JSAGA

i am trying to submit a job from windows to linux machine. ssh to linux is possible without password. However, i am still encountering an error. The key pair in windows has been generated using openssh.Can you give me a hint on this ?
The complete error trace is as follows:-

log4j:WARN No appenders could be found for logger (fr.in2p3.jsaga.engine.config.Configuration).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" AuthenticationFailed: com.jcraft.jsch.JSchException: Auth fail
at fr.in2p3.jsaga.adaptor.ssh.SSHAdaptorAbstract.connect(SSHAdaptorAbstract.java:144)
at fr.in2p3.jsaga.engine.factories.JobAdaptorFactory.connect(JobAdaptorFactory.java:129)
at fr.in2p3.jsaga.engine.factories.JobAdaptorFactory.connect(JobAdaptorFactory.java:124)
at fr.in2p3.jsaga.impl.job.AbstractSyncJobFactoryImpl.doCreateJobServiceSync(AbstractSyncJobFactoryImpl.java:65)
at fr.in2p3.jsaga.impl.job.JobFactoryImpl.doCreateJobService(JobFactoryImpl.java:35)
at org.ogf.saga.job.JobFactory.createJobService(JobFactory.java:98)
at org.ogf.saga.job.JobFactory$createJobService.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:129)
at jsaga_output.run(jsaga_output.groovy:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:88)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1058)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:886)
at org.codehaus.groovy.runtime.InvokerHelper.invokePogoMethod(InvokerHelper.java:743)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:726)
at org.codehaus.groovy.runtime.InvokerHelper.runScript(InvokerHelper.java:386)
at org.codehaus.groovy.runtime.InvokerHelper$runScript.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:129)
at jsaga_output.main(jsaga_output.groovy)
Caused by: com.jcraft.jsch.JSchException: Auth fail
at com.jcraft.jsch.Session.connect(Session.java:449)
at com.jcraft.jsch.Session.connect(Session.java:149)
at fr.in2p3.jsaga.adaptor.ssh.SSHAdaptorAbstract.connect(SSHAdaptorAbstract.java:141)
... 26 more

Regards
Bala