Now we will find out what the JVM supports (I did that through Clojure but you could have just as well used Java directly notice the property): sh $ env -i java =ssl:handshake:verbose java -jar clojure-1.8.0.jar Here we see that the server only supports TLS version 1.2 ( ssl-enum-ciphers: TLSv1.2:) and the listed ciphers, such as TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA. We will use nmap for that ( brew install nmap on OSX): map -script ssl-enum-ciphers -p 443
Feel free to just skim through the outputs and return to them later after they were explained. We will first find out what both the server and the JVM support and compare it to see where they disagree.
Java 6 legacy for mac r jvm how to#
You will now learn how to find out what is the case. Sorry, none of the cryptographic protocols/versions and cipher suites is accepted both by the JVM and the server.įor instance, the server requires a higher version of TLS than the (old) JVM supports or it requires stronger cipher suites than the JVM knows.
What it wants to say is, most likely, something like this: The infamous Java exception : Received fatal alert: handshake_failure is hardly understandable to a mere mortal.
0 kommentar(er)
