Zsolt Beothy-Elo created KARAF-1513:
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Summary: SSH keystore incompatible if generated with IBM JDK
Key: KARAF-1513
URL: https://issues.apache.org/jira/browse/KARAF-1513
Project: Karaf
Issue Type: Bug
Components: karaf-shell
Affects Versions: 2.2.6
Environment: java version "1.6.0"
Java(TM) SE Runtime Environment (build pxi3260sr10fp1-20120321_01(SR10 FP1))
IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 Linux x86-32
jvmxi3260sr10fp1-20120202_101568 (JIT enabled, AOT enabled)
J9VM - 20120202_101568
JIT - r9_20111107_21307ifx1
GC - 20120202_AA)
JCL - 20120320_01
Reporter: Zsolt Beothy-Elo
Priority: Minor
After starting the container with karaf script, the consquent attempt to
connect to the instance with the client script fails:
/opt/TESB-QA-Workspace/container/bin# ./client -a 8101
950 [NioProcessor-2] WARN org.apache.sshd.client.session.ClientSessionImpl -
Exception caught
org.apache.sshd.common.SshException: KeyExchange signature verification failed
at org.apache.sshd.client.kex.AbstractDHGClient.next(AbstractDHGClient.java:121)
at
org.apache.sshd.client.session.ClientSessionImpl.doHandleMessage(ClientSessionImpl.java:243)
at
org.apache.sshd.client.session.ClientSessionImpl.handleMessage(ClientSessionImpl.java:198)
at
org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:522)
at
org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:225)
...
The following stuff is observed in the karaf log:
23:53:42,043 | INFO | NioProcessor-2 | shd.server.session.ServerSession 87 | 22
- sshd-core - 0.5.0 | Session created...
23:53:42,052 | INFO | NioProcessor-2 | AbstractGeneratorHostKeyProvider 149 |
22 - sshd-core - 0.5.0 | Generating host key...
23:53:42,124 | INFO | NioProcessor-2 | shd.server.session.ServerSession 307 |
22 - sshd-core - 0.5.0 | Client version string: SSH-2.0-SSHD-CORE-0.5.0
23:53:42,125 | INFO | NioProcessor-2 | shd.server.session.ServerSession 149 |
22 - sshd-core - 0.5.0 | Received SSH_MSG_KEXINIT
23:53:42,203 | INFO | NioProcessor-2 | shd.server.kex.AbstractDHGServer 84 | 22
- sshd-core - 0.5.0 | Received SSH_MSG_KEXDH_INIT
23:53:42,246 | INFO | NioProcessor-2 | shd.server.kex.AbstractDHGServer 125 |
22 - sshd-core - 0.5.0 | Send SSH_MSG_KEXDH_REPLY
23:53:42,246 | INFO | NioProcessor-2 | d.common.session.AbstractSession 691 |
22 - sshd-core - 0.5.0 | Send SSH_MSG_NEWKEYS
23:53:42,283 | INFO | NioProcessor-2 | shd.server.session.ServerSession 124 |
22 - sshd-core - 0.5.0 | Received SSH_MSG_DISCONNECT (reason=3, msg=KeyExchange
signature verification failed)
23:53:42,284 | INFO | NioProcessor-2 | d.common.session.AbstractSession 287 |
22 - sshd-core - 0.5.0 | Closing session
After a certain investigation, the conclusion is made that the issue is
connected to the <container>/etc/host.key file, which seems to be generated
different under IBM JVM comparing to the one received on Sun Java VM:
ls -al host*
rw-rr- 1 root root 1202 2012-04-25 13:03 host.key.sunjvm
rw-rr- 1 root root 2581 2012-04-25 12:35 host.key
#
(see the difference in size, at least)
If I replace it with a copy of host.key file taken from a different container
working under Sun JVM, everything works just fine.
The issue reproduces both, with client script running locally and with a remote
one running on Sun Java VM 1.6.0_30.
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