RFID reader technology and cloning tags!
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- Опубликовано: 10 мар 2016
- RFID tags are available in a few different standards ranging from the very secure ones with data and encryption, to the much simpler ones that simply present themselves as a unique (or not so unique) serial number to the RFID reader.
This is a look at the cheapest and most common, that is widely available on ebay from a wide range of suppliers as either bare components or packages for full door control. Not that I'd trust these much for security with people like us about... 
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At a secure, classified facility, where I used to work I remember digital door locks that used an LCD touchpad to enter the code to open the door. The twist was that the keyboard layout changed randomly each time, so you wouldn't be touching the same portions of the screen each time.
Lol, my old phone had that.
Our secure Psych. Unit uses that technology. The lock reader is activated by the proximity of my RFID ID card, and I then confirm my ID with an 8-digit PIN code. Owing to the nature of my job, security is VERY tight, which means having to memorise a new random 8-digit code every Monday. It's not just to keep our Customers "inside", it is also to protect them from their "acquaintances" outside . . . . . . . .
It reminds me of a joke... The punch line was "I may be crazy but I'm not stupid".
Chaplain Dave Sparks Never a truer phrase said, Mate! The "clients" I deal with are pretty nasty individuals - and they are all very smart indeed, which is why the system is designed the way it is. Video security links are by multipath fibre to separate buildings, we use genuine, dummy and covert camera systems, and there is no way that Inmates can view any of the entry keypads. We only enter Patient Areas in groups of three (two of whom are armed as well as very able where self-defence is concerned), and we are monitored "one on one" via the camera suite whilst we are "inside". Since the nature of our "Clients" is such that none of them are likely to be ever released into the general population, we HAVE to assume they will do whatever they think will produce the desired result for them (i.e. escape - irrespective of the consequences to others), so the system operates accordingly. I have no doubt whatsoever that, should one of my "Clients" decide that murdering me would provide a means of escape, they would do so with zero hesitation. This certainly concentrates the mind . . . .
I've seen some ScramblePads here and there.
I'm only 9 months late to have a topical comment ...
When you mentioned the wear marks on keypads it reminded me of a manager I had years back. He took offence to us night shift scum going in his nice warm office and using his lovely high end PC to generate stock control labels rather than using the temperamental old PC in our unheated portacabin in the yard. We'd been using his PC for months before he noticed, But as soon as he did he got very snotty about it. He had one of those mechanical code locks fitted to his door, So that night I drew along the underside of all the buttons with a whiteboard marker. Next evening I went back and saw the 4 buttons that had scuffs in the pen marks from being pushed in and guessed the code on the second attempt. I also found that he'd added a password to his PC........ Which was the same as the door code. :)
About a month later he confronted me and asked if we'd been in his office again (He was the kind of pedantic tit who'd leave a pen in exactly the same place on his keyboard every night to see if anyone had snuck in and used his precious COMPANY OWNED computer), Not wanting to flat out lie to management (On the off chance I'd left anything incriminating in his office the previous night), I said "Duh, Didn't you have a lock fitted to your door". He seemed quite happy with the answer and went away.
He never mentioned it again, But on my last night working there I did sneak in, set high scores on minesweeper and solitaire, And put my own name against them. I hope he eventually noticed. :)
That's such an interesting story! I'd love to hear more if you have any.
such a fake story as you say it took you two atempts to get the order of the numbers, if you knew anything about those locks you would know the order of the numbers is not relevent if the code is set as 1234 it will also work with 2341 or any other combination so you wont need two atempts
@@peter1970uk really?
@@lostspace5811 yes I am a school caretaker and for security I give the teachers different combinations of the code then if the students find it I know whose code they find
@@peter1970uk
You do realize that there are many different types of such door locks, right? Some are more 'secure' than others and the order of the digits might be relevant in some (I know that for a fact actually). So, I wouldn't be too quick to dismiss his story as fake. It is a perfect plausable story...
I am a retired computer admin. Bought arduino for a dollhouse project believe it or not. I am fascinated - I started going through the the basic start me kit but I wanted remote control and somehow landed on this channel, I wish I was back in school and you were my professor I LOVE your channel - always always interesting things. You think like me a lot when tinkering. Just absolutely fabulous....and the accent helps as well LOL!
