Re: Confiscation of Anti-War Video

2002-10-31 Thread John Kelsey
At 12:01 PM 10/28/02 -0800, Tim May wrote:

...
By the way, there are perfectly good fixes to the current hysteria 
about things carried on board planes. Besides the obvious absurdity of 
issuing alarms when fingernail clippers are found (but ignoring razor 
sharp edges in things like laptops with metal cases!), there are many 
fixes which can be applied:

I think the best fix is to accept that a determined suicidal attacker will
probably manage to bring down the plane, but make sure that's the worst he
can do.  That removes the externality problem.  The current algorithm for
this is some combination of pilots being told not to go along with
hijackers' demands, and maybe some chance of getting a military jet in
place to shoot the hijacked plane down, if it is taken over by the
hijackers.  (It seems like this wouldn't be practical most of the time,
e.g., if someone takes over the plane as it's approaching landing, there
probably wouldn't be anyone in place to shoot in time.  And faster response
time means less time to discover a mistake.)  

I've heard of an idea for a mechanism for putting some kind of
remote-control piloting mechanism on the plane, so that it can be taken
over from the ground.  This adds new attack points, but it might be
workable.  And of course, rockets have long had self-destruct mechanisms;
presumably, there's stuff off the shelf from NASA or the DoD that does this
with some reasonable level of security.  (This last one would be
politically unacceptable, but it's not really all that different from
having a fighter shoot the hijacked plane down.)   Both of these introduce
a bunch of new vulnerabilities, though.  

Your list left out the obvious technique, which I think is more-or-less
used by El Al:  Screen your passengers really well, probably using secret
databases, various kinds of racial profiling, etc.  Routinely turn
passengers away, or make boarding the plane such an ordeal that they elect
not to fly anymore.  (One of the many problems with this is that most
flights are within the US; make flying sufficiently nasty, and people will
take trains, busses, or their own cars.  I think this is already happening
a great deal, which is one reason most airlines are doing so poorly.)  

...
4. Finally, market solutions are usually best. Any of the above could 
be implemented. If customers feel safer with a different baggage 
policy, they'll pick it. 
...

I can't imagine this being done in practice, but I wish it were.  The
problem *is* an externality, but not the one you pointed out.  Politicians
in office right now will be blamed if there's another hijacking.  So if I
choose to fly Allahu Akbar Airlines for the short security checking lines,
I get the benefit, but part of the cost lands on incumbent congressmen and
the President.  And those incumbents, unlike most people who get stuck with
such costs, have the power to do something about it.  (Something pretty
similar happens with the FDA, right?  If you get the new cancer drug a year
earlier, you get all the benefit (maybe you get to go on living); the FDA
gets the added risk of their being some horrible side effect.  So they
force a different trade-off on you than you'd prefer.)  

--Tim May
 --John Kelsey, [EMAIL PROTECTED] // [EMAIL PROTECTED]




ISP Utilty To Cypherpunks?

2002-10-31 Thread David E. Weekly
Cypherpunks,

I run a 501(c)(3) non-profit focuses on providing free, donation-based
colocation to individuals and other non-profits (i.e., no companies are
hosted. Additionally, we try to do things that are useful to the
not-for-profit Internet community as a whole; for instance, we run a
freenode.info IRC server (freenode is used by a lot of Open Source
development groups to coordinate developer teams).

I'd like to understand how we could be useful to the cypherpunk community.
I've got some wild guesses (run a public keyserver, run a mixmaster node,
etc), but I don't really know what is most badly needed, or how we could
provide the most bang for the bandwidth buck. (We do pay for bandwidth, so
serving up Debian ISOs is not a viable way we can help the community at
this time.) Ideally, we'd like to find applications that don't use a lot of
bandwidth (500kbps aggregate), but require a server that's got a fixed IP,
is up all the time, and has very low latency to most of the Net.

How can we help?

 David E. Weekly
 Founder  Director
 California Community Colocation Project
 http://CommunityColo.net/


PS: We are entirely volunteer-based. Nobody gets paid.




patents

2002-10-31 Thread R. A. Hettinga
--- begin forwarded text


Status: RO
Date: Thu, 31 Oct 2002 15:02:42 -0500
To: [EMAIL PROTECTED]
From: Somebody who actually *knows* about this...
Subject: patents

Bob,

What's all the confusion about the Digicash-Chaum patents? They are now all
owned by Infospace. The important one expires mid-2005, which is pretty soon.

The ec-logix stuff looks like nonsense. They display bitmaps of the old
Digicash wallet GUI, and I expect they will be hearing from Infospace.

Somebody's .sig

--- end forwarded text


-- 
-
R. A. Hettinga mailto: [EMAIL PROTECTED]
The Internet Bearer Underwriting Corporation http://www.ibuc.com/
44 Farquhar Street, Boston, MA 02131 USA
... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience. -- Edward Gibbon, 'Decline and Fall of the Roman Empire'




Re: Confiscation of Anti-War Video

2002-10-31 Thread Bill Frantz
At 1:52 PM -0800 10/31/02, Steve Schear wrote:
At 11:37 AM 10/31/2002 -0800, you wrote:
Another fix that is being used is passengers who will act to keep the
plane from being used as a weapon.  If the hijackers have to kill people
with small sharp objects that they can smuggle on board, instead of mass
killing devices like machine guns, then a large number of passengers can
overcome a small number of hijackers.

This assumption may not be a good one.  Considering the level of current
security checks, it should be trivial to smuggle some sort of anesthetic or
poisonous gas generator aboard.  No need for sharp objects.  AFAIK, the air
supply aboard current U.S. fleets is shared between passengers and cockpit.

IIRC, the regs call for pilots to either wear oxygen masks, or have quick
to put on masks readily at hand.

Cheers - Bill


-
Bill Frantz   | The principal effect of| Periwinkle -- Consulting
(408)356-8506 | DMCA/SDMI is to prevent| 16345 Englewood Ave.
[EMAIL PROTECTED] | fair use.  | Los Gatos, CA 95032, USA




Re: Confiscation of Anti-War Video

2002-10-31 Thread Steve Schear
At 04:28 PM 10/31/2002 -0800, Bill Frantz wrote:

At 1:52 PM -0800 10/31/02, Steve Schear wrote:
At 11:37 AM 10/31/2002 -0800, you wrote:
Another fix that is being used is passengers who will act to keep the
plane from being used as a weapon.  If the hijackers have to kill people
with small sharp objects that they can smuggle on board, instead of mass
killing devices like machine guns, then a large number of passengers can
overcome a small number of hijackers.

This assumption may not be a good one.  Considering the level of current
security checks, it should be trivial to smuggle some sort of anesthetic or
poisonous gas generator aboard.  No need for sharp objects.  AFAIK, the air
supply aboard current U.S. fleets is shared between passengers and cockpit.

IIRC, the regs call for pilots to either wear oxygen masks, or have quick
to put on masks readily at hand.


Unfortunately, there are many gasses which kill or disable with only a 
small dosage (e.g., VX).  Unless the cabins are equipped with toxic air 
sensors (possible in a few years with all the biochip work underway) I 
think the masks may be be too little too late.

steve