[ale] OT Fwd: Dc404-Chat New smart locks for your home

Jim Kinney jim.kinney at gmail.com
Thu Jun 20 15:18:13 EDT 2013


yeah... but duct tape and Al foil increase geek cred more than plonking
down $3 for a finished product ever will :-)

Hmm. I have metal foil duct tape....


On Thu, Jun 20, 2013 at 3:11 PM, Ron Frazier (ALE) <
atllinuxenthinfo at techstarship.com> wrote:

> **
> A google search for rfid protective sleeve yields lots of interesting
> results.  The following caught my eye because it's a 3m product.  They
> usually produce pretty good stuff.
>
>
> http://solutions.3m.com/wps/portal/3M/en_US/ElectricalOEM/Home/Products/DataProtectionSleeves/
>
> Sincerely,
>
> Ron
>
>
>
> On 6/20/2013 2:21 PM, Jim Kinney wrote:
>
> If the gov issued ID came with RFID and it's not working anymore, that's
> probably a much bigger problem than anyone wants to have. Especially at the
> border on the way back in!
>
>
> On Thu, Jun 20, 2013 at 2:12 PM, Ron Frazier (ALE) <
> atllinuxenthinfo at techstarship.com> wrote:
>
>>  That stuff looks pretty cool.  May end up needing it.  I found this
>> information about enhanced drivers' licenses.  I don't think GA has
>> implemented them yet, but they do have an rfid circuit.
>>
>> https://www.dhs.gov/enhanced-drivers-licenses-what-are-they
>>
>> <quote on>
>>
>> State-issued enhanced drivers licenses (EDLs) provide proof of  identity
>> and U.S. citizenship, are issued in a secure process, and include
>> technology that makes travel easier. They provide travelers with a
>> low-cost, convenient alternative for entering the United States from
>> Canada, Mexico or the Caribbean through a land or sea port of entry, in
>> addition to serving as a permit to drive.
>>
>> The Department has been working with states to enhance their drivers
>> licenses and identification documents to comply with travel rules under the Western
>> Hemisphere Travel Initiative (WHTI)<https://www.dhs.gov/files/crossingborders/whtibasics.shtm>,
>> effective June 1, 2009. The states of Michigan, New York, Vermont and
>> Washington are issuing these enhanced drivers licenses.
>>
>> Enhanced drivers licenses make it easier for U.S. citizens to cross the
>> border into the United States because they include
>>
>>    - a vicinity Radio Frequency Identification (RFID)<https://www.dhs.gov/files/crossingborders/gc_1197652575426.shtm>chip that will signal a secure system to pull up your biographic and
>>    biometric data for the CBP officer as you approach the border inspection
>>    booth, and
>>    - a Machine Readable Zone (MRZ) or barcode that the CBP officer can
>>    read electronically if RFID isn't available.
>>
>> The top 39 land ports of entry, which process more than 95 percent of
>> land border crossings, are equipped with RFID technology that helps
>> facilitate travel by individual presenting EDLs or one of the other
>> RFID-enabled documents.
>>
>> <quote off>
>>
>> Might have to get some of the special shielding fabric you mentioned for
>> my DL or a special pouch like I already have for my passport.  It's
>> probably a crime to "vandalize" that card and deactivate the chip.
>>
>> Sincerely,
>>
>> Ron
>>
>>
>> On 6/20/2013 1:48 PM, Jim Kinney wrote:
>>
>>  wrap your RFID cards in this stuff:
>>
>> http://www.adafruit.com/products/1168
>>
>>  or go anti-emf crazy and buy a larger blob from:
>>
>> http://www.lessemf.com/fabric.html
>>
>>
>> On Thu, Jun 20, 2013 at 1:32 PM, Alex Carver <agcarver+ale at acarver.net>wrote:
>>
>>>  On 6/20/2013 09:50, Ron Frazier (ALE) wrote:
>>>
>>>> On 6/20/2013 10:49 AM, William Bagwell wrote:
>>>>
>>>>> On Thursday 20 June 2013, Alex Carver wrote:
>>>>>
>>>>>> Ok, then use the bright light to illuminate the card from the edge.
>>>>>>  If
>>>>>> you get the light just right you should see a square dimple in the
>>>>>> back
>>>>>> of the card where the pocket for the chip is located.  On my card,
>>>>>> looking at the back of the card with the mag stripe on top, it is
>>>>>> located just 5mm (to the center of the dimple) below the bottom edge
>>>>>> of
>>>>>> the mag stripe and 10 mm in from the right edge.  A bright light
>>>>>> shining
>>>>>> across the card (the way you might shine light across a floor to look
>>>>>> for a lost screw or other tiny part) should highlight the dimple.
>>>>>>
>>>>> Bingo! Barley detectable 'pad' about 5mm square. Confirmed on the
>>>>> sacrificial
>>>>> card - metallic foil and has the 2mm chip with in.
>>>>>
>>>>> On a Chase Slate it is above the mag stripe and the curved "Blink"
>>>>> symbol
>>>>> points almost directly at it.
>>>>>
>>>>
>>>> I'm interested to know if that card had any writing, symbols, or legend
>>>> on it to indicate that you can use it wirelessly.  What's the point of
>>>> putting it in there if you don't notify the customer that he / she can
