SCP-SFTP job failed with an error <Internal error. Unsupported key format>
Article ID: 200637
Updated On: 09-12-2023
Products
CA Workload Automation AE - Business Agents (AutoSys)
CA Workload Automation AE - System Agent (AutoSys)
CA Workload Automation AE - Scheduler (AutoSys)
Workload Automation Agent
Autosys Workload Automation
Issue/Introduction
SCP job using the key credentials failed with an error <Internal error. Unsupported key format.>
Job Definition:
/* ----------------- scp_job ----------------- */
insert_job: scp_test job_type: SCP
machine: win-test
owner:scpadmin@securetransfer.com
permission:
date_conditions: 0
alarm_if_fail: 0
scp_transfer_direction: DOWNLOAD
scp_server_name: securetransfer.com
scp_server_port: 22
scp_remote_dir: "/from_xplan_UAT"
scp_remote_name: "*"
scp_local_name: "E:\\XPLAN_Files\\20200928"
scp_target_os: UNIX
scp_protocol: SFTP
scp_local_user: administrator@CC
scp_delete_sourcedir: 0
scp_create_targetdir: 1
scp_transfer_mode: BINARY
Machine definition:
/* ----------------- lvntest.server.com ----------------- */
insert_machine: lvntest.server.com
type: a
max_load: 1
factor: 1.00
description: AIDA
port: 49155
node_name: lvntest.server.com
agent_name: ST1_lvntest
/* key_to_agent: *** masked value ***/
encryption_type: AES
character_code: ASCII
$ autorep -J scp_job -d
Job Name Last Start Last End ST/Ex Run/Ntry Pri/Xit
________________________________________________________________ ____________________ ____________________ _____ ________ _______
scp_job 09/30/2020 21:57:21 09/30/2020 21:57:21 FA 37664388/1 1
Status/[Event] Time Ntry ES ProcessTime Machine
-------------- --------------------- -- -- --------------------- ----------------------------------------
STARTING 09/30/2020 21:57:21 1 PD 09/30/2020 21:57:21 lvntest.server.com
RUNNING 09/30/2020 21:57:21 1 PD 09/30/2020 21:57:22 lvntest.server.com
FAILURE 09/30/2020 21:57:21 1 PD 09/30/2020 21:57:22
<Internal error. Unsupported key format.>
The CA WA System Agent on the server "lvntest.server.com" has an exception -
plugin_log_ftp.log:
==============
Log Started 09/30/2020 22:09:16.244+1000 with level 5
-----------------------------------------------------
09/30/2020 22:09:16.244+1000 1 FtpPlugin.ftp Internal Thread.CybWOBScpTransferHandler.processWob[:800] - java.lang.IllegalArgumentException: Unsupported key format.
at com.jscape.inet.ssh.util.SshParameters.a(Unknown Source)
at com.jscape.inet.ssh.util.SshParameters.<init>(Unknown Source)
at cybermation.plugins.ftp.wobhandler.CybWOBScpTransferHandler.processWob(CybWOBScpTransferHandler.java:700)
at cybermation.plugins.library.base.CybRMIExternalPluginBaseManager.processWob(CybRMIExternalPluginBaseManager.java:628)
at cybermation.plugins.library.base.CybRMIExternalPluginBaseManager.run(CybRMIExternalPluginBaseManager.java:461)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.jscape.inet.ssh.util.keyreader.FormatException: Unsupported data format.
at com.jscape.inet.ssh.util.keyreader.Pkcs8KeyPairFormat.restoreKeyPair(Unknown Source)
at com.jscape.inet.ssh.util.KeyPairAssembler.restoreKeyPair(Unknown Source)
at com.jscape.inet.ssh.util.KeyPairAssembler.restoreKeyPair(Unknown Source)
at com.jscape.inet.ssh.util.KeyPairAssembler.restoreKeyPair(Unknown Source)
at com.jscape.inet.ssh.util.SshParameters.a(Unknown Source)
at com.jscape.inet.ssh.util.SshParameters.<init>(Unknown Source)
at cybermation.plugins.ftp.wobhandler.CybWOBScpTransferHandler.processWob(CybWOBScpTransferHandler.java:700)
at cybermation.plugins.library.base.CybRMIExternalPluginBaseManager.processWob(CybRMIExternalPluginBaseManager.java:628)
at cybermation.plugins.library.base.CybRMIExternalPluginBaseManager.run(CybRMIExternalPluginBaseManager.java:461)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Unsupported data format.
at com.jscape.util.i.gb.a(Unknown Source)
at com.jscape.inet.ssh.util.keyreader.Pkcs8KeyPairFormat.restoreKeyPair(Unknown Source)
at com.jscape.inet.ssh.util.KeyPairAssembler.restoreKeyPair(Unknown Source)
at com.jscape.inet.ssh.util.KeyPairAssembler.restoreKeyPair(Unknown Source)
at com.jscape.inet.ssh.util.KeyPairAssembler.restoreKeyPair(Unknown Source)
at com.jscape.inet.ssh.util.SshParameters.a(Unknown Source)
at com.jscape.inet.ssh.util.SshParameters.<init>(Unknown Source)
at cybermation.plugins.ftp.wobhandler.CybWOBScpTransferHandler.processWob(CybWOBScpTransferHandler.java:700)
at cybermation.plugins.library.base.CybRMIExternalPluginBaseManager.processWob(CybRMIExternalPluginBaseManager.java:628)
at cybermation.plugins.library.base.CybRMIExternalPluginBaseManager.run(CybRMIExternalPluginBaseManager.java:461)
at java.lang.Thread.run(Thread.java:748)
Environment
Release : 11.3.6
Component : CA Workload Automation AE (AutoSys)
Cause
The failure is due to Unsupported public/private key file format for user authentication.
Resolution
The SFTP job does not support public or private keys that are generated using Putty Gen or that are encrypted in DES3 format.
Generate the public/private key file for the SFTP user login using command -
$ ssh-keygen -t rsa -b 2048 -m PEM
(The above command generates the key file in PEM format)
Store the key credentials for the job owner using the command autosys_secure. The procedure is documented here -
https://community.broadcom.com/communities/community-home/librarydocuments/viewdocument?DocumentKey=531266e1-ddf0-457c-b1b4-0c3979ac7517
Additional Information
Secure Copy Job:
https://techdocs.broadcom.com/us/en/ca-enterprise-software/intelligent-automation/workload-automation-ae-and-workload-control-center/11-3-6-SP8/scheduling/ae-scheduling/secure-copy-jobs-overview.html
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