I have been involved with projects that have "Wander Guard" systems. They work in reverse in that they LOCK the door if someone wearing the bracelet approaches. It is used to prevent Alzheimer sufferers from getting out of the assisted care facility through "street side" doors while allowing access to the garden areas.
Bigrignohio Ashton Security Inc. I bought the common Chinese card reader as showing in RUclips it works only with my company access cards. But with my building elevator card access and my building car parking access didn't work. It can read my building elevator access card and broke the locking encryption code and successfully copy the card but once i tried it its not even reading the card from the elevator card reader! The car parking card can't be read at all from the card read reader i bought. Please if you know any better card readers and can copy and encrypt the codes give me the brand name so i can buy it and test it as i tried to search but all my tries was useless . Thank you so much
@@MoonLightGGA Did you have any luck on your search for a better RFID reader? If so, which one did you get?
The history of RFID is really interesting. I'd recommend looking into the life and work of Leon Theremin (yes, like the instrument. That came out of the same research) and particularly into "The Thing", which is the single greatest covert espionage device ever created
Bunny (∞) Ashton Security Inc. I bought the common Chinese card reader as showing in RUclips it works only with my company access cards. But with my building elevator card access and my building car parking access didn't work. It can read my building elevator access card and broke the locking encryption code and successfully copy the card but once i tried it its not even reading the card from the elevator card reader! The car parking card can't be read at all from the card read reader i bought. Please if you know any better card readers and can copy and encrypt the codes give me the brand name so i can buy it and test it as i tried to search but all my tries was useless . Thank you so much
@@MoonLightGGA That's highly dependent on what card you have. Just NXP's Mifare makes like fifty different types.
Casinos, crime done in style.
I love it, and so true
I am a security systems technician and this is interesting. In terms of being able to short a power supply to open a lock, any good security tech will use 2 power supplies, one for the readers and one for the locks, using transistor switch relays to open the lock. These switches are kept low with a pull down resistor when the microcontroler initialises to prevent the relays from switching during starting.
I use NFC tags all the time around my home by just sticking them in different places around the house, so when I put the phone in that area the phone is set to do whatever I need like opening Google Maps when I get in the car.
That's a great idea. I'd that linked to an app like tasker?
I like it when you explain on the notepad. You can be a fantastic teacher in electronics!
The stand alone keypads are vulnerable to numerous attacks:- Copying the tags as you demonstrated, also its very easy to rip the plastic keypad off the wall to access the wires to the lock solenoid and bypass the keypad relay contacts too. Its also easy to unscrew the lid and hold down the tamper switch while bridging the contacts. Another trick is to use a stun gun on the keypad as it typically will cause the electronic and transistor driving the relay to go short and power and operate the lock too, this will destroy the keypad electronics however.
or just hold a big Neodynium Magnet in front of it to switch the relay then you have an open door and no Harm or traces done a very old lock would be probably more secure than this
Some of these readers if you take them off a wall and run a magnet on the back will unlock
12345?! That's amazing! I have the same combination on my luggage!!
And ''password'' on my computer :)
elesjuan hail Scrooge salute
Yay! A spaceballs reference ;)
Ludacris speed, GOOOOOO!
My old place of work had one of those rfid readers for the office, a disgruntled employee had broken the system and we couldn't get into the office. Now I knocked the device off the wall and managed to bypass the system completely using a phone charger. This was a while ago so I hope things have improved by I don't think it has.
Ok, this was probably the most beneficial explanation of how passive tags or NFC tags actually work- that I have seen. Thank you for taking the time to explain it.
I bought one of these units a few months back to use for my work room. it was fun to install and it keeps the kids out.
Having this system on my home, the keypad should never be accessible from the outside, that is what the external pickup coil is used for. As for copying tags, you could experience the same issue with a copied key.
BTW re. the resin encased unit it's worth Goggling wiegand replay attack, if you can access the wiring (e.g. by prising it off) then you can stick a simple dongle in the line that will record any cards presented to the reader, then the attacker comes along with their special card which tells the dongle to use a stored card code to open the door. I designed a custom in house system for the company I work for that uses an encrypted challenge/response link between the reader and the controller so a man in the middle dongle attack won't work. wiegand is a very weak protocol security wise yet still widely used.
I'm 100% sure that this channel rocks!
Michael Thompson me too, 500000%
You Guys ROCK!! Michael, waldemars, and Kris!!
That beeping drove everyone in the house crazy. love the video, very educational and informative!
