Driver to drive?

Nobody with a modicum of "authority" gives a shit, and the FCC has
opted out ages ago.
The so-called "do not call" list is a major joke; one gets MORE calls
if you try it,and changing phone number is of no help unless you want
to change it every week.

we should put the NSA to work going after the do not call list violators.


Marl
 
<meow2222@care2.com> wrote in message
news:5ef252e5-46bb-40b2-b3f1-f371451ec151@googlegroups.com...
On Thursday, April 2, 2015 at 6:58:55 PM UTC+1, Pimpom wrote:
modernscience@UWSD.edu> wrote in message
news:hfnoha5postb856kb517omt6tr65bvasj1@4ax.com...

From: The World of Science
Article 4115
Posted: April 1, 2015

The world is running out of electrons. Electric costs soar,

It's been scientifically proven beyond all reasonable doubt
that
consumption of electrons is the primary factor in AGW. As we
use
up electrons faster than they can be replenished, the
remaining
electrons are working harder than ever to make up for the
decline
in their numbers.

They spin faster and faster and thus generate
more and more heat.

sounds like politicians

Yep. A further parallel: Both also spew out more and more noise.

I hear that President Obama, in a frantic effort to conserve
electrons, will soon inroduce a bill to limit the use of
cellphones to three 15-second calls per phone per day. Good luck,
USans.
 
On Fri, 3 Apr 2015 01:10:27 +0530, "Pimpom" <pimpom@invalid.invalid>
wrote:

meow2222@care2.com> wrote in message
news:5ef252e5-46bb-40b2-b3f1-f371451ec151@googlegroups.com...
On Thursday, April 2, 2015 at 6:58:55 PM UTC+1, Pimpom wrote:
modernscience@UWSD.edu> wrote in message
news:hfnoha5postb856kb517omt6tr65bvasj1@4ax.com...

From: The World of Science
Article 4115
Posted: April 1, 2015

The world is running out of electrons. Electric costs soar,

It's been scientifically proven beyond all reasonable doubt
that
consumption of electrons is the primary factor in AGW. As we
use
up electrons faster than they can be replenished, the
remaining
electrons are working harder than ever to make up for the
decline
in their numbers.

They spin faster and faster and thus generate
more and more heat.

sounds like politicians

Yep. A further parallel: Both also spew out more and more noise.

I hear that President Obama, in a frantic effort to conserve
electrons, will soon inroduce a bill to limit the use of
cellphones to three 15-second calls per phone per day. Good luck,
USans.

And he flies himself, and his wife, to Hawaii on separate planes, on
the same day.


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
 
On Thursday, April 2, 2015 at 6:48:11 PM UTC-7, k...@zzz.com wrote:
On Thu, 02 Apr 2015 17:14:16 -0700, John Larkin
jlarkin@highlandtechnology.com> wrote:

On Thu, 02 Apr 2015 19:38:31 -0400, krw@zzz.com wrote:

On Thu, 02 Apr 2015 12:52:43 -0700, John Larkin
jlarkin@highlandtechnology.com> wrote:

On Fri, 3 Apr 2015 01:10:27 +0530, "Pimpom" <pimpom@invalid.invalid
wrote:


meow2222@care2.com> wrote in message
news:5ef252e5-46bb-40b2-b3f1-f371451ec151@googlegroups.com...
On Thursday, April 2, 2015 at 6:58:55 PM UTC+1, Pimpom wrote:
modernscience@UWSD.edu> wrote in message
news:hfnoha5postb856kb517omt6tr65bvasj1@4ax.com...

From: The World of Science
Article 4115
Posted: April 1, 2015

The world is running out of electrons. Electric costs soar,

It's been scientifically proven beyond all reasonable doubt
that
consumption of electrons is the primary factor in AGW. As we
use
up electrons faster than they can be replenished, the
remaining
electrons are working harder than ever to make up for the
decline
in their numbers.

