Pac4J has issues encrypting with self-signed certificate

Question content

I am running spring boot 3.2.1

with an embedded keycloak server

<dependency>
            <groupid>org.pac4j</groupid>
            <artifactid>jakartaee-pac4j</artifactid>
            <version>8.0.0</version>
        </dependency>
        <dependency>
            <groupid>org.pac4j</groupid>
            <artifactid>pac4j-oidc</artifactid>
            <version>6.0.1</version>
        </dependency>

No encryption required, everything works fine, pac4j handles things just fine. When I bring in ssl using the ssl bundle, the web application works fine (https) and interactions with the embedded keycloak server work fine, including the following calls: https://localhost:8888/auth/realms/master/.well-known/openid-configuration When made via a web browser on the same machine. However, while performing the authentication process, pac4j seems to throw the following error:

org.pac4j.core.exception.TechnicalException: Error getting URL resource
    at org.pac4j.core.resource.SpringResourceHelper.getResourceInputStream(SpringResourceHelper.java:74)
    at org.pac4j.oidc.metadata.OidcOpMetadataResolver.retrieveMetadata(OidcOpMetadataResolver.java:89)
    at org.pac4j.oidc.metadata.OidcOpMetadataResolver.internalLoad(OidcOpMetadataResolver.java:76)
    at org.pac4j.core.resource.SpringResourceLoader.load(SpringResourceLoader.java:50)
    at org.pac4j.oidc.config.OidcConfiguration.findPkceMethod(OidcConfiguration.java:285)
    at org.pac4j.oidc.redirect.OidcRedirectionActionBuilder.addStateAndNonceParameters(OidcRedirectionActionBuilder.java:115)
    at org.pac4j.oidc.redirect.OidcRedirectionActionBuilder.getRedirectionAction(OidcRedirectionActionBuilder.java:58)
    at org.pac4j.core.client.IndirectClient.getRedirectionAction(IndirectClient.java:136)
    at org.pac4j.core.engine.DefaultSecurityLogic.redirectToIdentityProvider(DefaultSecurityLogic.java:240)
    at org.pac4j.core.engine.DefaultSecurityLogic.perform(DefaultSecurityLogic.java:160)
    at com.ebremer.server.MyCustomSecurityFilter.internalFilter(MyCustomSecurityFilter.java:79)

I added trustallcertificates and trustallhostnames when the system started, but still had no effect.

Correct answer

You need to create a truststore with a self-signed certificate and assign it to the JVM: https://docs.oracle.com/cd /E29585_01/PlatformServices.61x/security/src/csec_ssl_jsp_start_server.html

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