OAuth: The Most Widely Used Online Authorization Protocol

EFF-Austin Meetup from May 2023, featuring Daniel Roesler, who previously spoke to us about LetsEncrypt.

BIO:
Daniel is the founder and CTO of UtilityAPI, a clean energy software company specializing in utility customer authorizations and data access. He also maintains multiple privacy and security open-source projects.

Daniel also volunteers for the League of Women Voters, helping make the Voters Guide.

TALK SUMMARY:
Need to connect two websites or apps? Want to login using your social media account? Congrats! You've probably used the OAuth protocol.

The OAuth protocol describes how websites and apps can securely grant another website or app access to a user's account with that user's authorization... without sharing login credentials! It is the most widely used online authorization protocol today, and is the building block for many other authentication and authorization protocols.

In this presentation, we'll explore why the OAuth protocol exists, how it works step-by-step, and build a real integration that uses OAuth.