SFTP connection using Trusted host (SHA1 Fingerprint)

[mayank...@gmail.com]

Hi All,

I use a WS_FTP client to connect to a SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.1 Cloud Server. Files are manually downloaded and uploaded to and from the server using the client.

Now, I have a task at hand to automate this process using JAVA for maintainability purposes. Following are the issues faced by me:

1. There is no help/support available from Server administrators.

2. No documentation available.

3. Totally new to the domain of FTP, SFTP etc.

4. All I have is a client which I use to download/upload files. [Connection log below: Establishing a connection]

-----------------------------------------------------------

DSS Signature Verified

Session Keys Created

Ciphers Created

New Client->Server ciphers in place.

New Client->Server ciphers in place.

Completed SSH Key Exchange. New Keys in place.

Trying authentication method: "password"

User Authenticated OK!

--------------------------------------------------------

Attached is the screen of client configuration. 

I am able to export this "Trusted host" file as a public key file.

I need suggestions on which Open source API I can use and also how to establish this connection. I tried using "JSCH" API with having disabled "Stricthostkeychecking" which did not work for me and gave me "Algorithm negotiation failed" exception.

I want to replicate the connection in the same way as my WS_FTP client is connecting.

Thanks in advance....