OAuth 1 is not secure anymore! Please do not use it! Version 1.0a tries to fix the problem.
Most platforms are using OAuth 2 instead. Both versions are incompatible. If you try to use version 1, you will get frustrated.
This extension provides OAuth 1.0a consumer and provider bindings. OAuth is an authorization protocol built on top of HTTP which allows applications to securely access data without having to store usernames and passwords.