Can anyone help me with examples of OAuth implementation for providers. I have a sample web application and I want to provide Oauth to other clients for this application.
Any help would be appreciated.
I am currently using this example as a sample but my HttpServeletRequest shows null
http://blogs.steeplesoft.com/posts/2013/07/11/a-simple-oauth2-client-and-server-example-part-i/
Thanks..
You can find some in "Libraries, Products, and Tools" page of OpenID Connect website. Loosely speaking, in the context of OpenID Connect, Identity Provider is OAuth Provider. So, solutions marked as "Identity Provider: Yes" in the page are OAuth Providers.
If you don't mind delegating the "authorization" part to an external server (Authlete), source code examples of OAuth provider can be found at GitHub.
authlete/java-oauth-server
Detailed generic information about what developers have to do to implement OAuth 2.0 and OpenID Connect can be found in Authlete Definitive Guide.
Related
I am trying to implement a ms teams bot (using C#) and one of the requirement is to authenticate the "bot" itself with ping identity provider over OAuth 2.0. Now I have been following the documentation for botframework as well as ping identity but I do not find anything specific that describes about integration of botframework with ping identity provider. I believe I should use "Generic Oauth 2" to integrate the pingfederate with my bot but I don't seem to get the right resources to follow. If anybody could guide me or point towards the right resources, it would be greatly appreciated.
Thanks in advance.
What is the difference between OAuth 2.0 and Auth0? Which one should I use to develop the authentication system?
OAuth 2.0 is a standardized authorization protocol, Auth0 is a company that sells an identity management platform with authentication and authorization services that implements the OAuth2 protocol (among others).
OAuth 2.0 is a protocol that allows a user to grant limited access to their resources on one site, to another site, without having to expose their credentials.
Auth0 is an organisation, who manages Universal Identity Platform for web, mobile and IoT can handle any of them — B2C, B2B, B2E, or a combination.
Source
In case if you cannot understand any of above,
OAuth 2 - is a standard or protocol to implement authorization for any kind of software (windows, mobile or web)
Auth0 - is a software product (cloud and on-prem), that implements the OAuth2 protocol. You can use Auth0 to simplify your
authentication and authorization requirements.
We mainly use auth 2.0 for session based security management at server side. OAuth 2.0 is an authorisation framework that enables a third-party application to obtain limited access to resources the end-user owns. It is about resource access and sharing. While https://auth0.com is a company that sells an identity management platform for authentication related task. So with the help of auth0.com services an app developer don't need to write code for login/registration/social login and its not needed to think about its security. Complete user management task manages by auth0 organisation.
What Identity Provider are you aiming to use?
Auth0, identityserver, ADFS 4.0 etc. all support the OAuth stack.
Using implicit OAuth flow you can connect your Angular application to any of these.
By reading Cognito Identity Provider document, I understand that it looks like it provides out-of-box integration with Facebook / Google / Twitter as Identity Providers.
My application is a developer focused application so I would like enable users sign-up/sign-in with their Github account besides the above Identity Provider's accounts. Is that possible?
If possible, how much extra work (comparing the out-of-box Facebook/Google social sign-up feature) I need to do?
Since first writing this answer, I implemented and published a project that provides a wrapper for Cognito to talk to GitHub. It comes with a SAM/cloudformation deploy script, so you can create a CloudFormation stack that provides the wrapper very easily.
So, OpenID Connect is built on top of OAuth2.0. It's an extension - in OpenID Connect, the OAuth endpoints are there (with one or two extensions or changes), plus some new endpoints.
My understanding from reading the Cognito documentation and the relevant bits of the OpenID Connect and OAuth2.0 specs is that Cognito only uses four of the OpenID endpoints - Authorization, token, userinfo and jwks. You can specify each endpoint separately when configuring an OpenID Connect provider in Cognito. This means it is possible to provide OpenID Connect for github by implementing these endpoints.
