Enhance sftp protocol: get SHA hash of file

Thomas Güttler guettli at thomas-guettler.de
Wed Jun 29 21:57:55 EST 2011

Am 29.06.2011 13:04, schrieb Philipp Marek:
> On Wednesday 29 June 2011, Thomas Güttler wrote:
>> This would make it possible to run a rsync like file transfer
>> on sftp.
> Well, this would work for append-only files; if bytes get inserted or 
> deleted in the middle, you'd need a Manber-Hash like rsync uses.

Hi Phil,

I tried to find more info about "Manber-Hash". You are the author
of this perl module?

Unfortunately the link on this page is broken:


This page does not exist any more:

My intention for the hash values enhancement for sftp is a deduplication
backup system. I would cut files into chunks with a fixed offset.


More information about the openssh-unix-dev mailing list