Jsch is a pure Java for implementing SSH2 and relies on JAVATM encryption Extensions (JCE). It can connect to a sshd server, and then use port forwarding, X11 forwarding, file transfer, and so on. Http://www.aliyun.com/zixun/aggregation/18736.html "> Allows users to integrate all the features of Jsch into their own Java programs.
About SSH2
SSH provides support for secure remote logins, file security transfers, secure TCP/IP, and X11 forwarding. It can automatically encrypt, authenticate, and compress the transmitted data. The SSH protocol includes two incompatible categories: SSH1 and SSH2. SSH2 is to avoid patent issues about RSA and to fix SSH1 some data integrity issues.
Jsch 0.1.48 This version improves sftp file download speed.
Software Information: http://www.jcraft.com/jsch/
Download Address: Http://sourceforge.net/projects/jsch/files/jsch/0.1.48/jsch-0.1.48.zip/download