Re: use and docs for mertwist.c ?

[Matt Thomas <matt%3am-software.com@localhost>]

On Jul 25, 2008, at 8:49 AM, Jeremy C. Reed wrote:

> On Fri, 25 Jul 2008, Matthias Drochner wrote:
>
> > reed%reedmedia.net@localhost said:
> > > I am testing it as a replacement for arc4random to compare CPU  
> > > usage.
> >
> > I'm noy a cryptography expert. Barely able to initiate a google
> > search -- it yields that the M.T. is not considered suitable for
> > cryptographic purposes.
> > So if our version is modified, or there are other reasons which
> > make it suitable as arc4random() replacement, it should
> > be documented, to appease such concerns.
>
> Sorry, I didn't mean to imply that I was going to replace arc4random 
> (3) in
> NetBSD. I just was going to replace it for a specific use in my own  
> code
> for some tests.
>
> I still don't understand why src/sys/lib/libkern/mertwist.c is our  
> code
> and why it is built. Does anything/anyone actually use it?

It's on my todo list to make the ip_id shuffle code it.  And that would
mean the still-be-done random port-suffler too.