uttamgupta opened a new issue, #746:
URL: https://github.com/apache/mina-sshd/issues/746
### Version
2.14
### Bug description
I am setting key exchange factory like -
`List<KeyExchangeFactory> keyExchangeFactories = List.of(
//DHGClient.newFactory(BuiltinDHFactories.dhg14_256),
DHGClient.newFactory(BuiltinDHFactories.dhgex256),
DHGClient.newFactory(BuiltinDHFactories.ecdhp256),
DHGClient.newFactory(BuiltinDHFactories.ecdhp384),
DHGClient.newFactory(BuiltinDHFactories.ecdhp521));`
Create a client and set like this
sshClient.setKeyExchangeFactories(keyExchangeFactories);
I understand we need to set some parameters but I don't know how. Can any
one help here?
### Actual behavior
```
session.auth().verify(timeOutMillis); -> it throws exception
at com.mina.sshd.common.SshClientImpl.connect(SshClientImpl.java:188)
at com.mina.sshd.common.SshClientImpl.connect(SshClientImpl.java:148)
at SftpTest.setupBefore(SftpTest.java:96)
at
java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at
org.junit.internal.runners.statements.RunBefores.invokeMethod(RunBefores.java:33)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at
org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at
com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
at
com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
at
com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
at
com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
Caused by: org.apache.sshd.common.SshException: [ssh-connection]: Failed
(IllegalArgumentException) to execute: Bad parameters for
diffie-hellman-group-exchange-sha256
at
org.apache.sshd.common.future.AbstractSshFuture.lambda$verifyResult$2(AbstractSshFuture.java:146)
at
org.apache.sshd.common.future.AbstractSshFuture.formatExceptionMessage(AbstractSshFuture.java:206)
at
org.apache.sshd.common.future.AbstractSshFuture.verifyResult(AbstractSshFuture.java:145)
at
org.apache.sshd.client.future.DefaultAuthFuture.verify(DefaultAuthFuture.java:56)
at
org.apache.sshd.client.future.DefaultAuthFuture.verify(DefaultAuthFuture.java:35)
at
org.apache.sshd.common.future.VerifiableFuture.verify(VerifiableFuture.java:121)
at com.mina.sshd.common.SshClientImpl.connect(SshClientImpl.java:183)
... 30 more
Caused by: java.lang.IllegalArgumentException: Bad parameters for
diffie-hellman-group-exchange-sha256
at
org.apache.sshd.common.kex.BuiltinDHFactories$9.create(BuiltinDHFactories.java:189)
at org.apache.sshd.client.kex.DHGClient.getDH(DHGClient.java:130)
at org.apache.sshd.client.kex.DHGClient.init(DHGClient.java:100)
at
org.apache.sshd.common.session.helpers.AbstractSession.performKexNegotiation(AbstractSession.java:940)
at
org.apache.sshd.common.session.helpers.AbstractSession.lambda$doKexNegotiation$3(AbstractSession.java:912)
at
org.apache.sshd.common.future.AbstractSshFuture.lambda$notifyListener$3(AbstractSshFuture.java:178)
at
org.apache.sshd.common.util.threads.ThreadUtils.runAsInternal(ThreadUtils.java:64)
at
org.apache.sshd.common.future.AbstractSshFuture.notifyListener(AbstractSshFuture.java:177)
at
org.apache.sshd.common.future.DefaultSshFuture.addListener(DefaultSshFuture.java:214)
at
org.apache.sshd.common.session.helpers.AbstractSession.doKexNegotiation(AbstractSession.java:909)
at
org.apache.sshd.common.session.helpers.AbstractSession.handleKexInit(AbstractSession.java:868)
at
org.apache.sshd.common.session.helpers.AbstractSession.doHandleMessage(AbstractSession.java:597)
at
org.apache.sshd.common.session.helpers.AbstractSession.lambda$handleMessage$0(AbstractSession.java:546)
at
org.apache.sshd.common.util.threads.ThreadUtils.runAsInternal(ThreadUtils.java:68)
at
org.apache.sshd.common.session.helpers.AbstractSession.handleMessage(AbstractSession.java:545)
at
org.apache.sshd.common.session.helpers.AbstractSession.decode(AbstractSession.java:1729)
at
org.apache.sshd.common.session.helpers.AbstractSession.messageReceived(AbstractSession.java:506)
at
org.apache.sshd.common.session.helpers.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:64)
at
org.apache.sshd.common.io.nio2.Nio2Session.handleReadCycleCompletion(Nio2Session.java:409)
at
org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:382)
at
org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:377)
at
org.apache.sshd.common.io.nio2.Nio2CompletionHandler.lambda$completed$0(Nio2CompletionHandler.java:38)
at
java.base/java.security.AccessController.doPrivileged(AccessController.java:319)
at
org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:37)
at java.base/sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:129)
at java.base/sun.nio.ch.Invoker$2.run(Invoker.java:221)
at
java.base/sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:113)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1583)
```
### Expected behavior
Ssh connection should be verified successfully.
### Relevant log output
```Shell
```
### Other information
_No response_
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