Connection to SFTP failed with Algorithm negotiation fail error (Doc ID 2539590.1)

Last updated on MARCH 06, 2023

Applies to:

Symptoms

In Agile 9.3.3, after customer upgrade to new SFTP, previously-working Process Extension cannot make connection to SFTP with the below errors:

com.jcraft.jsch.JSchException: Algorithm negotiation fail
at com.jcraft.jsch.Session.receive_kexinit(Session.java:520)
at com.jcraft.jsch.Session.connect(Session.java:286)
at com.jcraft.jsch.Session.connect(Session.java:150)
at com.agile.xxxx.DataExport.ExportPDXData.sendFile(ExportPDXData.java:372)
at com.agile.xxxx.DataExport.ExportPDXData.exportData(ExportPDXData.java:200)
at com.agile.xxxx.DataExport.DataExportWorkflowPX.readSupplierFile(DataExportWorkflowPX.java:366)
at com.agile.xxxx.DataExport.DataExportWorkflowPX.doAction(DataExportWorkflowPX.java:180)
at com.agile.px.Extensions2$PXCustomActionNode.invoke(Extensions2.java:710)
at com.agile.px.Extensions2.doCustomEvent(Extensions2.java:517)
at com.agile.px.Extensions2.invokeAction(Extensions2.java:161)
at com.agile.px.PxSessionBean.invokeAction(PxSessionBean.java:86)
at com.agile.px.com_agile_px_PxSession_l8vd22_EOImpl.__WL_invoke(Unknown Source)
at weblogic.ejb.container.internal.SessionRemoteMethodInvoker.invoke(SessionRemoteMethodInvoker.java:32)
at com.agile.px.com_agile_px_PxSession_l8vd22_EOImpl.invokeAction(Unknown Source)
at com.agile.admin.server.px.ProcessExtension.execute(ProcessExtension.java:152)
at com.agile.admin.server.AdminSessionBean.invokeAction(AdminSessionBean.java:6668)
at com.agile.admin.server.AdminSessionBean_yg79hz_EOImpl.__WL_invoke_2(Unknown Source)
at com.agile.admin.server.AdminSessionBean_yg79hz_EOImpl.__WL_invoke_1(Unknown Source)
at com.agile.admin.server.AdminSessionBean_yg79hz_EOImpl.__WL_invoke(Unknown Source)
at weblogic.ejb.container.internal.SessionRemoteMethodInvoker.invoke(SessionRemoteMethodInvoker.java:32)
at com.agile.admin.server.AdminSessionBean_yg79hz_EOImpl.invokeAction(Unknown Source)
at com.agile.ipa.pc.CMHelper.invokeCustomProcessActions(CMHelper.java:415)
at com.agile.ui.pcm.common.ObjectViewHandler.invokeCustomProcessActions(ObjectViewHandler.java:8502)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)

INFO: CheckCiphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
INFO: aes256-ctr is not available.
INFO: aes192-ctr is not available.
INFO: aes256-cbc is not available.
INFO: aes192-cbc is not available.
INFO: CheckKexes: diffie-hellman-group14-sha1,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521
INFO: diffie-hellman-group14-sha1 is not available.

Changes

Cause

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