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https://issues.apache.org/jira/browse/SSHD-567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14952706#comment-14952706
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Max Vetrenko commented on SSHD-567:
-----------------------------------
BC helps me to resolve problem. But build become realy slow. App builds without
BC above 15 second, but with BC build time increases up to 55 seconds. Is any
way to improve BC speed?
> Connection to Cisco caused java.security.InvalidAlgorithmParameterException
> ---------------------------------------------------------------------------
>
> Key: SSHD-567
> URL: https://issues.apache.org/jira/browse/SSHD-567
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 1.0.0
> Environment: Ubuntu 14.04, Oracle JVM 1.8.0_45, Cisco c2900, SSH v2
> Reporter: Max Vetrenko
>
> SshClient client = SshClient.setUpDefaultClient();
> final ClientSession session = client.connect(username, host,
> port).await().getSession();
> This code cause Exception:
> java.security.InvalidAlgorithmParameterException: Prime size must be multiple
> of 64, and can only range from 512 to 2048 (inclusive)
> at
> com.sun.crypto.provider.DHKeyPairGenerator.initialize(DHKeyPairGenerator.java:120)
> at
> java.security.KeyPairGenerator$Delegate.initialize(KeyPairGenerator.java:674)
> at java.security.KeyPairGenerator.initialize(KeyPairGenerator.java:411)
> at org.apache.sshd.common.kex.DHG.getE(DHG.java:66)
> at org.apache.sshd.client.kex.DHGEXClient.next(DHGEXClient.java:110)
> at
> org.apache.sshd.common.session.AbstractSession.doHandleMessage(AbstractSession.java:395)
> at
> org.apache.sshd.common.session.AbstractSession.handleMessage(AbstractSession.java:349)
> at
> org.apache.sshd.client.session.ClientSessionImpl.handleMessage(ClientSessionImpl.java:487)
> at
> org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:848)
> at
> org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:331)
> at
> org.apache.sshd.common.session.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:57)
> at
> org.apache.sshd.common.io.nio2.Nio2Session$2.onCompleted(Nio2Session.java:220)
> at
> org.apache.sshd.common.io.nio2.Nio2Session$2.onCompleted(Nio2Session.java:212)
> at
> org.apache.sshd.common.io.nio2.Nio2CompletionHandler$1.run(Nio2CompletionHandler.java:34)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:31)
> at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
> at sun.nio.ch.Invoker$2.run(Invoker.java:218)
> at
> sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Application terminates after exception.
> OpenSSH server works fine
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