They spin faster and faster and thus generate
more and more heat.

sounds like politicians

Yep. A further parallel: Both also spew out more and more noise.

I hear that President Obama, in a frantic effort to conserve
electrons, will soon inroduce a bill to limit the use of
cellphones to three 15-second calls per phone per day. Good luck,
USans.


And he flies himself, and his wife, to Hawaii on separate planes, on
the same day.

Well, would you want to spend half a day with her, cooped up in a tiny
plane like that?

It's a 747, but that's still too small.

Exactly.

Oh, the Air Force is going to buy a new fleet of Air Force One planes,
for way over $3B. The new Marine Corps One presidential helicopters
will cost over $2B. That doesn't include greens fees.

That's just for the fuel for four years.

Thank God Jeb Bush is our next President.
Four More Beers.
 
On Thu, 02 Apr 2015 12:52:43 -0700, John Larkin
<jlarkin@highlandtechnology.com> wrote:

On Fri, 3 Apr 2015 01:10:27 +0530, "Pimpom" <pimpom@invalid.invalid
wrote:


meow2222@care2.com> wrote in message
news:5ef252e5-46bb-40b2-b3f1-f371451ec151@googlegroups.com...
On Thursday, April 2, 2015 at 6:58:55 PM UTC+1, Pimpom wrote:
modernscience@UWSD.edu> wrote in message
news:hfnoha5postb856kb517omt6tr65bvasj1@4ax.com...

From: The World of Science
Article 4115
Posted: April 1, 2015

The world is running out of electrons. Electric costs soar,

It's been scientifically proven beyond all reasonable doubt
that
consumption of electrons is the primary factor in AGW. As we
use
up electrons faster than they can be replenished, the
remaining
electrons are working harder than ever to make up for the
decline
in their numbers.

They spin faster and faster and thus generate
more and more heat.

sounds like politicians

Yep. A further parallel: Both also spew out more and more noise.

I hear that President Obama, in a frantic effort to conserve
electrons, will soon inroduce a bill to limit the use of
cellphones to three 15-second calls per phone per day. Good luck,
USans.


And he flies himself, and his wife, to Hawaii on separate planes, on
the same day.

Well, would you want to spend half a day with her, cooped up in a tiny
plane like that?
 
On Thu, 02 Apr 2015 19:38:31 -0400, krw@zzz.com wrote:

On Thu, 02 Apr 2015 12:52:43 -0700, John Larkin
jlarkin@highlandtechnology.com> wrote:

On Fri, 3 Apr 2015 01:10:27 +0530, "Pimpom" <pimpom@invalid.invalid
wrote:


meow2222@care2.com> wrote in message
news:5ef252e5-46bb-40b2-b3f1-f371451ec151@googlegroups.com...
On Thursday, April 2, 2015 at 6:58:55 PM UTC+1, Pimpom wrote:
modernscience@UWSD.edu> wrote in message
news:hfnoha5postb856kb517omt6tr65bvasj1@4ax.com...

From: The World of Science
Article 4115
Posted: April 1, 2015

The world is running out of electrons. Electric costs soar,

It's been scientifically proven beyond all reasonable doubt
that
consumption of electrons is the primary factor in AGW. As we
use
up electrons faster than they can be replenished, the
remaining
electrons are working harder than ever to make up for the
decline
in their numbers.

They spin faster and faster and thus generate
more and more heat.

sounds like politicians

Yep. A further parallel: Both also spew out more and more noise.

I hear that President Obama, in a frantic effort to conserve
electrons, will soon inroduce a bill to limit the use of
cellphones to three 15-second calls per phone per day. Good luck,
USans.


And he flies himself, and his wife, to Hawaii on separate planes, on
the same day.

Well, would you want to spend half a day with her, cooped up in a tiny
plane like that?

It's a 747, but that's still too small.

Oh, the Air Force is going to buy a new fleet of Air Force One planes,
for way over $3B. The new Marine Corps One presidential helicopters
will cost over $2B. That doesn't include greens fees.




