this post was submitted on 31 Dec 2023
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I can't get TLS to work (self.java)
submitted 11 months ago* (last edited 11 months ago) by Red1C3 to c/java
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I've been trying to follow the tutorial here, after failing to apply it to my project I tried to do the tutorial as it is, and I'm still getting handshaking failures.

On the server side, I have the following exception: javax.net.ssl.SSLHandshakeException: No available authentication scheme

While on the client side, I have the following: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure

I'd like to add that I'm starting fresh without any previous any keystore nor truststore, executing the commands in the tutorial does generate the key and trust stores.

I've tried making the CN the same as my machine hostname too, didn't work, nothing worked, the server and the client could never handshake.

Side note: this is just a demo I'm doing, so I don't really care if it has security flaws, I'm just trying to get TLS to work.

Thx in advance.

Update: I downgraded from JDK21 to JDK17 and it worked fine :/

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[โ€“] [email protected] 1 points 11 months ago (1 children)

Is the client presenting a client certificate? handshake_failure with mTLS generally means the client isn't presenting a certificate when the server requires it

[โ€“] Red1C3 1 points 11 months ago

Yes I guess, downgrading my JDK really did make it work, probably something in the docs has the answer to why something has stopped working