[jira] [Created] (SSHD-589) [regression][kex] client 1.x cannot connect to a machine 0.14 could

["Alon Bar-Lev (JIRA)" <ji...@apache.org>]

Alon Bar-Lev created SSHD-589:
---------------------------------

             Summary: [regression][kex] client 1.x cannot connect to a machine 0.14 could
                 Key: SSHD-589
                 URL: https://issues.apache.org/jira/browse/SSHD-589
             Project: MINA SSHD
          Issue Type: Bug
    Affects Versions: 1.0.0, 1.1.0
         Environment: Fedora
$ java -version
openjdk version "1.8.0_60"
OpenJDK Runtime Environment (build 1.8.0_60-b27)
OpenJDK 64-Bit Server VM (build 25.60-b23, mixed mode)

Gentoo
$ java -version
openjdk version "1.8.0_60"
OpenJDK Runtime Environment (IcedTea 3.0.0pre06+ra9817b9f8a21) (Gentoo icedtea-3.0.0_pre06)
OpenJDK 64-Bit Server VM (build 25.60-b23, mixed mode)

$ sshd -V
OpenSSH_6.9p1, OpenSSL 1.0.1k-fips 8 Jan 2015

            Reporter: Alon Bar-Lev


Using:
1. Same JVM to run test of 1.x and 0.x
2. The SunEC provider is not available.
3. BouncyCastle is not used.
4. The same Fedora-22 remote is accessed.

Using sshd-core-0.14 works, using sshd-core-1.0.1(master, and any 1.x) produces:
java.lang.IllegalStateException: Unable to negotiate key exchange for kex algorithms (client: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 / server: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1)
        at org.apache.sshd.common.session.AbstractSession.negotiate(AbstractSession.java:1334)
        at org.apache.sshd.common.session.AbstractSession.handleKexInit(AbstractSession.java:478)
        at org.apache.sshd.common.session.AbstractSession.doHandleMessage(AbstractSession.java:412)
        at org.apache.sshd.common.session.AbstractSession.handleMessage(AbstractSession.java:361)

Per Lyor request, added some more debug information into master.

Attached:
1. Full test environment (test1.tar.gz) a directory per version, test using:
JAVA_OPTS="-Djava.util.logging.config.file=./logging.properties" ./ssh-test.sh --host=XXXX --password=XXXX --command="echo hello"
2. Full debug log of 0.14 and master.
3. Diff of logging.

This is a behaviour change in 1.x, so far we have failed to nail it.



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