--

John Larkin Highland Technology, Inc
picosecond timing laser drivers and controllers

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
 
On Thu, 02 Apr 2015 17:14:16 -0700, John Larkin
<jlarkin@highlandtechnology.com> wrote:

On Thu, 02 Apr 2015 19:38:31 -0400, krw@zzz.com wrote:

On Thu, 02 Apr 2015 12:52:43 -0700, John Larkin
jlarkin@highlandtechnology.com> wrote:

On Fri, 3 Apr 2015 01:10:27 +0530, "Pimpom" <pimpom@invalid.invalid
wrote:


meow2222@care2.com> wrote in message
news:5ef252e5-46bb-40b2-b3f1-f371451ec151@googlegroups.com...
On Thursday, April 2, 2015 at 6:58:55 PM UTC+1, Pimpom wrote:
modernscience@UWSD.edu> wrote in message
news:hfnoha5postb856kb517omt6tr65bvasj1@4ax.com...

From: The World of Science
Article 4115
Posted: April 1, 2015

The world is running out of electrons. Electric costs soar,

It's been scientifically proven beyond all reasonable doubt
that
consumption of electrons is the primary factor in AGW. As we
use
up electrons faster than they can be replenished, the
remaining
electrons are working harder than ever to make up for the
decline
in their numbers.

They spin faster and faster and thus generate
more and more heat.

sounds like politicians

Yep. A further parallel: Both also spew out more and more noise.

I hear that President Obama, in a frantic effort to conserve
electrons, will soon inroduce a bill to limit the use of
cellphones to three 15-second calls per phone per day. Good luck,
USans.


And he flies himself, and his wife, to Hawaii on separate planes, on
the same day.

Well, would you want to spend half a day with her, cooped up in a tiny
plane like that?

It's a 747, but that's still too small.

Exactly.

Oh, the Air Force is going to buy a new fleet of Air Force One planes,
for way over $3B. The new Marine Corps One presidential helicopters
will cost over $2B. That doesn't include greens fees.

That's just for the fuel for four years.
 
bill ashford <billa!x@top.com> wrote:

Enough is enough. My wife is getting upwards of 10 calls daily where no
one is on the line when she answers. We have caller ID and it shows
numbers never heard of before. For about 4 years, we've both put up
with it but over the last couple of years, the calls have increased.
I'd like to add a phone call block if I can find the right kind. ...

By the beginning of this week, the situation was becoming impossible,
with silent calls interrupting my work several times a day and scams of
every sort during the evenings. I daren't risk losing any of my genuine
'phone calls by relying on an answering machine (bad for business), so I
decided to report every single unwanted call as soon as possible after
it happened.

In the U.K., reporting starts with the Information Commissioner's Office
website, which then sorts out which type of nuisance call needs to be
directed to which authority (there are loads of different categories).
I went through this procedure for three days, giving the same
information time after time.

Suddenly all the calls have stopped - every single one of them. I have
had two wonderful spam-free days.. I suppose it could be coincidence,
but that is stretching things a bit far.

Could someone else in the U.K. try the same thing and let us know if it
works for them?


--
~ Adrian Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
 
On Thu, 2 Apr 2015 20:26:16 -0700 (PDT), rev.11d.meow@gmail.com wrote:

On Thursday, April 2, 2015 at 6:48:11 PM UTC-7, k...@zzz.com wrote:
On Thu, 02 Apr 2015 17:14:16 -0700, John Larkin
jlarkin@highlandtechnology.com> wrote:

On Thu, 02 Apr 2015 19:38:31 -0400, krw@zzz.com wrote:

On Thu, 02 Apr 2015 12:52:43 -0700, John Larkin
jlarkin@highlandtechnology.com> wrote:

On Fri, 3 Apr 2015 01:10:27 +0530, "Pimpom" <pimpom@invalid.invalid
wrote:


meow2222@care2.com> wrote in message
news:5ef252e5-46bb-40b2-b3f1-f371451ec151@googlegroups.com...
On Thursday, April 2, 2015 at 6:58:55 PM UTC+1, Pimpom wrote:
modernscience@UWSD.edu> wrote in message
news:hfnoha5postb856kb517omt6tr65bvasj1@4ax.com...

