Springboot integration with IDP using SAML with a .pem file provided - spring

I am new to spring boot. I am doing an integration with spring security and SAML.
I have
IDP metadata.xml
Certificate.pem
If there are any references which reflects this requirement please share. It would be really of great help.

There are lot many resources in internet available however the one that really helped me to implement the SSO integration using spring boot are
spring-saml2.0-websso-and-jwt-for-mobile-api
spring-security-saml2.0-websso-with-angular-client

Related

Combine OIDC and SAML in Spring Boot

I'm wondering if we can have a single Spring Boot application that supports both OIDC and SAML as authentication protocols at the same time. I could not find much help on this on the internet. If this is not possible, what are my options?
I integrated both in my local Spring Boot application and built it, but it did not work. I'm not sure if I did something wrong or if this is completely unsupported. Please guide.

What is the difference between spring-boot-starter-oauth2-client, spring-cloud-starter-oauth2 and spring-security-oauth2

I am developing a client application for client_credentials grant type flow in OAUTH2.
I am not able to decide on which dependency to use in my project for this purpose among the following.
spring-boot-starter-oauth2-client
spring-cloud-starter-oauth2
spring-security-oauth2
I referred this documentation from spring-projects in which under client-support section it had a table describing the available options. But I am not able to understand which column is referring to which of the above dependencies.
I want to configure a WebClient or RestTemplate which retrieves the OAUTH2 token from the auth-server automatically before accessing a resource-server.
Please guide me in choosing the right artifact for my project.
If you are using Spring Boot you should choose org.springframework.boot:spring-boot-starter-oauth2-client.
This includes Spring Security's OAuth 2.0 Client support and provides Spring Boot auto-configuration to set up OAuth2/Open ID Connect clients.
You can read about how to configure client in the Spring Boot reference documentation.
You can also find additional details in the Spring Security reference documentation.
If you are not using Spring Boot then you should choose org.springframework.security:spring-security-oauth2-client. This also provides Spring Security's latest OAuth 2.0 Client support, but does not include the Spring Boot auto-configuration.
The corresponding documentation is also the Spring Security reference documentation.
The third dependency you mentioned org.springframework.security.oauth:spring-security-oauth2 should not be used because it is part of the legacy Spring Security OAuth project, which is now deprecated.
The functionality that this library provided has now been moved into Spring Security.
That is what the Migration Guide describes, the migration from the legacy project to the latest Spring Security support.
You should not use the org.springframework.cloud:spring-cloud-starter-oauth2 at this time, because it relies on the legacy OAuth support.
This is likely to change in the future, as the Spring Cloud team updates to the latest Spring Security support.

Separate spring authenticator server from resource

i m new with spring security.
I want to know if it's possible to have jwt authentication server separate from resource server,
If possible i need a working example.
Thanks!
You could find an example with Oauth2 and Spring Boot 2.1.9.RELEASE here:
https://github.com/buddhiprab/springboot-oauth2-separating-authorization_server-and-resource_server
All the explanation of this example is here: https://medium.com/#buddhiprabhath/spring-boot-oauth-2-0-separating-authorization-service-and-resource-service-1641ebced1f0
This is doing with the client-credentials flow from OAuth2.
Here is another example using password flow:
https://www.javainuse.com/spring/springboot-oauth2-password-grant
Here's an example that shows a separate auth and resource server. This is from Joe Grandja, who is one of the primary authors of Spring Security:
Old way; Spring Security version 5.1 or earlier with separate spring-security-oauth library: https://github.com/jgrandja/spring-security-oauth-2-4-migrate
New way; Spring Security 5.2+: https://github.com/jgrandja/spring-security-oauth-5-2-migrate
Thank`s everyone! i start to understand how it works! i want to integrate jwt now!

Spring Cloud Gateway with SAML

I want to use Spring Cloud Gateway with SAML. Is this possible?
It seems that the Saml extension for spring security is based on the old Spring Stack and won't work with Gateway.
Has anybody got any experience on this?
I'm afraid SAML is not supported as of time of writing. Spring Cloud Gateway has been redeveloped using Reactive programming and is now based on Spring WebFlux. Only the following authentication methods are currently supported :
OAuth 2.0 or OpenID Connect 1.0
x509 authentication
This is stated on SCG page:
Spring Cloud Gateway is built on Spring Boot 2.x, Spring WebFlux, and
Project Reactor. As a consequence, many of the familiar synchronous
libraries (Spring Data and Spring Security, for example) and patterns
you know may not apply when you use Spring Cloud Gateway. If you are
unfamiliar with these projects, we suggest you begin by reading their
documentation to familiarize yourself with some of the new concepts
before working with Spring Cloud Gateway.
The previous gateway spring-cloud-netflix-zuul, based on Servlets and which supported SAML, has been removed from Spring Cloud 2020.
Here is an open issue on GitHub, SAML2 for reactive environment, where we can vote for asking for this to be implemented.

how to add spring security oauth2 with web security

I can build REST services with spring-security-oauth2
I can build website security with spring-security
And as you know, oauth2 has oauth-server, resource and client side. But I cannot put them together. I want to know how to build oauth2 website that I can login(session) with browser and I can use it as secure REST services(with access token). Any help? Thanks very much.
I'm not expert in Spring, but Spring security examples link has some examples how to implement OAuth2.0 servers and resource servers.

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