I'm trying to create cert based client authentication using spring 5, without spring boot. Is there a good tutorial on how to do it? (For example: how to specify a truststore, etc...).
I've ended up not using spring security, because I did not need many things it provides, and instead used a simple filter, that checks the data of the used certificate (I also configured the application server used, to allow that certificate).
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i have a spring boot application that provides an API consumed by a frontend app (CRUD operation). This spring boot app is based on oauth2.0 authentication standard to verify the JWT access token received in the header of each API against an authorization server. I want to provide another API to be consumed by a backend (M2M usage). This API will rely on same database (same entities) but it will be slightly different (only Read operations are allowed here and responses contain more fields). Also this new API will rely on an another authorization server to verify the JWT token.
Firstly, i was thinking to provide both API with the same spring boot application, but it looks like it will a hack to support both (for instance issuer uri of the token are diferent, port can be different, path of API are different..).
So, I'm now thinking to separate the 2 APIS into 2 different spring boot application, so that the apps are isolated by nature, but i'm not sure it's a good practice at the end? For instance, what about the concurrency issues that can occur with such design ? In the opposite, can i build easily teh 2 spring boot apps that share the same code repo (some code should be common for both apps). Those are the questions i have, so any suggestion will be appreciated.
You can try with multiple authentication providers. Example given in following -
Java Spring Security config - multiple authentication providers
is possible create authorization server for PKCE authentication in current version of spring security?
I did research and I found out this authorization server project https://github.com/spring-projects-experimental/spring-authorization-server but there is no usable sample for that project.
I also find out that spring recommends Keycloak as authorization server, but it is not fit for my case.
We need be able fetch and verify user against remote service, and then use authorization server only for generating and verifying jwt tokens. In my knowledge Keycloak should holds also users right? So the best solution would be custom spring standalone authorization server. Is it possible in some way? Thank you!
You may have a look to this project: CloudFoundry User Account and Authentication (UAA) Server.
UAA is a (Spring MVC) component of Cloud Foundry but it could be used as a stand alone OAuth2 server. It can support external authentication service. And there is a Pull Request that implements PKCE: https://github.com/cloudfoundry/uaa/pull/939 (not yet merged, but under review).
You can find an example on how to use UAA on baeldung.com.
As far as I know, Spring framework has one more implementation of the authorization server. It is a part of spring-security-oauth project. But this project was moved into maintenance mode.
According to this migration guide, the new authorization server project (that you have already found) will be created to change the legacy solution.
From my point of view now there are several possible options:
Using old legacy spring-security-oauth. More examples with old auth server
Using external services like Keycloak, Auth0, Okta and etc
I am working on a Spring boot application and have received a requirement where a certain endpoint must be accessible only by authorized users that too the user must be present physically at the system serving the app. An optional case is the user could also be able to access the endpoint if the user has SSH access to the server. This makes me think that some sort of key (a file or a program) can be used to unlock the endpoint. Not being a person proficient in security, this has put me at a loss on how to implement such a feature using Spring Boot. Any help is appreciated.
Spring boot doesn't have built in support for this scenario, but what you actually need is PAM (Linux Pluggable Authentication Modules) port for java (JPam can be a good solution).
You can write your own AuthenticationProvider for spring security which will do something like this in it's validation method:
Pam pam = new Pam();
boolean authenticated = pam.authenticateSuccessful(username, password));
This library is good enough documented (pdf)
Another PAM for java solution can be found here libpam4j
I'm currently trying to make a Spring Boot app. I've managed to create successfully user authentication using LDAP and custom logic.
However, I'm trying to add another layer of security on top of that, something like "htaccess" to prevent unauthorized users from even seeing the web page (client requirement), as well as stop Google from indexing the page. This can be a single predefined user (doesn't need to be connected to ldap auth).
I've read about configuring the tomcat realm, tomcat-users etc. but since it's Spring Boot app with embedded tomcat, I can't find a place to successfully configure it.
Does anyone have any idea how to create such setup?
Can anybody provide me with a code sample to access rest service url secured with https using spring rest template.
I have the certificate(.pfx format) password and send cient side certificate to server. server side is used on the client side certificate and established the connection
I want to create a springboot application that work as 2 way SSL between client and server.
Thanks.
I created a sample Spring Boot application that demonstrates how to create a RestTemplate that is configured for SSL client authentication. The sample application acts as the server as well which requires SSL mutual authentication (to demonstrate usage via the test case). In practice, the RestTemplate bean would interact with an external service. Hope this helps.
https://github.com/steve-oakey/spring-boot-sample-clientauth
I should note that the most important part of the example is creating the SSLContext. There are plenty of ways to create the SSLContext, I chose a method that uses the SSLContextBuilder from the org.apache.httpcomponents:httpclient library. Other methods such as using the Java API directly, or setting the javax.net.ssl.* JVM properties would also work.