From: The World of Science
Article 4115
Posted: April 1, 2015

The world is running out of electrons. Electric costs soar,

It's been scientifically proven beyond all reasonable doubt
that
consumption of electrons is the primary factor in AGW. As we
use
up electrons faster than they can be replenished, the
remaining
electrons are working harder than ever to make up for the
decline
in their numbers.

They spin faster and faster and thus generate
more and more heat.

sounds like politicians

Yep. A further parallel: Both also spew out more and more noise.

I hear that President Obama, in a frantic effort to conserve
electrons, will soon inroduce a bill to limit the use of
cellphones to three 15-second calls per phone per day. Good luck,
USans.


And he flies himself, and his wife, to Hawaii on separate planes, on
the same day.

Well, would you want to spend half a day with her, cooped up in a tiny
plane like that?

It's a 747, but that's still too small.

Exactly.

Oh, the Air Force is going to buy a new fleet of Air Force One planes,
for way over $3B. The new Marine Corps One presidential helicopters
will cost over $2B. That doesn't include greens fees.

That's just for the fuel for four years.

Thank God Jeb Bush is our next President.

You're wrong, as lefties always are.

>Four More Beers.

No thanks. Don't drink. ...your lefty KoolAid, either.
 
On Sun, 29 Mar 2015 08:12:53 -0400, bill ashford <billa!x@top.com>
wrote:

Enough is enough. My wife is getting upwards of 10 calls daily where no
one is on the line when she answers. We have caller ID and it shows
numbers never heard of before. For about 4 years, we've both put up
with it but over the last couple of years, the calls have increased.
I'd like to add a phone call block if I can find the right kind. I see
many around the web for sale, but most of these have so-so reviews and
either end up not blocking enough numbers, or cutting off to many. Then
there is a tele device where a caller has to press 1 to reach the person
being called-- I like this, pretty foolproof, but the pricetag seems a
bit high at over $100. We have Verizon but nothing special. I just use
DSL on copper and all wired phones. So whatever is used will have to
work with this existing system. Anyone have ideas? Are there any
number pressing devices cheaper than $100?

Thanks-- bill

I originally had JF Teck "Caller ID With Ring Controller". That
device mutes the first ring while it reads the caller-ID, then allows
or mutes any further rings if the offending number is found in memory.
It has also has white-listing capability, which I never used.

The problem is that muting that first ring prevents the house phones
from reading the caller-ID themselves.

You may remember a thread of mine from several years ago where I added
my own box such that ring voltage was sent to the phones, but the
phones had their ringers turned-off, thus "quietly" reading the
caller-ID, my box then sent a ring signal on a separate pair to a
local ringer.

Now I'm VOIP with Ooma, who subscribe to the Nomorobo listing, plus I
personally block all 800 numbers... the silence is golden ;-)

For my cell phone I add spammers to my contact list, Zpam-1, etc., but
set them to no-ring. It's rare that a spammer waits 9 rings to
intrude on my voicemail >:-}

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
 
On 17/04/2015 2:18 AM, Clocky wrote:
http://tinyurl.com/q4wgo8w

Interesting...

Added sci.electronics.design

"Danev said his company was in talks with several car manufacturers to
install a chip that can tell how far the key is from the car, thereby
defeating the power-amplifier trick."

We don't have details, but I'm a little sceptical that this would be the
solution it appears to be. While it's easy enough to send out a signal
and measure the response time, thus determining the distance, it's not
so easy to ensure that the responding device is the key fob.

Normally, the fob proves its identity by sending a code to the car. As
is apparent, this doesn't prevent the signal from being relayed. To
ensure that there's no relay, it would be necessary to measure the
response time of the entire code. The problem here is that it's not know
to any degree of accuracy what that should be - there's some variation
in the frequency used by the fob.