Here's a rough plan for implementation:
Authorization: In the spec, this looks to be the same as the OAuth2.0 endpoint (plus some additional parameters that I don't think are relevant to using github as an identity provider). I think you could:
Use the github Auth URL: https://github.com/login/oauth/authorize
Set your GitHub OAuth app to redirect to https://<your_cognito_domain>/oauth2/idpresponse
For the other endpoints, you'll have to roll them yourselves:
Token: This is used to get the access and ID tokens - using a code returned by the authorization callback. It looks the same as the OAuth2.0 endpoint, but also returns an idToken. It looks possible to make an implementation that passes through the code to github's token endpoint (https://github.com/login/oauth/access_token) to get the accessToken, and then generates an idToken, signed with your own private key.
UserInfo: This doesn't exist at all in OAuth2.0, but I think that much of the contents could be filled in with requests to the /user github endpoints (since at this point the request contains the authenticated access_token). Incidentally, this is the reason that there's no open source shim to wrap OAuth2.0 with OpenID connect - OpenID connect's primary contribution is a standardised way of communicating user data - and since OAuth doesn't have a standardised way to do this, we have to write a custom one specific to GitHub (or any other OAuth-only provider we wanted to use for federation).
JWKS: This is the JSON Web Key Set document containing the public key(s) that can be used to verify the tokens generated by the token endpoint. It could be a flat file.
I have implemented the above, and the approach works. I open-sourced the project here.
Unfortunately it's not possible. Cognito Federated Identities can support any OIDC Identity Provider but OAuth2.0 spec does not give that flexibility, so there's no easy way to achieve this unless we add special support for Github.
I am constantly get confused by OpenID Connect and Oauth2, and I read this article and get a sense that Google is using OpenID Connect https://auth0.com/docs/oauth-web-protocol (but I remember google used Oauth2 as providing auth service to 3rd parties), see the following quote
Auth0 supports the OpenID Connect / OAuth2 Login protocol. This is the protocol used by companies like Google, Facebook and Microsoft among others so there are plenty of libraries implementing it on various platforms.
Moreover, the above URL seems to say Auth0 is using OpenID (rather Oauth)? See the following quote:
GET https://YOUR_NAMESPACE/authorize/?
response_type=code
&client_id=YOUR_CLIENT_ID
&redirect_uri=http://YOUR_APP/callback
&state=VALUE_THAT_SURVIVES_REDIRECTS
&scope=openid
http://openid.net/specs/openid-connect-basic-1_0.html
OpenID Connect is basically authentication built on top of OAuth 2.0.
OAuth 2.0 by itself didn't standardise authentication (just authorization) and the confusion you have likely comes from the fact that each of the companies that are now switching to OIDC previously had already poured their own "authentication sauce" on over their OAuth 2.0 implementations. In practice this meant that each had their own set of scopes and their own version of what is a standard /userinfo endpoint in OIDC, but the authorization mechanism in all cases (including OIDC) is based on OAuth 2.0.
To wrap up by answering your question: Yes, both of the endpoints you mention support OpenID Connect.
Please tell me the difference between these third party authentications i.e open id, o-auth1.0, o-auth1.0a ,o-auth2.0 and open id connect.
Well i googled on this but not able to find the exact difference between all these. All the time I got difference between o-auth and open id but not about all these together.
Any reference or any explanation would be appreciated. Thanks in advance.
First of all, note the difference between authentication and authorization: not all the protocols in your question actually do authentication.
During authentication you prove your identity to someone else (e.g. show driving license), see OpenId.
During authorization you give access rights to someone else to use a protected resource (e.g. give car keys), probably without exposing your identity, see OAuth. OAuth 1.0 works, but a common complaint is that both server and client has to do a lot of cryptography, so it's not lightweight on the client side and does not support embedded clients (e.g. javascript). OAuth 1.0a addressed a security issue, but it's obsolete, the fix was included into the original spec (RFC 5849). OAuth 2.0 supports both remote web application and embedded/javascript clients and allows implementing a client application much easier.
OpenId Connect unites OpenId and OAuth (thus providing both authentication and authorization) as a small extension to the OAuth 2.0 protocol.