[JSch-users] Timeout error with HMAC-SHA1-96 and HMAC-MD5-96

[Viet H. P. <hoa...@ya...>]

Hi All,

I used jsch-0.1.43 to do transfer files with some SFTP servers. Everything worked well for me when I set HMAC-SHA1 or HMAC-MD5 as mac.s2c and mac.c2s. But when I used HMAC-SHA1-96 or HMAC-MD5-96, I kept getting timeout errors.

With OpenSSH 5.6, I got the following error:

com.jcraft.jsch.JSchException: Session.connect: java.net.SocketTimeoutException: Read timed out
at com.jcraft.jsch.Session.connect(Session.java:504)
at com.jcraft.jsch.Session.connect(Session.java:154


With Bitvise WinSSHD 5.29, I got the following error:

com.jcraft.jsch.JSchException: SSH_MSG_DISCONNECT: 11 WinsshdLoginTimeout: user authentication timeout
at com.jcraft.jsch.Session.read(Session.java:899)
at com.jcraft.jsch.UserAuthNone.start(UserAuthNone.java:56)
at com.jcraft.jsch.Session.connect(Session.java:350)
at com.jcraft.jsch.Session.connect(Session.java:154


Could anyone tell me if I missed anything our there was some issue in the HMAC-SHA1-96 and HMAC-MD5-96 implementation?

Thanks,
Viet