Thread: [JSch-users] Public key authentication is failing through a stand alone program using jsch bundle
Status: Alpha
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From: Pushkar K M. <pus...@in...> - 2012-06-25 08:39:31
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Hi , I am trying to connect from a stand alone SFTP client using jsch 0.1.36 to an SFTP server and getting exceptions: The key pair were created by some one else and it uses a passphrase. We are able to login to the server via command prompt using the same key pair. I have gone through the archive and spotted similar question but no solution. Can you please help on why this can happen? Sample program; ChannelSftp sftpChannel = null; UserInfo userInfo = null; int TRY_ESTABLISH_CONNECTION = 10; String hosts_FileName = null; try { jsch = new JSch(); jsch.setKnownHosts("C:\\.ssh\\known_hosts"); com.jcraft.jsch.Logger l = new myLogger(); JSch.setLogger(l); session = jsch.getSession("***", "***", 22); userInfo = new MyUserInfo(); session.setUserInfo(userInfo); jsch.addIdentity("***", "***"); session.connect(); sftpChannel = (ChannelSftp)session.openChannel("sftp"); sftpChannel.connect(); sftpChannel.disconnect(); } catch (Exception e) { e.printStackTrace(); } Detailed logging: 1 Connecting to 9.184.166.194 port 22 1 Connection established 1 Remote version string: SSH-2.0-WeOnlyDo 2.1.3 1 Local version string: SSH-2.0-JSCH-0.1.42 1 CheckCiphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256 1 aes256-ctr is not available. 1 aes192-ctr is not available. 1 aes256-cbc is not available. 1 aes192-cbc is not available. 1 arcfour256 is not available. 1 SSH_MSG_KEXINIT sent 1 SSH_MSG_KEXINIT received 1 kex: server->client aes128-cbc hmac-md5 none 1 kex: client->server aes128-cbc hmac-md5 none 1 SSH_MSG_KEXDH_INIT sent 1 expecting SSH_MSG_KEXDH_REPLY 1 ssh_rsa_verify: signature true 1 Host '9.184.166.194' is known and mathces the RSA host key 1 SSH_MSG_NEWKEYS sent 1 SSH_MSG_NEWKEYS received 1 SSH_MSG_SERVICE_REQUEST sent 1 SSH_MSG_SERVICE_ACCEPT received 1 Authentications that can continue: publickey,keyboard-interactive,password 1 Next authentication method: publickey 1 Authentications that can continue: password 1 Next authentication method: password 1 Disconnecting from 9.184.166.194 port 22 com.jcraft.jsch.JSchException: Auth cancel at com.jcraft.jsch.Session.connect(Session.java:451) at com.jcraft.jsch.Session.connect(Session.java:150) at com.ibm.j2ca.sftp.SimpleSFTP.main(SimpleSFTP.java:39) Regards Pushkar |
From: <ym...@jc...> - 2012-06-26 07:57:59
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Hi, +-From: Pushkar K Mishra <pus...@in...> -- |_Date: Mon, 25 Jun 2012 14:08:43 +0530 _______________ | |I am trying to connect from a stand alone SFTP client using jsch |0.1.36 to an SFTP server and getting exceptions: |The key pair were created by some one else and it uses a passphrase. JSch does not support the private key generated by Putty. Is it in OpenSSH format(PEM)? If so, it may be worth trying the latest jsch version. The ssh-keygen from OpenSSH had changed its output suddenly[1], and JSch had handled such a change since 0.1.44. [1] https://bugzilla.mindrot.org/show_bug.cgi?id=1550 Sincerely, -- Atsuhiko Yamanaka JCraft,Inc. 1-14-20 HONCHO AOBA-KU, SENDAI, MIYAGI 980-0014 Japan. Tel +81-22-723-2150 Skype callto://jcraft/ Twitter: http://twitter.com/ymnk Facebook: http://facebook.com/aymnk |