[NIFI-7168] List/Fetch SFTP parameter object not a ECParameterSpec

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.10.0, 1.11.1, 1.11.4
• Fix Version/s: 1.14.0
• Labels: fetchsftp listsftp
• Assignee: David Handermann
• Reporter: Raymond van den Bedum
• Created: 19/Feb/20 08:57
• Updated: 05/Jan/22 16:47
• Resolved: 05/Jan/22 16:47

Description

While fetching data from a sftp site an error occurs.  

 
ListSFTP[id=0159101f-586d-11a7-03ab-a8b0637edcc7] Failed to perform listing on remote host due to parameter object not a ECParameterSpec: net.schmizz.sshj.transport.TransportException: [KEY_EXCHANGE_FAILED] parameter object not a ECParameterSpec
 
 
Auto-refresh
[KEY_EXCHANGE_FAILED], msg=[parameter object not a ECParameterSpec]

debug output:

2020-02-19 09:40:23,963 INFO [Timer-Driven Process Thread-4] n.s.s.t.random.BouncyCastleRandom Generating random seed from SecureRandom.
2020-02-19 09:40:23,963 DEBUG [Timer-Driven Process Thread-4] n.s.s.t.random.BouncyCastleRandom Creating random seed took 0 ms
2020-02-19 09:40:24,291 INFO [Timer-Driven Process Thread-4] net.schmizz.sshj.transport.TransportImpl Client identity string: SSH-2.0-SSHJ_0.27.0
2020-02-19 09:40:24,557 INFO [Timer-Driven Process Thread-4] net.schmizz.sshj.transport.TransportImpl Server identity string: SSH-2.0-Serv-U_15.1.7.238
2020-02-19 09:40:24,557 DEBUG [Timer-Driven Process Thread-4] net.schmizz.sshj.transport.KeyExchanger Sending SSH_MSG_KEXINIT
2020-02-19 09:40:24,635 DEBUG [reader] net.schmizz.sshj.transport.KeyExchanger Received SSH_MSG_KEXINIT
2020-02-19 09:40:24,635 DEBUG [reader] net.schmizz.sshj.transport.KeyExchanger Negotiated algorithms: [ kex=ecdh-sha2-nistp521; sig=ssh-dss; c2sCipher=aes256-cbc; s2cCipher=aes256-cbc; c2sMAC=hmac-sha2-256; s2cMAC=hmac-sha2-256; c2sComp=none; s2cComp=none ]
2020-02-19 09:40:24,666 ERROR [reader] net.schmizz.sshj.transport.TransportImpl Dying because - parameter object not a ECParameterSpec
net.schmizz.sshj.transport.TransportException: parameter object not a ECParameterSpec
	at net.schmizz.sshj.transport.KeyExchanger.gotKexInit(KeyExchanger.java:240)
	at net.schmizz.sshj.transport.KeyExchanger.handle(KeyExchanger.java:356)
	at net.schmizz.sshj.transport.TransportImpl.handle(TransportImpl.java:503)
	at net.schmizz.sshj.transport.Decoder.decodeMte(Decoder.java:159)
	at net.schmizz.sshj.transport.Decoder.decode(Decoder.java:79)
	at net.schmizz.sshj.transport.Decoder.received(Decoder.java:231)
	at net.schmizz.sshj.transport.Reader.run(Reader.java:59)
Caused by: java.security.InvalidAlgorithmParameterException: parameter object not a ECParameterSpec
	at org.bouncycastle.jcajce.provider.asymmetric.ec.KeyPairGeneratorSpi$EC.initialize(Unknown Source)
	at java.security.KeyPairGenerator.initialize(KeyPairGenerator.java:411)
	at net.schmizz.sshj.transport.kex.ECDH.init(ECDH.java:45)
	at net.schmizz.sshj.transport.kex.ECDHNistP.initDH(ECDHNistP.java:82)
	at net.schmizz.sshj.transport.kex.AbstractDHG.init(AbstractDHG.java:46)
	at net.schmizz.sshj.transport.KeyExchanger.gotKexInit(KeyExchanger.java:236)
	... 6 common frames omitted
2020-02-19 09:40:24,666 INFO [reader] net.schmizz.sshj.transport.TransportImpl Disconnected - KEY_EXCHANGE_FAILED
2020-02-19 09:40:24,666 DEBUG [reader] net.schmizz.sshj.transport.KeyExchanger Got notified of net.schmizz.sshj.transport.TransportException: [KEY_EXCHANGE_FAILED] parameter object not a ECParameterSpec
2020-02-19 09:40:24,666 DEBUG [reader] n.s.s.t.TransportImpl$NullService Notified of net.schmizz.sshj.transport.TransportException: [KEY_EXCHANGE_FAILED] parameter object not a ECParameterSpec
2020-02-19 09:40:24,666 DEBUG [reader] net.schmizz.sshj.transport.TransportImpl Setting active service to null-service
2020-02-19 09:40:24,666 DEBUG [reader] net.schmizz.sshj.transport.TransportImpl Sending SSH_MSG_DISCONNECT: reason=[KEY_EXCHANGE_FAILED], msg=[parameter object not a ECParameterSpec]
2020-02-19 09:40:24,666 DEBUG [reader] net.schmizz.sshj.transport.Reader Stopping