I actually use one of these units on my garage door.. I would never use it on my house door as I think it is easily hacked by just brute forcing the code.
As I'm not using the keypad and just the RFID function, I bought an RFID antenna from eBay, desoldered the antenna wires from the board and connected the external antenna. This antenna is outside my garage. It also gives a lot better response from the unit.
The antenna I used is this one: "External extend sencondary antenna for RFID access controller 125k 1.5m length"
It would take a few hours of typing to brute force a random enough code. This counts as secure, as there are people who will pick even high security pin tumbler locks in 20 minutes, and most of the ones people use are raked or picked in under a minute with a very moderate level of skill.
You know shit is about to get real when Clive pulls out his notepad.
@18:58 looks like the little CMOS chip is used to pump current into the coil which is controlled by the Nuvoton MCU on the other side of the PCB. The MCU and the CMOS are both acting like an RFID reader, with all intelligence coded in the same MCU. The 4069 Inverter CMOS can output up to 25 mA with DS voltage near 15 VDC and up to 5 mA with DS voltage near 5 VDC - both can be sink or source currents. Not a bad current driver into the coil antenna when using the 12 VDC Switch Mode Power supply you mentioned later.
I've got this idea that you're house is like Wallace and grommit.
+flagpoleeip Same :p
flagpoleeip Pmsl that's hilarious. I can just imagine it now
More likely Colin furze's house. He has an ejector bed among other things.
*your
So he basically lives in a Tracy complex. Thunderbirds are go!!!
An awesome eye opener. Not an awesome door opener.
i administer an RFID security system and this video has been hugely educational, i'm saving it to rewatch later
RFID writers are quite useful when you have to make tons and tons of tags, probably embedded tags in your products to identify stuff.
Yes they are, and thats the only thing where those non encrypted tags should be used anyway in my opinion.
Alzheimer's is heartbreaking. A nice policeman brought my mum home one day, after she went for a walk and the lady in the post office recognised that she wasn't herself. She had it bad, so letting her go wandering wasn't a safe option.
Great video Clive! Thanks for making it available.
I'm not sure why, but the phrase "having just sniffed someone else's tag" sounds faintly dirty. It is also the only video where I have heard that particular phrase. So good job on that.
You can even get tiny, passive RFID detecting stickers that will fit on a fingernail. Pretty cool but the range must be short.
I've been playing with the basic MFRC522 (13.56mhz) reader/writer as one of my first Rbpi projects (also incredibly simple circuitry), so this was informative. Thanks again Clive. You're a legend.
If you mean the NFC fingernail stickers, they are really just designed to be powered by the magnetic field from the Phone's coil.
That blue handheld RFID copier worked alot better then I expected.
Lost my main keychain(in a lake) witch had 2 of my 3 tags to my apartment complex so I bought one of these since a new tag would cost ~30$.
Now I have 6 tags and the ability to make endless more for a total of ~19$. And I've learned that the security around these things are a complete joke.
And for fun I used it to make copies of my dad's RFID-card that he uses to acess secure sites with important IT-equipment around the country. It also worked.
You could quite easily disable the beeping-sound and then just copy someones tag in a crowded area or similar and Beep! Full access(assuming there isn't a number-combination that you don't know)
oh, that's not nice. I wouldn't ever want to use these tags, no matter their use..
I know its an old comment, but right now that reader goes for 3 euro lol.
And you could not read and clone everything with this 3 euro device. Just 125 Khz
BigCliveDotCom is spot on about not being secure. One would be very surprised (or not) at how many are out there with this flaw. The eBay special he explains would (make that should) never be used where real security is needed or where multiple tags are issued, or where you want to know who comes in and when. Apparently, if you lose a tag, you can't remove it unless you wipe and reprogram all tags. The better ones just power a reader like Clive showed. The reader sends the chip's unique code to the micro which determines if the card has granted access at that time. Removing the reader does little towards granting unauthorized access. The better ones also have a facility code in the chip which can't be cloned (easily). As for the casino chips, they can also count what you have, track the tables you play at and movement in the casino.
Access cards don't store data, access codes, account balances or eye color. They are just electronic "keys" that identify which user's information is to be accessed in a central database.
I like the way u talk and explain ur contents . U can talk to an angry person and make them carm . U can be a good teacher
Often installed behind a nice thick laminated glass cover panel, giving a 5cm gap for clearance. Tag only mode though, and the gap means the magnet does not work, though the tags work fine. Glass is generally tough enough to hold up to vandalism.
