![]() The OAuth token exchange component can be written by the application developer.This is the component whose documentation and standards support I encouraged you to review above. There are many solutions, including Auth0, Keycloak, and FusionAuth (full disclosure, I am a FusionAuth employee). The OAuth and User management platform is typically going to be a third-party provided component, whether commercial or open source, SaaS or self-hosted.The former will be a mobile application and the latter will live at. You are also responsible for the todo API, which stores todos and makes them available, typically via a JSON API over HTTP. You, the application developer, are responsible for the client application.There are three main parties responsible for the components in this diagram: The Authorization Code grant requires an additional architectural component beyond what you might expect, here termed the OAuth token exchange component because one of the main services it performs is procuring the access token via an exchange with the OAuth server.īelow I’ll cover the flow of the request in great detail, but first, let’s talk about responsibilities. Below is an architecture diagram of this system. Let’s take a deeper look at the Authorization Code grant and how it can be used to protect your API.įor an example application, let’s use a todo application. While there are a number of different ways to do so, if a user is involved, the Authorization Code grant is the recommended choice. In this post, you’ll learn the nuts and bolts of integrating OAuth to protect resources like APIs. If you haven’t you may want to read that article. ![]() It works across all the platforms both browser and server environments.Previously, I examined OAuth at a high level, including the standards and the grants outlined in the specifications. You can easily generate UUIDs in JavaScript using the library called uuid. So it's not recommended to use version 5 UUIDs anymore. However, according to the fast-paced technology these days, SHA-1 is facing the same security issue as MD5. Therefore, version 5 UUIDs replaced MD5 with SHA-1 which is a better hashing algorithm. Nowadays the MD5 hashing algorithm is considered vulnerable and easier to crack. Version 5 - Version 5 UUIDs are similar to version 3 with stronger encryption. However, the possibility of duplication for version 4 UUIDs is extremely low practically. There is no guarantee that version 4 UUIDs will be unique when generated. Version 4 - Version 4 UUIDs are completely randomized. Version 3 - Version 3 makes use of the MD5 hashing algorithm to generate a UUID. Therefore, most UUID libraries skip implementing version 2 which result in version 2 UUIDs not being used practically. This version is reserved by RFC 4122, and no further details are announced. Version 2 - Version 2 UUIDs are similar to version 1 with DCE security. Version 1 UUIDs are mostly used in transactions to ensure uniqueness. However, the pro is version 1 UUIDs generated on the same machine will always be unique according to the different timestamps. The main con of version 1 UUIDs is that the MAC address of the machine used to generate them is exposed which could lead to security issues. ![]() Version 1 - Version 1 UUIDs are generated from the combination of the MAC address of a machine and the current timestamp in nanoseconds.
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