I'm working on an app and a part of it is to get the mentions count of this app. I created an app on Twitter and I generated an OAuth signature for the REST API v1.1 GET statuses/mentions_timeline and access the mentions timeline to get the count (https://api.twitter.com/1.1/statuses/mentions_timeline.json). My question is how did we dynamically generate the oauth signature to access the mentions timeline and get the counts.
You can either write your own OAuth provider or use an existing library. Here's a list of 3rd party libraries on the Twitter site:
https://dev.twitter.com/docs/twitter-libraries#dotnet
DotNetOpenAuth is good and there are others.
If you want to write your own, check out Twitter's OAuth documentation:
https://dev.twitter.com/docs/auth/oauth
and here's another good OAuth reference:
The OAuth implementation does not change with the new (controversial) Twitter API. You can keep on generating OAuth signatures just like you did with Twitter API 1.0.
来源：https://stackoverflow.com/questions/12479575/how-to-generate-oauth-signature-with-c-sharp-for-twitter-api-1-1