SSLPeerUnverifiedException: peer not authenticated

Question

Yet again, the dreary Problem of SSLPeerUnverified, but I\'m not using self signed certificates. I try to connect to a host using https. This host has a correct certificate,

Answer 1

It seems that you need to import the certificate into the trusted keystore your JVM is using. If you are not using a different trusted keystore in your application this will be "cacerts".

You can follow a step by step guide at "How to Fix 'SSLPeerUnverifiedException: peer not authenticated' Exception in Groovy / Java ".

Short version:

1. Run the following command, replace $ADDRESS with the URL, minus the "https://":

   echo -n | openssl s_client -connect $ADDRESS:443 | \
     sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /tmp/$ADDRESS.cert
   

2. Run the following command, replace $ALIAS a short name for the key, $ADDRESS with the cert name from above, $PATH with the path to cacerts in your JRE.

    sudo keytool -importcert -alias "$ALIAS" -file /tmp/$ADDRESS.cert \
      -keystore $PATH/cacerts -storepass changeit
   

Answer 2

Previous answer link doesn't work, so I attach additional:

https://blogs.oracle.com/java-platform-group/entry/self_signed_certificates_for_a