From: Jonathan Gray <jsg@jsg.id.au>
Subject: Re: mention M-209 in crypt(3) history
To: tech@openbsd.org
Date: Thu, 9 Jan 2025 18:55:07 +1100

On Thu, Jan 09, 2025 at 07:13:04AM +0000, Jason McIntyre wrote:
> On Thu, Jan 09, 2025 at 03:07:31PM +1100, Jonathan Gray wrote:
> > When describing v3 crypt, be specific as to which rotor machine.
> > 
> > "Crypt is an exact implementation of Boris Hagelin's cryptographic
> > machine called the M-209 by the U. S. Army"
> > From the third edition manual, crypt(I).
> > 
> > Index: lib/libc/crypt/crypt.3
> > ===================================================================
> > RCS file: /cvs/src/lib/libc/crypt/crypt.3,v
> > diff -u -p -r1.45 crypt.3
> > --- lib/libc/crypt/crypt.3	6 Apr 2015 20:49:41 -0000	1.45
> > +++ lib/libc/crypt/crypt.3	9 Jan 2025 02:58:47 -0000
> > @@ -125,7 +125,7 @@ on failure.
> >  .Xr getpass 3 ,
> >  .Xr passwd 5
> >  .Sh HISTORY
> > -A rotor-based
> > +A M-209 based
> >  .Fn crypt
> >  function appeared in
> >  .At v3 .
> > 
> 
> hi. i think that should be "An M-209", supposing that it's read
> "em-209".

well spotted

Index: lib/libc/crypt/crypt.3
===================================================================
RCS file: /cvs/src/lib/libc/crypt/crypt.3,v
diff -u -p -r1.45 crypt.3
--- lib/libc/crypt/crypt.3	6 Apr 2015 20:49:41 -0000	1.45
+++ lib/libc/crypt/crypt.3	9 Jan 2025 07:46:07 -0000
@@ -125,7 +125,7 @@ on failure.
 .Xr getpass 3 ,
 .Xr passwd 5
 .Sh HISTORY
-A rotor-based
+An M-209 based
 .Fn crypt
 function appeared in
 .At v3 .