Could you please get back to us on this query.
We are not able to proceed due to this error.

Thanks and Regards,
Usha




From:        Usha Ladkani/India/IBM
To:        ymnk@jcraft.com (Atsuhiko Yamanaka)
Cc:        jsch-users@lists.sourceforge.net
Date:        03/20/2013 05:03 PM
Subject:        Re: [JSch-users] jsch-0.1.49



I tried connecting to some other SFTP server. that gives me a diff error. as below.

INFO: Connecting to 9.126.142.193 port 2222
INFO: Connection established
INFO: Remote version string: SSH-2.0-${POM.ARTIFACTID}-${POM.VERSION}
INFO: Local version string: SSH-2.0-JSCH-0.1.49
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: arcfour256 is not available.
INFO: CheckKexes: diffie-hellman-group14-sha1
INFO: SSH_MSG_KEXINIT sent
INFO: SSH_MSG_KEXINIT received
INFO: kex: server: diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
INFO: kex: server: ssh-rsa
INFO: kex: server: aes128-cbc,3des-cbc
INFO: kex: server: aes128-cbc,3des-cbc
INFO: kex: server: hmac-sha2-256
INFO: kex: server: hmac-sha2-256
INFO: kex: server: none
INFO: kex: server: none
INFO: kex: server:
INFO: kex: server:
INFO: kex: client: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1
INFO: kex: client: ssh-rsa,ssh-dss
INFO: kex: client: 3des-cbc,aes128-cbc
INFO: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO: kex: client: hmac-sha2-256
INFO: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO: kex: client: none
INFO: kex: client: none
INFO: kex: client:
INFO: kex: client:
INFO: kex: server->client aes128-cbc hmac-sha2-256 none
INFO: kex: client->server 3des-cbc hmac-sha2-256 none
INFO: SSH_MSG_KEXDH_INIT sent
INFO: expecting SSH_MSG_KEXDH_REPLY
INFO: ssh_rsa_verify: signature true
WARN: Permanently added '9.126.142.193' (RSA) to the list of known hosts.
INFO: SSH_MSG_NEWKEYS sent
INFO: SSH_MSG_NEWKEYS received
INFO: SSH_MSG_SERVICE_REQUEST sent
INFO: Disconnecting from 9.126.142.193 port 2222
com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: End of IO Stream Read

Thanks and Regards,
Usha





From:        Usha Ladkani/India/IBM
To:        ymnk@jcraft.com (Atsuhiko Yamanaka)
Cc:        jsch-users@lists.sourceforge.net
Date:        03/20/2013 04:49 PM
Subject:        Re: [JSch-users] jsch-0.1.49



Additionally these are logs

INFO: Connecting to 9.113.213.171 port 41099
INFO: Connection established
INFO: Remote version string: SSH-2.0-SFTP Server
INFO: Local version string: SSH-2.0-JSCH-0.1.49
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: arcfour256 is not available.
INFO: CheckKexes: diffie-hellman-group14-sha1
INFO: SSH_MSG_KEXINIT sent
INFO: SSH_MSG_KEXINIT received
INFO: kex: server: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1
INFO: kex: server: ssh-rsa
INFO: kex: server: aes256-cbc,3des-ctr,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,blowfish-cbc,aes128-cbc,aes192-cbc,arcfour,arcfour128,arcfour256,twofish256-cbc,twofish192-cbc,twofish128-cbc,cast128-cbc
INFO: kex: server: aes256-cbc,3des-ctr,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,blowfish-cbc,aes128-cbc,aes192-cbc,arcfour,arcfour128,arcfour256,twofish256-cbc,twofish192-cbc,twofish128-cbc,cast128-cbc
INFO: kex: server: hmac-sha256,hmac-sha1,hmac-md5,hmac-md5-96,hmac-sha1-96,hmac-sha256@ssh.com
INFO: kex: server: hmac-sha256,hmac-sha1,hmac-md5,hmac-md5-96,hmac-sha1-96,hmac-sha256@ssh.com
INFO: kex: server: none,zlib
INFO: kex: server: none,zlib
INFO: kex: server:
INFO: kex: server:
INFO: kex: client: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1
INFO: kex: client: ssh-rsa,ssh-dss
INFO: kex: client: 3des-cbc,aes128-cbc
INFO: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO: kex: client: hmac-sha2-256
INFO: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO: kex: client: none
INFO: kex: client: none
INFO: kex: client:
INFO: kex: client:
INFO: Disconnecting from 9.113.213.171 port 41099
com.jcraft.jsch.JSchException: Algorithm negotiation fail


Thanks and Regards,
Usha




From:        Usha Ladkani/India/IBM
To:        ymnk@jcraft.com (Atsuhiko Yamanaka)
Cc:        jsch-users@lists.sourceforge.net
Date:        03/20/2013 04:20 PM
Subject:        Re: [JSch-users] jsch-0.1.49



Thank you for quick  reply.

This test code works .

But if i add

        config.put("mac.c2s", "hmac-sha2-256");
        session.setConfig(config);

before session.connect(); .

I get com.jcraft.jsch.JSchException: Algorithm negotiation fail

I want to specifically use only hmac-sha2-256 and hmac-sha2-512.




Thanks and Regards,
Usha





From:        ymnk@jcraft.com (Atsuhiko Yamanaka)
To:        Usha Ladkani/India/IBM@IBMIN
Cc:        jsch-users@lists.sourceforge.net
Date:        03/20/2013 03:22 PM
Subject:        Re: [JSch-users] jsch-0.1.49




Hi,

  +-From: Usha Ladkani <uladkani@in.ibm.com> --
  |_Date: Wed, 20 Mar 2013 14:05:49 +0530 _____
  |

  |We found that jsch-0.1.49 supports both these algorithms.
  |I have implemented the code to have

  |config.put("cipher.c2s", "3des-cbc,aes192-cbc,aes128-cbc,aes256-cbc");
  |config.put("mac.c2s", "hmac-sha2-256");
  |session.setConfig(config);
  |session.connect();

  |Some how It does not work with the SFTP server which supports this algo.
  |and gives error.

  |com.jcraft.jsch.JSchException: Algorithm negotiation fail
  |        at com.jcraft.jsch.Session.receive_kexinit(Session.java:559)

Try the following sample program,
 
http://www.jcraft.com/jsch/examples/Logger.java
You may find the reason for that problem in its outputs.


Sincerely,
--
Atsuhiko Yamanaka
JCraft,Inc.
1-14-20 HONCHO AOBA-KU,
SENDAI, MIYAGI 980-0014 Japan.
Tel +81-22-723-2150
Skype callto://jcraft/
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http://twitter.com/ymnk
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