SeanBZA Or you could put a thick polycarbonate panel but it won't look as nice as glass.
My super magnet will work :) Even better when I put 2 of them on a stick and use a drill to spin them making even more current in the receiver coil. :D
Love your videos Clive. Thanks
Do more in depth on RFID!
We use RFID tags at my university for the accommodation buildings, they're tag only entrance with ID cards
I know they're quite strong because I can use my card in my wallet behind some other cards and it will work. The cards are like the thinner one you have.
Interestingly they're not NFC or like bank cards (which I think are also NFC, my phone will read my card), so I can't clone the card with my phone and use my phone to open the door
For the convenience over keys, they're useful and they don't appear to be the cheap generic ones like you showed so at least should be more secure
+Kieron Quinn Well they are convenient and one has to keep in mind that keys can be copied as well, in some cases even when all you have is a good picture of them. And ofcourse physical locks can be picked by people that are good enough at it, having seen some videos around on youtube about the community that I hope mostly does it as a challenge it seems like there's few locks that aren't impossible to deal with.
But locks whether they are the electronical kind of old fashioned physical kind will never be a foolproof thing, at best they make it inconvenient or slow competent thieves down and make the less competent ones resort to brute force entries that hopefully set off the alarms or get noticed.
And as for what your Uni uses, they may well use something that functions similar to NFC internally but operates on a different frequency or uses a different standard on the same frequency. Perhaps proper security or they might be using the good old security through obscurity trick.
I'm chuckling at your phrase: 'Casino's are crime in style' 😆
thanks friend. I learn a lot of things by watching your videos
These are really fun to do projects etc.. I use one as a login method for my desktop.
cool
Awesome but could be insecure, perhaps implementing multiple logins could be the next stage of the project
Hi Clive, I hope your mother is doing alright! I know you mentioned her in a few videos (this and the pseudo GPS tracker one), so I thought I'd ask. Have a great weekend! I'm still waiting for you and your brother to do a video together - you both scotch and rum soaked, pie-eyed and playing with leaded solder and hot soldering irons! :)
Great video as always Clive, please keep up the great videos :)
I literally took delivery of this same item just this morning!
Awesome video Clive. Really interesting.
haha "Casinos - Crime done in style" Well said. Interesting and informative video
Thanks for all the great entertaining videos clive, have a great new year and 2018 cheers 🍻
Hehehe, the chinese one in the beginning is absolute shite, you can open the door with a larger neodemium magnet without getting it off the wall.. :P
+gilgameshismist Oh, good call. Over the relay. I'll have to try that.
+bigclivedotcom goes for ANYTHING with a relay depending on the contactor position N.O. or N.C.
It's a 50/50 it would work. So you have a poker chip, you could gamble on it with that trick lol
+ElfNet Gaming there used to be a big problem in telephone systems with relay 'interaction' where one operating would operate another nearby... you'd often find relays in sealed metal cans for that reason. I still have some of the later screened reed relays (from TXE4 exchanges), very handy devices
+ElfNet Gaming I guess swapping it out with a SSR might be a good way to get a cheap, moderately secure rfid system
+bigclivedotcom If you do, could you show us on video? That would be great, Thanks for the videos!
I've got several of these modules and yes, if you use it just like putting it in front of the entrance it's not that secure - with some tricks you get access. As for me I put the entire system inside the house, I remove the internal coil and place it behind the door at the inside. The module is so sensitive that it can operate through some cm of wood, glass and even thin walls. So it's physically accessible just from the inside but with the right card you open the door from the outside - doing so, everything's getting pretty secure (moreover because of the fact, that nobody has to know, where the receiver-coil is placed to (behind the door / wall etc.) ...good thing.
The amount of Tekone access systems left with default passwords astounds me, nearly everyone I've ever worked on!
I never really thought about how r.f.i.d works, thanks clive, very interesting system :-D
They had one on the computer room door at the place I used to work. Whenever the janitor would wipe down the walls near the sensing head, the doors would pop open, driving them bonkers. Cleaning lady told me, but we kept it our secret. Coffee machine in the same building had a beam at the bottom where the cup dropped. If you put your personal cup in the bottom, you got free copy. Perks of the accounting department. (and me)😁
I injected a rfid chip into someone as part of their art college degree show a few years ago. If you scanned your phone over her hand it took you to her website to show more of her artwork.
you may also open and make a brigde by wiring.Basicly put a wire between the 12V and the coil of the relay , this is what happen also for electric gates.Anyway my opinion is to have a controller far from the sensor and implement a protocol.Of course the relay has to stand so far from the door.
