Troubleshooting Tips for Debugging SSL Certificates

September 16, 2020 by Larry Thomas

 

Today's article is intended to help you if you receive a "Debugging SSL Certificate Problems" error message. SSL handshake failure cause

SSL handshake failure occurs when the operating system has not been granted read access, which prevents the web server from fully authenticating. This means that the browser's connection to the web server is not secure.

 

 



Here's a quick example of reading debug information. Please note that the output is non-standard and may change from one exit to another. We use SunJSSE by default Debug printing X509KeyManager and X509TrustManager Information.



This example assumes a basic understanding of SSL / TLS. Protocol. See SSL Protocol Overview for more information. For more information, see the JSSE Reference Manual section. Protocols (first contact messages, etc.).


debug ssl certificate problems

In this example, we are connecting to SSLSocketClientWithClientAuth Sample Application for A simple HTTPS server that requires client authentication and then sends HTTPS request and get a response.

There are many ways to build trust By default, X509TrustManager does not execute trust types. You can provide your own X509TrustManager for them if needed. SSLContext.



The server asks the client to identify itself with X509. Compartment for certificates with the general name (CN =) "Duke". in Server X509TrustManager provides the ability to reject all Customer supplied identifiers(or lack thereof). IN In practice, you will probably use a certificate signed A certification authority and a list of trusted certification authorities are included in this message. instead.


How do you fix a TLS problem?

How to troubleshoot TLS negotiation issues
  1. Try visiting other websites and see if the problem persists.
  2. If you are using a Wi-Fi network, try switching to a wired network.
  3. Try other network connections. For example, use a different router or switch to a public network.


At this point, the SSL / TLS client should verify the credentials peer to make sure they communicate with Server. HttpsURLConnection will check and invoke the hostname HostnameVerifier if there was a problem but a raw SSLSocket Not. This check must be done manually, but we Don't mind it yet.



 

 

 

 

 

 

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