Measuring the time to the first edge of the response is no good - it may
be inserted by the relay device, with only subsequent edges being
relayed from the fob.

Perhaps the whole keyless entry concept is fundamentally flawed.

Sylvia.
 
On 4/17/2015 12:36 AM, Sylvia Else wrote:
On 17/04/2015 2:18 AM, Clocky wrote:
http://tinyurl.com/q4wgo8w

Interesting...

Added sci.electronics.design

"Danev said his company was in talks with several car manufacturers to
install a chip that can tell how far the key is from the car, thereby
defeating the power-amplifier trick."

We don't have details, but I'm a little sceptical that this would be the
solution it appears to be. While it's easy enough to send out a signal
and measure the response time, thus determining the distance, it's not
so easy to ensure that the responding device is the key fob.

Normally, the fob proves its identity by sending a code to the car. As
is apparent, this doesn't prevent the signal from being relayed. To
ensure that there's no relay, it would be necessary to measure the
response time of the entire code. The problem here is that it's not know
to any degree of accuracy what that should be - there's some variation
in the frequency used by the fob.

Measuring the time to the first edge of the response is no good - it may
be inserted by the relay device, with only subsequent edges being
relayed from the fob.

Perhaps the whole keyless entry concept is fundamentally flawed.

Sylvia.

The whole keyless entry thing is a solution looking for a problem, with
all sorts of unforeseen consequences. It's been a simple matter for
decades to build keys that make it very hard to pick a lock.

Most of us have had a flat battery more times than we've had our car
stolen, by a lot. Keyless systems make that very inconvenient indeed.

And anybody with any computer security nous whatsoever will tell you
that if somebody has physical access to your computer, all your IT
security is useless. Cars are the same way.

Cheers

Phil Hobbs




--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net
 
On 4/17/2015 12:49 AM, Phil Hobbs wrote:
On 4/17/2015 12:36 AM, Sylvia Else wrote:
On 17/04/2015 2:18 AM, Clocky wrote:
http://tinyurl.com/q4wgo8w

Interesting...

Added sci.electronics.design

"Danev said his company was in talks with several car manufacturers to
install a chip that can tell how far the key is from the car, thereby
defeating the power-amplifier trick."

We don't have details, but I'm a little sceptical that this would be the
solution it appears to be. While it's easy enough to send out a signal
and measure the response time, thus determining the distance, it's not
so easy to ensure that the responding device is the key fob.

Normally, the fob proves its identity by sending a code to the car. As
is apparent, this doesn't prevent the signal from being relayed. To
ensure that there's no relay, it would be necessary to measure the
response time of the entire code. The problem here is that it's not know
to any degree of accuracy what that should be - there's some variation
in the frequency used by the fob.

Measuring the time to the first edge of the response is no good - it may
be inserted by the relay device, with only subsequent edges being
relayed from the fob.

Perhaps the whole keyless entry concept is fundamentally flawed.

Sylvia.

The whole keyless entry thing is a solution looking for a problem, with
all sorts of unforeseen consequences. It's been a simple matter for
decades to build keys that make it very hard to pick a lock.

Most of us have had a flat battery more times than we've had our car
stolen, by a lot. Keyless systems make that very inconvenient indeed.

And anybody with any computer security nous whatsoever will tell you
that if somebody has physical access to your computer, all your IT
security is useless. Cars are the same way.

Cities should distribute these amplifiers. Thieves will just break a
window if they can't open the door. These devices will prevent a lot of
broken windows.
 
Sylvia Else wrote:
On 17/04/2015 2:18 AM, Clocky wrote:
http://tinyurl.com/q4wgo8w

Interesting...

Added sci.electronics.design

"Danev said his company was in talks with several car manufacturers to
install a chip that can tell how far the key is from the car, thereby
defeating the power-amplifier trick."