Interesting stuff. I've used keycards at work for 25+ years, most of them 125 KHz stuff, but I haven't dug into the details. I hope you'll do another one on the long range unit you ended up using at your mother's, as that might help me address a few issues as well.
The casino chips would be using 3.56Mhz and DES/AES Encryption. They would also have a worm memory section allowing one-type write of unique identifier. Also the long range card you showed had a coil with many more turns, the more turns allows is what give its range. Just like a transformer, the induced voltage is higher with more turns in the receiving coil - Therefore even if a small voltage is induced (because its far away from the transmitting coil) it will still amplify the voltage sufficiently to work.
Equipped for extra leds? No, someone just cut up a Mastermind board :D
I learnt all about rfid via an arduino, its fun stuff to learn!
this guy is very informative, i've posted links to his videos on my own website
Thank you for doing what it is you do!
The bosh or hid systems use a rolling code (sends a new id/code every use) system kinda like garage door openers so that is probably why the gadget didn't work on your work card.
+KingOfKYA The work card is passive with no powered electronics other than the ability to supply the data while powered. It's a military pass, so I'd hope it is a much more secure data format.
+bigclivedotcom It still can write a new one time use code to your card in that brief instance. The local police department here has such a system and use the employee picture ID cards with the rfid embedded in them.
+KingOfKYA More likely just a different frequency system. There's copy devices available for the different system types.
@@bigclivedotcom I know I'm replying to a very old post, but there are plenty of contactless smart cards that are powered entirely by the reader and don't need any power on the card. Instead of transmitting a static ID number, they function just like a regular smart card: the reader sends a code, the card encrypts the code with it's private key, and it sends the encoded code back to the reader. The reader than attempts to decrypt the encoded code with the card's public key, and if it matches what was originally sent, it knows the card is authentic. Since the card never transmits it's private key, a cheap Chinese gadget can't duplicate it.
It could also be just a different frequency or format. I have three of those three blue duplicators: one for 13.5MHz S50 tags, one for 125kHz EM410X tags, and one for 125kHz HID tags.
I have keyboards with that same nuvoTon chip. I believe it is a 8051 mcu.
This has to be one of the most informative vids I have seen in a long while
My work uses a card fob system like this for the employee door. When I get really early 6 AM shifts, as a part timer (even with 40+ hours a week, as I), one doesn't get a card, so one must stand at the door pressing the buzzer and waiting till someone kindly opens the door from the inside or comes along with a card. It's a very big building so sometimes the 10 night crew workers are on the other end and just don't hear it for twenty minutes. Now on cold winter Canadian mornings, this is a pain in the arse, literally.
Because of this video, I nabbed the exact same eBay RFID read/writer, asked our assistant manager if I could copy her card (as they're all the same, no ID chip, just the basic unlock code), and in two seconds, I had a fob on my keys that opens the door for me. I let our head honcho manager in on it and asked if I could use it, as we have security cameras and I wanna be all above board, and even he thought it was neat, and simply told me not to show it around and tell people I borrowed his card for that shift only. Been using it for three years now. So thank you for allowing me to not freeze my plums off every morning.
I have the exact same system, have been using it for years but as a secondary system. It always struck me as a pain that you have deadlocks on all exit doors but you can't wind them out on your exit door. So using one of these pads, with electric deadlocks, mounted inside the house (so forget tampering issues) with a coil reader on the outside of the door frame. The fob then opens the electric deadlocks from outside and a button releases them from the inside, the keypad is never used. As soon as I leave the house the door shuts and deadlocks pop out. I then lock the door as normal. So now I have 3 bolts on the door.
I would suggest using the 13,56MHz RFID standards since they are way more secure with both 48-bit encryption and well as built-in EEPROM of about 1kB and a unique code on each tag that can be used, making cloning way more difficult. These are also the once used in many MTR/Travel cards etc. They use the PN532 reader chipset which is much more fun to play with since you can connect them directly to a Ardunio (many libraries are available). If you purchase the tags on eBay or Alibaba, 100 pcs cost less than 20p each.
