How to login without password using com.enterprisedt.net.ftp.ssh.SSHFTPClient ?

Question

I need to connect with the sftp host without password. For that I have passed null as password and "" empty string as password. In both case i got below exception. But using putty I am able to connect with SFTP host without password . Kindly guide me connect with SFTP.

public void login(String hostName, int port, String userName, String password)
  throws Exception
{
  try {
    SSHFTPClient m_SFTP = new SSHFTPClient();
    m_SFTP.setRemoteHost(hostName);
    m_SFTP.setRemotePort(port);
    m_SFTP.setAuthentication(userName, null);
    
    System.out.println("Turning off server validation");
    m_SFTP.getValidator().setHostValidationEnabled(false);
    m_SFTP.connect();
    System.out.println("FTPProcessHandlerSFTFact login  :'" + m_SFTP.connected() +"'");
  } catch (Exception e) {
    setReply("4", e.getMessage());
    throw e;
  }       
}

Exception : 

com.enterprisedt.net.ftp.ssh.SSHFTPException: Could not authenticate SSH client: FAILED
	at com.enterprisedt.net.ftp.ssh.SCPClient.connectSSH(SCPClient.java:1152) ~[edtftpj-pro.jar:na]
	at com.enterprisedt.net.ftp.ssh.SSHFTPClient.connect(SSHFTPClient.java:920) ~[edtftpj-pro.jar:na]

Comments

I think you forgot to include the exception that you got.  Can you please add it?

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I updated my post with exception. Please review .

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I just tried using the empty string for a user with no password and it worked fine.

Answer 1

We have tried setting the empty string for the password and it works fine. Make sure you are using the latest version though.

Comments

How to get latest version. Please share link.

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For the latest version you'll need to login to our customer support site, see https://connect.enterprisedt.com.  You should have a username, and you can reset your password if you don't have it.

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I facing same issue even after using version 7.1.0. Please suggest what we need to do for login into sftp server with empty password ("").