We don't have details, but I'm a little sceptical that this would be the
solution it appears to be. While it's easy enough to send out a signal
and measure the response time, thus determining the distance, it's not
so easy to ensure that the responding device is the key fob.

Normally, the fob proves its identity by sending a code to the car. As
is apparent, this doesn't prevent the signal from being relayed. To
ensure that there's no relay, it would be necessary to measure the
response time of the entire code. The problem here is that it's not know
to any degree of accuracy what that should be - there's some variation
in the frequency used by the fob.

Or is it passive and just get identified by the car like my ignition key?
Measuring the time to the first edge of the response is no good - it may
be inserted by the relay device, with only subsequent edges being
relayed from the fob.

Perhaps the whole keyless entry concept is fundamentally flawed.

Sylvia.
 
On 4/17/2015 12:49 AM, Phil Hobbs wrote:
On 4/17/2015 12:36 AM, Sylvia Else wrote:
On 17/04/2015 2:18 AM, Clocky wrote:
http://tinyurl.com/q4wgo8w

Interesting...

Added sci.electronics.design

"Danev said his company was in talks with several car manufacturers to
install a chip that can tell how far the key is from the car, thereby
defeating the power-amplifier trick."

We don't have details, but I'm a little sceptical that this would be the
solution it appears to be. While it's easy enough to send out a signal
and measure the response time, thus determining the distance, it's not
so easy to ensure that the responding device is the key fob.

Normally, the fob proves its identity by sending a code to the car. As
is apparent, this doesn't prevent the signal from being relayed. To
ensure that there's no relay, it would be necessary to measure the
response time of the entire code. The problem here is that it's not know
to any degree of accuracy what that should be - there's some variation
in the frequency used by the fob.

Measuring the time to the first edge of the response is no good - it may
be inserted by the relay device, with only subsequent edges being
relayed from the fob.

Perhaps the whole keyless entry concept is fundamentally flawed.

Sylvia.

The whole keyless entry thing is a solution looking for a problem, with all
sorts of unforeseen consequences. It's been a simple matter for decades to
build keys that make it very hard to pick a lock.

Then the lock isn't "picked" but, rather, MANGLED by the thief. Auto locks
(doors, windows, etc.) are notoriously poor defenses.

[I had to replace the DOOR lock assembly on one of our vehicles a few months
back. Thankfully, they decided not to pop the column, as well.]

Unlike owners, thieves usually don't care too much about the cosmetic
damage they do to a vehicle that they are stealing.

Most of us have had a flat battery more times than we've had our car stolen, by
a lot. Keyless systems make that very inconvenient indeed.

Most keyless systems have mechanical backups for exactly that reason.
A flat battery may prevent you from *immediately* starting your vehicle
(once you've gained entry), but that can be remedied once you *have*
access.

And anybody with any computer security nous whatsoever will tell you that if
somebody has physical access to your computer, all your IT security is
useless. Cars are the same way.

Locks keep honest people honest. That's about it. I've known people
who've had their cars "towed" away by thiefs ("Hey! Look! That guy's
car is being towed away!" *not* "OMG! Someone is stealing that car!").
ATM machines similarly "burglarized" by forceful removal, etc. Steering
column locks ("The Club") are bypassed by simply cutting a slot in the
steering wheel.

A cousin had the door frame ripped out of her home by thieves as an expedient
to gaining access to her furs and jewelry.

A neighbor had his vehicle stolen *twice* from his driveway.

Many years ago, a thief smashed a window in my car and stole a winter
jacket (WTF?) leaving me to drive home late at night without a jacket
and an "open window".
 
On 17/04/2015 6:38 PM, F Murtz wrote:
Sylvia Else wrote:
On 17/04/2015 2:18 AM, Clocky wrote:
http://tinyurl.com/q4wgo8w

Interesting...

Added sci.electronics.design

"Danev said his company was in talks with several car manufacturers to
install a chip that can tell how far the key is from the car, thereby
defeating the power-amplifier trick."