So Clive, I am an electronics newbie, and I was wondering if that tech - that lite the leds on the test paper with the copper loop antenna- is what they use to wirelessly charge devices like my cell phone?
+Jake Enns Yes, but with communication between the charger plate and receiving circuitry.
Clive - if you want some further explanation about these devices I'd be glad to help. I spent the last 7 years in door access installation and support before returning to IT (and I do this work at my current employer as well).
Cheers!
I had one of those cheap RFID units on my shed for a long time but I changed the codes. Currently using one of my own design so if you rip the outside unit of the wall the door won't open.
may i suggest you swap out the red led with a warm white one🙄
brian browers 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨
I'm sorry your mother has Alzheimer's. My great uncle died recently from that (and several other health problems). We took care of him and we watched him go from the nicest guy ever to just a complete jerk as a result of the Alzheimer's. Please remember that she can't control the way she acts and remember what she was and not what the disease makes her.
She's past "that" stage. Which is a relief, since it was quite a stressful time. We just treated her as our little girl going through her teens.
Understandable, it's difficult to watch the change. I hope this gets a cure soon.
thedarkdragon89
yeah I need to remember that myself. My grandmother has it, and it's a pain in the neck.
I work on gates, and all of the access control devices. an unbelievable amount are set to default codes and so forth. also security tends to be perceived versus real. The keypad and RFID system we install at a housing place is not even remotely close to the same as what we install at let's say a shipping center. I however have wanted to make a tool to scan either tags and then emulate them or a gate remote emulator. you continued to mention a style type I was unfamiliar with maybe that is the uk/USA part but here I think what you are referring to is called Wiegand and [I say it wig and] is more of the communication from the "brains to the dumb reader " is that what you meant or no?
+Kyle Thompson Yes the Wiegand standard.
I did wonder whether a dedicated power supply is necessary. I ordered one of these on behalf of my brother-in-law who wants it protecting his front gate and the little leaflet (printed on a single sheet of toilet paper) indicated the maximum load to be
Where did u found that Jack Daniel's Chip? That one is still missing in my collection :p
I've used this in my company restricted access areas. Cheap and easy ones.
Interesting about cloning the tags like that! I always thought that RFID tags had a unique serial number in ROM, as well as - sometimes - a data storage user area, and that locks used that serial number. So cloning shouldn't work?
Or are these particularly shitetastic locks that read the user data area and not the serial number?
+Azayles The orange tag is designed to be programmed with a copy of any other similar tags code number.
So they don't have a factory etched unique serial number? maybe I'm thinking of another system. Or I've just invented a thing :O
Look out for me on Dragon's Den :P
Hey Big Clive! We have a security system at work that uses 125Khz readers, and one was surplus to requirements a few years back. It's potted, but the terminals on the back are nicely labelled and there is a Wiegand library for Arduino, so I set it up to test damaged access cards at my desk. You probably could have done your mother's door access with a reader, an arduino and a solenoid release for the door. Simple and cheap.
The card your little rewriter wouldn't handle is probably an NFC MiFare card which uses 13.56Mhz. You can get an NFC shield for the Arduino Uno that will handle those but you then need to know the "A" value to decrypt the stored data.
The system I put in for my mum used a standard door keypad with Wiegand capability, coupled to a magnetic door lock. The reader had to be the big long range one as my mum couldn't get her head around standing close to the door for the standard unit.
I wonder if one of those individual RFID readers (as shown at 1:48 ) could be used as a NC or NO switch for an alarm system? They seem to come with 4 or 5 different leads coming out of them.
I looked at the older model of this reader (mine had a nuvoTon chip), along with some other cheap ebay RFID reader only modules, when teaching myself how RFID works. I actually made a small board with an AVR processor to replace the nuvoTon chip. The older board has all the antenna drive circuitry and filters to read out the signal in discrete components. It was a very interesting project teaching me a ton of analog electronics. I spent the better part of a summer building different types of active filters. Happy times =) I'm very curious to what the SOIC8 package on the button side of the board is. Perhaps a dedicated ASK demodulator?
Wiegand is a very simple serial protocol between the micro on the reader and the surrounding system. Communication between the tag and reader is Manchester encoded ASK, as far as I've seen. I've read about biphase and other protocols, but I think Manchester is the most common.
Clive. I bought one of those Chinese blue cloners like yours and tried it with two different RFID tags and it didn't read either.
Are there only certain types compatible?