>>>> use it that way?
>>>>
>>>> I used one of those 1,000,000 candle power hand held spotlights like you
>>>> get at a tool or auto store to look through my cards.  The trick is to
>>>> hold the card in such a way so you don't blind yourself in the process.
>>>> I don't think any of them have the rf circuitry.  If they do, and I
>>>> haven't been informed by the bank, I will be rather annoyed.
>>>>
>>>> I thought about getting a cheap rfid reader from amazon to tinker with
>>>> and test the cards.  5 minutes of searching revealed a large enough
>>>> disparity of pricing and technology that I gave up on that for the
>>>> moment.
>>>>
>>>> The following google search yields a large number of results that could
>>>> be interesting.  Haven't had time to sort through them.
>>>>
>>>> (destroy OR disable OR deactivate) rfid credit card
>>>>
>>>>
>>>  Yes, if the card has the technology it's marked.  AmEx uses a symbol
>>> similar to the radio wave symbol you might see on a WiFi device (do a
>>> google search for Wifi Symbol and it's the curved lines that you find in
>>> most of the symbols).  Their marketing lingo is ExpressPay.  Visa and
>>> Mastercard should have similar symbols or branding on the card.  THey don't
>>> put the technology in all of their cards so it has to be obvious which
>>> cards do have it.
>>>
>>> I believe the RFID chip in a credit card is of the LF variety (kHz
>>> range).  There is also VHF and UHF RFID technology, too.  Some readers can
>>> handle all three types, others only one.  Sparkfun has a few readers, too.
>>>
>>> While doing a search I found a YouTube video with Adam Savage (of
>>> Mythbuster fame) explaining to an audience at a tech show why
>>> Discovery/Mythbusters aren't allowed to do an RFID episode (hint, the
>>> credit card companies told them no).
>>>
>>> I'm not a tinfoil hat type person but these things are hackable (same as
>>> the passport chips, too).  It wouldn't be much of a problem if the life
>>> cycle was shorter but the passports and credit cards are designed to hang
>>> around for a few years or more.  If a flaw is discovered that exposes
>>> information, there's a very large population of devices out in the field
>>> that have to get replaced quickly and that's not easy.
>>>
>>>
>>>
>>>
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>>>
>>
>>
>>
>> --
>> --
>> James P. Kinney III
>> *
>> *Every time you stop a school, you will have to build a jail. What you
>> gain at one end you lose at the other. It's like feeding a dog on his own
>> tail. It won't fatten the dog.
>> - Speech 11/23/1900 Mark Twain
>> *
>> http://electjimkinney.org
>> http://heretothereideas.blogspot.com/
>> *
>>
>>
>> _______________________________________________
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>>
>>
>>  --
>>
>> (PS - If you email me and don't get a quick response, you might want to
>> call on the phone.  I get about 300 emails per day from alternate energy
>> mailing lists and such.  I don't always see new email messages very quickly.)
>>
>> Ron Frazier
>> 770-205-9422 (O)   Leave a message.
>> linuxdude AT techstarship.com
>> Litecoin: LZzAJu9rZEWzALxDhAHnWLRvybVAVgwTh3
>> Bitcoin: 15s3aLVsxm8EuQvT8gUDw3RWqvuY9hPGUU
>>
>>
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>> http://mail.ale.org/mailman/listinfo
>>
>>
>
>
> --
> --
> James P. Kinney III
> *
> *Every time you stop a school, you will have to build a jail. What you
> gain at one end you lose at the other. It's like feeding a dog on his own
> tail. It won't fatten the dog.
> - Speech 11/23/1900 Mark Twain
> *
> http://electjimkinney.org
> http://heretothereideas.blogspot.com/
> *
>
>
> _______________________________________________
> Ale mailing listAle at ale.orghttp://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists athttp://mail.ale.org/mailman/listinfo
>
>
> --
>
> (PS - If you email me and don't get a quick response, you might want to
> call on the phone.  I get about 300 emails per day from alternate energy
> mailing lists and such.  I don't always see new email messages very quickly.)
>
> Ron Frazier770-205-9422 (O)   Leave a message.
> linuxdude AT techstarship.com
> Litecoin: LZzAJu9rZEWzALxDhAHnWLRvybVAVgwTh3
> Bitcoin: 15s3aLVsxm8EuQvT8gUDw3RWqvuY9hPGUU
>
>
> _______________________________________________
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> http://mail.ale.org/mailman/listinfo
>
>


-- 
-- 
James P. Kinney III
*
*Every time you stop a school, you will have to build a jail. What you gain
at one end you lose at the other. It's like feeding a dog on his own tail.
It won't fatten the dog.
- Speech 11/23/1900 Mark Twain
*
http://electjimkinney.org
http://heretothereideas.blogspot.com/
*
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