What is the difference between oauth 2.0, auth0 and wso2? I saw some related post where are explained, more or less well, what are the differences between oauth 2.0 and auth0 but ws02 is not included in the explanation.
OAuth 2.0 is a widely used specification for authorization aspects of resources: https://oauth.net/2/
Auth0 and WSO2 Identity Server are two identity providers (IAM solutions). Both support OAuth 2.0.
Auth0: https://auth0.com/docs/protocols/protocol-oauth2
WSO2 IS: https://is.docs.wso2.com/en/latest/learn/working-with-oauth/
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I was working on a project which uses Jwt tokens for authentication and authorization, now I have a new requirement in which I have to use Oauth 2.0 for security purposes and SSO.
I wanted to know is there a way out to convert my Jwt written code to use Oauth 2.0
Implementing SSO in my application and from app-1 i need to make a rest call to app-2. Login in app-1 with SAML and authenticated successfully and trying for rest call from app-1 with openid but since authentication is using saml only so not able to get the access/bearer token. Please help how to get the access/bearer token from saml request/response. I'm using Keycloak Server for SSO implementation.
You can't.
REST API need a JWT token not a SAML one.
Change SAML to OpenID Connect and it will work.
(1) OpenID Connect 1.0 is a simple identity layer on top of the OAuth 2.0 protocol. It allows Clients to verify the identity of the End-User based on the authentication performed by an Authorization Server, as well as to obtain basic profile information about the End-User in an interoperable and REST-like manner.
(2) Presently there is no IETF draft document regarding SAML 2.0 Profile for OpenID Connect client.
We can refer to the IETF draft document SAML 2.0 Profile for OAuth 2.0 client.
The OAuth 2.0 Access Token using SAML Assertion filter enables an OAuth client to request an access token using a SAML assertion. This supports the OAuth 2.0 SAML flow, which is used when a client wishes to utilize an existing trust relationship, expressed through the semantics of the SAML assertion, without a direct user approval step at the authorization server. For more details on supported OAuth flows, see API Gateway OAuth 2.0 authentication flows.
(3) Both Auth0 and open-source WSO2 Identity Server implement the SAML profile for OpenID Connect/OAuth to convert SAML token to OpenID Connect/OAuth token, as demonstrated by Auth0 SAML Configuration and WSO2 Adding and Configuring an Identity Provider. In other words, Auth0 and WSO2 Identity Server can relay SAML authentication provided by SAML IdP to either OpenID Connect client or OAuth 2.0 client.
1) I don't concretely underdstand fundamental differences between SAML and OAuth. OAuth is for authorization but OpenId for authentication too and SAML both authorization and authentication ? And why to use a combination of both technologies ?
2) Inside SAML tehcno, what is the difference between shibboleth and OpenSAML ?
I know OpenSAML has been developped by Shibboleth and is used for Shibboleth solution but why to not use it directly without Shibbloeht ? What does Shibboleth bring ?
Thank you,
They are two different protocols and you would never use them together.
SAML is older - not good for mobile - mainly for enterprise - XML tokens.
OpenId Connect is newer - good for mobile - JWT tokens.
OpenID Connect is a standard for how to use OAuth for authentication. OAuth is for authorisation.
SAML is a protocol definition - you can't use it as such - it's a document.
OpenSAML is an implementation of the SAML protocol.
Shibboleth is an identity provider that uses OpenSAML to deliver the SAML functionality.
Does Google support 2-Legged OAuth 2.0 for IMAP? I know Google supports 3-legged OAuth 2.0 for IMAP, but I can't find any documentation for 2-Legged OAuth 2.0 for IMAP.
Yes, it is possible and the relevant documentation can be found at https://developers.google.com/accounts/docs/OAuth#GoogleAppsOAuth and examples are provided
on https://developers.google.com/accounts/docs/OAuth2ServiceAccount
I am a beginner to OAuth - so i want to know what is the difference between Oauth and Oauth Lite
OAuth is an authorization protocol.
OAuth::Lite is a perl library implementing the OAuth 1.0 protocol. If you develop a web service that should provide OAuth authorization or if you develop a perl application that should connect to some OAuth provider, you can use this library.
For OAuth 2.0 there's respectively the OAuth::Lite2 library.