oauth
What’s the point of a timestamp in OAuth if a Nonce can only be used one time?
The timestamp is used for allowing the server to optimize their storage of nonces. Basically, consider the read nonce to be the combination of the timestamp and random string. But by having a separate timestamp component, the server can implement a time-based restriction using a short window (say, 15 minutes) and limit the amount of …
OAuth – What exactly is a resource owner? When is it not an end-user?
Resource owner can be a machine, not just people. There are many cases where no humans are involved in the entire OAuth flow, especially in enterprise setups. At least, that’s what I meant when I introduced the term in RFC 5849 (and later in OAuth 2.0).
Instagram returning “Matching code was not found or was already used” when using OAuth
We are experiencing the same issue. It appears that logging out of Instagram, then attempting to use Instagram OAuth through our site after we are logged out of Instagram is a workaround.
“An access token is required to request this resource” while accessing an album / photo with Facebook php sdk
There are 3 things you need. You need to oAuth with the owner of those photos. (with the ‘user_photos’ extended permission) You need the access token (which you get returned in the URL box after the oAuth is done.) When those are complete you can then access the photos like so https://graph.facebook.com/me?access_token=ACCESS_TOKEN You can find …
Difference between OAuth 2.0 Two legged and Three legged implementation
First, the legs refer to the roles involved. A typical OAuth flow involves three parties: the end-user (or resource owner), the client (the third-party application), and the server (or authorization server). So a 3-legged flow involves all three. The term 2-legged is used to describe an OAuth-authenticated request without the end-user involved. Basically, it is …
Why is OAuth designed to have request token and access token?
For usability and security reasons. From the Beginner’s Guide to OAuth: https://hueniverse.com/beginners-guide-to-oauth-part-iii-security-architecture-e9394f5263b5 … While mostly an artifact of how the OAuth specification evolved, the two-Token design offers some usability and security features which made it worthwhile to stay in the specification. OAuth operates on two channels: a front-channel which is used to engage the User …
How to integrate OAuth with a single page application?
Most of the time, a redirect is okay even for SPA because users don’t like to put their X service credentials on any other website than X. An alternative will be to use an small popup window, you can check what Discourse does. IMHO a redirect is better than a popup. Google Some providers support …
What is the relationship between owin and oAuth2.0?
Owin Owin is no more than a specification. It stands for Open Web Interface for .Net. In very simplistic terms it is based in the idea that using a few language constructs (delegates and a dictionary) you can create a framework for handling web requests that is independent of where it is hosted (you can …
What is an opaque token?
A JWT has readable content, as you can see for example on https://jwt.io/. Everyone can decode the token and read the information in it. The format is documented in RFC 7519. An opaque token on the other hand has a format that is not intended to be read by you. Only the issuer knows the …