callbacks”, which are automatically processed upon a successful pass by the first factor. SMS CodesĪnother type of factor is sending an SMS code that a user has to enter for authentication when prompted. We use this kind of authentication factor in our case study. This method is used in combination with a smartphone with an installed mobile app. The method of push notifications is a good choice for large deployments (often more affordable than hardware tokens), where a user is actively prompted by the mobile app to confirm or deny authentication. The drawback of tokens is that they’re expensive to deploy. Both sides generate a pseudo-random number using the OATH algorithm or any other variant of an OTP generation algorithm. Synchronization takes place between an internal token clock and a token server clock. A One Time Password (OTP) is displayed during synchronization with a reference server, often called a token server. TokensĪ token provides a one-time password that changes after a set period of time, e.g. If you’d like to learn about the certificate authentication process in detail, read about the ITU standards. CertificatesĪnother popular factor – users are registered with their personal certificates and use a X509 structure for authentication. The most popular – users know their username and password, and enter them during authentication. Let’s go over some popular types of various authentication factors. How Does the Second Factor Authentication Work? It can be a physical or logical token, a phone call, a text message or a push notification. A second (or third) factor can take various forms, for example physical, app-based, connected or standalone. The MFA service makes such attacks more difficult, as the malicious actor does not own a second authentication factor. In a hypothetical scenario, a malicious actor could steal the authentication data of a user by spying, bugging or guessing, whether the password is sufficiently secure. This procedure increases the possibility of genuine authentication and gives confidence that it’s not fraudulent. user credentials) and then providing information based on something that they own (e.g. The MFA paradigm involves the user confirming their identity by entering information that they know (e.g. The aim of this type of authentication is to provide an additional level of security, with which a user getting authenticated has to prove their identity by means of various, independent factors. Multi-Factor Authentication (MFA) is already a well-known approach to get a more secure authentication process. How Does Multi-Factor Authentication Work?
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