+BeatboxNorwich It should read the generic 125kHz tags.
Cheers, I always thought it was the length of wire giving of a radio frequency like how a antenna is tuned, never realised it was a chip inside.
Songle relays are reasonably good, they do last around a half million cycles before burning up ( literally) as the contacts disintegrate. Used in those L sealers, so I change a fair number of them, but they only cost 50p each.
I'm not a 100% sure, but I think I'm drunk as hell.
+Toni Lähdekorpi It's the weekend, it's fine.
+bigclivedotcom My hobby is RFID and I just want to say that 125 Khz is spoof able with a device called the prox mark 3. 13.56 cards have more data and are slightly more secure except for mifare 1k and 4k. So get a mifare desfire v2 card, a reader writer and a 13.56 mhz lock. You will be able to do more with that.
+bigclivedotcom Also the long range 125 khz tag the thick one is a verity of a HID card.
hahahahahahahahaha
With all your electronic toys, it seems your most valuable tool is your notepad. ;->
Hey Clive, There's a history channel documentary called "Beat the wheel" about a group of students that built a wearable computer in the 70s that was used to predict roulette. Problems occcured when their perspiration short-circuited the vibration solenoids and the thing started to give them electric shocks. Think they got caught shortly thereafter. Worth a watch if you're interested in casinos and electronics.
If you look on the last page of your passport, you'll see the exact same fine ring of wire with a tiny chip all laminated on.
Smmmile:) SOME passports.
@@xenonram almost all UE passport after 2016
Look for the little chip symbol on the front cover.
Hah. I've got some Arduino code kicking around to read and emulate these RFID tags that I should really release one of these years. Can also talk to the reprogrammable ones used by those cloners over their native protocol; they're EM4305 chips emulating the read-only EM4100s according to my notes. Never got around to actually trying to reprogram them though, and my homebrew reader is finicky.
Your work RFID is likely one of the more secure challenge-response models, though most of those are hilariously broken. Random number generators that repeat the same pseudo-random sequence every power on, dubious homebrew encryption, that kind of thing.
So when a fob is programmed, does it program it by attenuating the signal to a proper level that the transmitter can open? Or something else going on?
The MK Grid 6- or 8-gang box is perfect for containing that PSU, if anyone is interested ;)
It also makes a nice backplate for the control pad.
You can make these writeable FOBs yourself with a spool of wire and an AT-Tiny85
That sounds like a fun Arduino project.
Could you open one of them by making a coil then attacting a DC motor to the + & - to the coil the power the motor near the door lock thing.so it gives off a RF frequency?are does it need to be a certain frequency.thanks for showing
In addition to my previous comment. Reading and writing the fobs, with the new cards. The old 125khz simply gets powered up then transmit the code, the new ones initiate 2 way communications, where encryption can be used.
I would assume the extra lamp positions would be used for extra modes, maybe for telling you which building and room your key goes to in an apartment complex? Maybe it has an enhanced version somewhere that can control multiple doors on one building and the light tells which has opened
Holy cow man I seen quotes once for 500 long range rfid tags and 2 readers for cars/gates it was like $80k installed
The chip at 17:40 is an 8052 microcontroller.
what is the tiny chip in that white card?
You can buy the chips separately. The company I used to work for made custom tags for certain industries.
The white cards come apart if you soak them in acetone. I got the coil and the chip out of one and laminated them. Good for illustration.
Hi Clive thanks for the video..was wondering if you had come across the zizzle zoundz a weird music making kinda toy really but great fun..though not easy to find cheap now. I got one years ago from a cheap shop for about £8 new. They have RFID coils / chips in them and different sounds / beats per object depending on which pad you put them on.
What would be the best way to find all of your videos pertaining to your RFID setup for your mother? I quite like your videos & I’m very interested in setting up some RFID for my home, but number of different units & amount of information is somewhat overwhelming, so I’d like to know what all you used to determine a better starting point...
19:41 what about that chip next to your pinky?
We use those to get into our work. Now i want to clone some tags
2:16 ah, the nuvoton microcontroller. Classy
With using wiegand systems and to make it difficult to do a replay attack, you must secure the wiring so it is virtually impossible to access, also motion security cameras can catch an attacker attempting to modify a keypad. Another trick is to disable the wiegand input at the controller so access is only available at certain times.
Please do more things with RFID
Can you do some projects with these RFID readers?