Is it possible to use Kafka with SSL encryption but with no server verification nor client authentication?
I know that by default the latter is disabled, but is it possible to also disable the former?
I encountered the similar problem. Since kafka is a java process, it will load the default jdk certs when running, which is under /usr/local/jdk/jre/lib/security/cacerts. if your server is trusted there, (in my scenario, my kakfa server is MSK, and is trusted already), then you don't have to config all the keys and certs.
So all in all, I only added kafka config of security.protocol=SSL and it worked.
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I am using SSL self signed certificates to connect MQTT in rabbit MQ broker. Now I need to update them runtime without restarting server. Rabbit MQ trust store gives good solutions for this, but it read only CA certificate from local whitelisted folder or http endpoint. I need to take server certificate and server key from external whitelisted folder or http endpoint. Can I do this using rabbitmq-trust-store plugin or else have any other solution for this.
No need to restart server. Put the new certificate in correct place and wait for a few minutes. Certificates automatically update.
For my current project i need to implement http over tls at client ,for this i need a local server able to simulate this . is there any online or offline tool. which i can use and and see the handshake in wireshark .
For watching the TLS handshake you might not get far enough with wireshark. For such kind of monitoring you would ensure the security is low enough for wireshark to be able getting the session key from watching the handshake for decoding the later parts. Thus, you need to avoid any forward secrecy.
Otherwise any (https) server that is accessible (and willing to talk) to your client will do.
In case you are in an environment that is supported (e.g. any unix/linux), you might try using openssl. It allows setting up a server that will do handshake. And it will log the handshake such that you will be able looking at what is going on. This will eliminate the need for using wireshark for debugging.
For achieving this you need a Web Server accepting connection over TLS.I have achieved this on Apache Tomcat web Server.
TLS configuration needs to be done in the server.xml file present in config directory of Tomcat webserver. Connector tag needs to be added in the server.xml file that contains information like
TLS version to be used, port, List of supported Cipher Suites, Keystore path and password, Truststore path and password.
Any regular Rest client can be used to make a call like Postman client. But to use that over TLS/SSL certificate is needed to be installed in Chrome browser.
Hope this answers your doubt.
Is it possible to store the client certificate for rabbitmq server in the windows certificate store?
I know that doing so in the c# client is supported, but haven't seen any mention of a similar option for the server itself.
the ssl_options in rabbit.config mention only using certificates stored on the file system.
Not at this time. Support for the Windows cert store would have to be added to Erlang itself.
I've created a Spring Boot application that I'm running as a poor man's daemon to call another Java service on another tomcat instance. I'm getting an SSL error when connecting to the other Java service but if I hit the other service with something like SoapUi(or Postman) using the same URL and headers I get an OK response. So something must be wrong with my Spring Boot configuration.
I'm using the same JKS for Spring Boot and SoapUI. I've tried using the cert in the application.properties as well as specifying it on the command line using -Djavax.net.ssl.keyStore as well as the related password parameter.
When I run the other service locally without SSL I can connect just fine via my Spring Boot application.
The SSL error I'm getting is: sun.security.validator.ValidatorException: Netscape cert type does not permit use for SSL server
Best I can think is that SoapUI(or Postman) identify's itself as a client application and my Spring Boot identifies itself as a server? So I think I'm asking how can I make Spring Boot identify itself as a client but I'm still not sure I understand the SSL error to begin with.
You have a multitude of problems. First off, soapui doesn't do verification of the server SSL certificate when it connects, java by default does not. You can however configure java client to also ignore server cert verification.
How to ignore depends on what client you use, apache httpclient is the most common one and you can find details on that in this thread.
Now, you should not really do that. Instead, you should have a trust store that contains the certificates that would validate the server cert. In that case you would be interested in truststore configuration, not a keystore - keystore is for other way around, when you're identifying yourself to some other party. You'd need to import the root CA and intermediate certificates to your trust store, then point to that in your configuration.
Would like to write SSL Socket client server application on the same machine (both server and clients are running same machine). Should I use SSL certificate file (.pem file ) or not required.
Just I want encrypt the data before sending via socket.
Can we encrypt the data without .pem file?
Please advice me.
-Bala
SSL has two major steps:
check the identity of the peer, e.g. make sure you talk to the right one and not an imposter (e.g. man in the middle). This is done with certificates.
encrypt the connection, so that anybody listening on the wire cannot understand what's going on. Obviously encryption helps nothing if somebody is actively listening on the wire, because you failed in step#1. In this case you have no end-to-end encryption but an end-to-imposter and imposter-to-end encryption :)
Considering these arguments: do you still want to skip checking the certificate?
If you want it is doable, just look for anonymous authentication, e.g. ADH or aNULL with openssl.