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Operating Systems AIX Unable to establish connection over TLS 1.2 on AIX 7.1/7.2 Post 303030871 by Naina2019 on Monday 18th of February 2019 09:05:36 AM
Old 02-18-2019
Unable to establish connection over TLS 1.2 on AIX 7.1/7.2

Hello Team,

I would need your help to enable communication over TLS1.2 on AIX 7.1 or 7.2 with IBM JDK 1.8 latest update.

By default, the request is trying to establish a connection over TLSv1 even though TLS 1.2 is explicitly enabled on server as well as on Java 8. The openssl command throws SSL handshake error. We tried with 2 versions of OpenSSL, 1.0.1e and 1.0.2k, but same behavior. Please find the logs below:
Code:
[06:24 AM root@s822-aix01p1 /opt]: openssl s_client -tls1_2 -connect 10.225.120.125:8443
CONNECTED(00000003)
804401144:error:14094438:SSL routines:SSL3_READ_BYTES:tlsv1 alert internal error:s3_pkt.c:1259:SSL alert number 80
804401144:error:1409E0E5:SSL routines:SSL3_WRITE_BYTES:ssl handshake failure:s3_pkt.c:599:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 7 bytes and written 0 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
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: 1550489753
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
---

It seems there is no cipher suites on common which can work for TLS 1.2. Kindly let me know if you need more information to root cause this issue.

Also, is there any way to enable TLS 1.1 & 1.2 in AIX as I have read few articles and got to know that these are not enabled by default on AIX.

Thanks,
Naina

Moderator's Comments:
Mod Comment MOD's comment: Kindly wrap your sample of input and expected output into CODE TAGS [CODE]your code....[/CODE] buttons as per forum's rule.

Last edited by RavinderSingh13; 02-19-2019 at 06:52 AM..
 

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