We don't have details, but I'm a little sceptical that this would be the
solution it appears to be. While it's easy enough to send out a signal
and measure the response time, thus determining the distance, it's not
so easy to ensure that the responding device is the key fob.

Normally, the fob proves its identity by sending a code to the car. As
is apparent, this doesn't prevent the signal from being relayed. To
ensure that there's no relay, it would be necessary to measure the
response time of the entire code. The problem here is that it's not know
to any degree of accuracy what that should be - there's some variation
in the frequency used by the fob.

Or is it passive and just get identified by the car like my ignition key?

It's not really passive. There is still a code transmitted.

Sylvia.
 
On 4/17/2015 2:43 AM, Phil Hobbs wrote:
> Move to a better neighbourhood.

Where you live seems to have little bearing on the matter.

Guy from one of the wealthiest, "upscale" households in town recounted
how his floor safe was stolen from his home. The thief was caught
with *it* (still "locked") in a wheelbarrow trying to get it out through
the "back lots" to avoid the guards at the gated entry!
 
On Fri, 17 Apr 2015 22:37:50 +1000, Sylvia Else did Blather:

One should never suppose a conspiracy when simple incompetence is a
sufficient explanation.

Sylvia.

You're simply full of it tonight...



--
Toby
 
On 17/04/2015 14:36, Sylvia Else wrote:
On 17/04/2015 2:18 AM, Clocky wrote:
http://tinyurl.com/q4wgo8w

Interesting...

Added sci.electronics.design

"Danev said his company was in talks with several car manufacturers to
install a chip that can tell how far the key is from the car, thereby
defeating the power-amplifier trick."

We don't have details, but I'm a little sceptical that this would be the
solution it appears to be. While it's easy enough to send out a signal
and measure the response time, thus determining the distance, it's not
so easy to ensure that the responding device is the key fob.

Normally, the fob proves its identity by sending a code to the car. As
is apparent, this doesn't prevent the signal from being relayed. To
ensure that there's no relay, it would be necessary to measure the
response time of the entire code. The problem here is that it's not know
to any degree of accuracy what that should be - there's some variation
in the frequency used by the fob.

Measuring the time to the first edge of the response is no good - it may
be inserted by the relay device, with only subsequent edges being
relayed from the fob.

Perhaps the whole keyless entry concept is fundamentally flawed.

Sylvia.

I missed the beginning of this thread wherever it is. Are you talking
about this?
https://eprint.iacr.org/2010/332.pdf

I have a theory that several times in history, some bright engineer at a
car company has come up with a much more secure immobilizer that will
greatly reduce car theft. That engineer is led away to a meeting with
HR, and offered a much higher paid job in the bumper polishing
department, and the secure immobilizer is quietly stashed away in the
cupboard with all the others.

Seriously, many people who have brand A car stolen will go right back to
the dealer with the insurance money, and buy exactly the same model of
car from brand A again. They don't have time to go through the hassle of
choosing a model of car again, just because of what some stranger did.
Every time that an immobilizer fails to do its job, very probably the
same car maker makes a fresh sale.

I suspect that a truly effective immobilizer would have a significant
negative impact on the profitability of a car manufacturer. What
percentage of new car purchases are to replace a stolen, recent model
car? Amongst people I know it is a high percentage (maybe 2 in 5, both
replacements were the same model that was stolen).

To the small extent that customers care about insurance costs due to the
risk of theft when choosing a car, the insurance ratings are probably
based on assessments by some "independent" group (Thatcham etc.) which
may well be box-ticking excercises where they get extra points for
securing against one method of entry whereas the other (more inventive)
ones are not even looked at because they didn't know it was possible.

I would really not trust any immobilizer that comes with the car - as
the incentives are all wrong. The only thing that would fix this
incentive would be for the car manufacturer to be automatically liable
for the vehicle replacement cost in the event that the keys are still in
your posession. I think that would rapidly improve immobilizers, and
they probably already have a cupboard full of good designs that they
have been suppressing.
 

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