What is cryptosoft0?

Sam Leffler sam at freebsd.org
Thu Aug 7 00:40:55 UTC 2008

Ulrich Spoerlein wrote:
> Hi,
> today I discovered the following dmesg line on my laptop:
> cryptosoft0: <software crypto> on motherboard
> and I've not seen this one before, so: what is cryptosoft and should I
> care?
> I could imagine it's a pseudo-device by crypto(9) so the API is the same
> whether crypto hardware is installed or not.
> Anyway, I think a manpage link/update would be in order:
> % man -k cryptosoft
> cryptosoft: nothing appropriate

It is what you suggest; a device associated with s/w crypto support.  It 
was created so crypto requests can be submitted specifically to it 
(instead of a h/w device).  This is currently used only for testing but 
the intent was also to use it when doing load-balancing and similar work.


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