[cups.general] Will cups support "secure print jobs" in general?

[uli wehner]

Hmm,

let me just add a couple of lines to the whole encrypted printing thing.

Some printers (Lanier LP235c, LD151/160/175 and newer) support printing encrypted. this is the part between the CUPS server and the actual printer. (this would be the important part).

Device URI: http://printerhostname:443/printer will print encrypted.

Using a CUPS print server all printdata passing through this CUPS server would be encrypted between server and printer.

Note: i have not been able to use ipp:// or ipps:// but that might just be me...

Regards
Uli Wehner
Solutions Engineer
Lanier Worldwide, Inc




> S Clark wrote:
> > I was under the impression that the SSL support was only for the
> > admin interface, not for the print jobs themselves. I've not been
>
> Not at all, any HTTP/IPP request can be encrypted.
>
> > able to get IPP-over-SSL print jobs ("ipps"?) working at all at this
>
> No, there is no "ipps" scheme defined, as the IETF didn't allow us
> to define a separate scheme and port for encrypted traffic...
>
> > point, though it's admittedly been a while since I tried.  Are there
> > any pointers to documentation on getting this to work floating
> > around?  The CUPS documentation appears only to mention the
> > configuration options (the keys, the "SSLListen" directive, etc.) but
> > doesn't seem to describe how to actually get print jobs to go over
> > the channel.  Should just setting up the SSL keys and pointing the
> > client at the SSL port rather than the unencrypted port be all that
> > is require to get this working?
>
> "man lp"
>
> Most commands accept a "-E" option to force encryption of a request.
>
> > (Or perhaps I'm looking at the wrong end of the equation - do none of
> > the more common printing clients support SSL print jobs?  e.g.
> > Microsoft's presumably limited IPP support?)
>  > ...
>
> I *think* you can use https: for IPP printing on Windows, however
> they don't support the HTTP Upgrade protocol needed to do TLS
> encryption, so you can't optionally use encryption for some jobs
> or requests and not others.
>
> --
> ______________________________________________________________________
> Michael Sweet, Easy Software Products           mike at easysw dot com
> Internet Printing and Publishing Software        http://www.easysw.com