Hi akka-user,

I'm trying to host a simple server that uses HTTPS. I'm having exactly the 
same problem as pointed out in this issue 
<https://github.com/akka/akka/issues/19306>,
where Chrome responds with ERR_SSL_VERSION_OR_CIPHER_MISMATCH.
It worked when I used a self-signed certificate (while Chrome complained 
that the cert wasn't trusted, I could go through and view the page),
but now that I'm using a proper trusted certificate chain it's not working.
This leads me to think there's something wrong with my keystore, but I 
don't know where to start in diagnosing that.

Adding the -Djavax.net.debug=all flag to my build.sbt didn't cause anything 
to be printed,
but I tried openssl s_client -connect <domain>:<port> and the output was as 
follows.

CONNECTED(00000003)

140735126758224:error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 
alert handshake failure:s23_clnt.c:769:

---

no peer certificate available

---

No client certificate CA names sent

---

SSL handshake has read 7 bytes and written 308 bytes

---

New, (NONE), Cipher is (NONE)

Secure Renegotiation IS NOT supported

Compression: NONE

Expansion: NONE

No ALPN negotiated

SSL-Session:

    Protocol  : TLSv1.2

    Cipher    : 0000

    Session-ID: 

    Session-ID-ctx: 

    Master-Key: 

    Key-Arg   : None

    PSK identity: None

    PSK identity hint: None

    SRP username: None

    Start Time: 1478765759

    Timeout   : 300 (sec)

    Verify return code: 0 (ok)

---


I don't know much about web protocols and don't really understand this 
output.

Any idea what the problem might be and how I can fix it?


Thank you!

Julian

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