As a sanity check, are you using an ECDSA certificate on your Tomcat
server? ECDHE-ECDSA-AES256-GCM-SHA384 can’t be negotiated without one.
Perhaps you can try
`openssl s_client -connect a.b.c.d:<port> -msg -debug -cipher
“ECDHE-RSA-AES256-GCM-SHA384”` if you’re using an RSA cert.
-Steven
On 3 Jun 2017, at 22:01, Pravesh Rai wrote:
Hi,
Even though I've disabled SSLvX protocols on both - client
(openssl-1.0.2k)
& server (Java 1.8 with Tomcat), still getting following handshake
error,
while executing:
"openssl s_client -connect a.b.c.d:<port> -msg -debug -cipher
ECDHE-ECDSA-AES256-GCM-SHA384"
...
read from 0x213f50 [0x21c410] (7 bytes => 7 (0x7))
0000 - 15 03 03 00 02 02 28 ......(
<<< TLS 1.2 [length 0005]
15 03 03 00 02
<<< TLS 1.2 Alert [length 0002], fatal handshake_failure
02 28
14756:error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert
handshake failure:.\ssl\s23_clnt.c:769:
...
And, such error happens, only when ECDHE ciphers are selected during
the
connection.
Any clue on this?
Thanks,
PR
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