Deviant Ollam "Mastering Master Keys" [HOPE Number 9]

[@gonzo_the_great1675]

Did all this at uni in the bar. We had data from a few room keys and main door keys, noting they were in different numbering (letter) ranges. And knowing from the night porter that there were masters and grand masters. It didn't take too many beers to conclude that all the locks must have had had multiple pin stacks. Blanks were restricted, but they would replace keys if you lost yours. Though these would be supplied cut and we suspected that the masters would always have deeper cuts in the masters. So we built up the key with solder and cut it with a sharp knife. Worked like a dream. All pre-internet days with no help other than having that sort of mind.

[@sbunny8]

Very well done presentation. I"m a Certified Master Locksmith and I give it an "A". Vulnerability to hacking is a major reason why master keying residences is usually a bad idea. Regarding restricted keyways... if it's protected by a utility patent, the workaround described in this video is still a violation of the patent. Utility patents are based on what *works*. If you create (without permission) a key that works, you violated the patent, even if your key has extra millings that the patent doesn't show. Nonetheless, it's true that restricted keys are not a perfect solution because you can't be 100% sure that no one will obtain blanks. A quick note about terminology. This video uses the term "shear line" in a non-standard way, saying that you lift the shear line to the edge of the plug. The LIST Council locksmith dictionary says the shear line *is* the edge of the plug. It's more accurate to say you lift the pin breaks *to* the shear line. At 7:34 the video says "multiple shear lines". There is only one shear line in this type of lock. It's more accurate to say multiple combinations that could reach the shear line. I often hear other locksmiths use the term in this way; it's a common mistake. You might not even call it a mistake, it's just nonstandard.

[@buggsy5]

I agree. Other than your "shear line" caveat, well done. However, I would like to have seen mention of the ways to avoid "canyoning". Also, if you can get some unobserved moments, impressioning can often save a bit of time.

[@birdkitchen6054]

the more I delve into this the more interesting it gets, I love a good puzzle, I keep getting different kinds of padlocks, but they rarely elude me for very long, and videos like this make for a better understanding of what is actually going on in the locks. Keep the videos coming I definitely appreciate what you are doing.

[@rbmwiv]

I taught myself to make BMW transponder keys. I was able to buy all the equipment to cut and program keys for less than the cost of a new key from the dealership. I charge 1/2 price of the dealer and make good money. I have a special pick for BMWs and mini. It will open the door in under 2 minuets. I love learning how to defeat security. It’s fun. Just don’t do nefarious things with your knowledge. I can have a BMW without a key crunk and running in less than 10 minuets. Flash a transponder and tape it to the pick and off you go. Comes in handy since I work on them and sell them. A replacement cost me $8. Dealer price $275. No thanks. I do it for profit but legally.

[@lolcatize12]

That is incradibly cool. And it also made me think of gone in 60 seconds for some reason

[@MAGACAT]

What happened to Alice? Well we heard she started showing signs of OCD and then quit

[@creativeusername8760]

best tool concert ever

[@lifeisgood12341]

Thanks you just today installing a new door knob i noticed the anti-carding mechanism was broken and replaced it at the store.

[@DeviantOllam]

Happy to help!

[@arit8009]

I really enjoy watching your talks, they are really interesting! Cool job, btw! I want that job!

[@DeviantOllam]

Thanks! I enjoy giving them. I blogged about how I entered this field, BTW... deviating.net/words/?p=1096

[@chrisbusenkell]

thanks for all your work on this deviant. you sure are a natural at giving speeches.

[@Halfzipp]

Excellent video as always :) Those Miwa's are great locks. Dimples plus magnetic sliders. Definitely a lot of fun. I posted a video picking one of those open with a diy magnetic pick. 3rd ever pick on camera. Anyway, great video and thanks for sharing this. :)

[@gordhenschel1419]

best presentation yet

[@RobertMorgan]

Those magnetic locks are amazing, but they say to an attacker: kick or pry this door open lol Like that scene with Robert Redford in Sneakers, 'How do you defeat a digital keypad lock?' *[kicks door as hard as he can, it flies open]*

[@98dizzard]

@catothewiser neodymium magnets are pretty strong, even small ones. The spinning magnetic disks are entirely separate from the keyway, which is the main source of dirt ingress. The only other source of dirt is between the cylinder and housing, which is generally a very tight tolerance and unlikely to let dirt in.

[@TheBenBen253]

Awesome idea adding the game. That's genius

[@Petemtl3]

FiOS you instead of gratitude as do most of us such a but she is putting out some he is the great war even his physical security which is not his interview of the best researching the crypto awesome congregation is Alyssa professor is this academic tightally awesome to have a committee to Natalie's and professor down a U-Haul right near where I live in Philly

[@anteconfig5391]

He's the keymaster, like the guy from the matrix. He can get you anywhere you wanna go.

[@SteveFrenchWoodNStuff]

That was an excellent presentation!

[@DeviantOllam]

thanks! :-) glad you liked it!

[@mhrs1999colorado]

Isn't that only one of the possible options for the master key? In reality, couldn't the master key be any combination of her original bitting depths and the new found bitting depths?

[@Insipidont]

I think it also requires that Alice's key does not open any other door except hers. You will notice that the Master bitting is always the one alternative to Alice's key for that same pin. So this would actually be harder to pull off from a sub-master key, as then you might have to keep some of the bitting to your original key.

[@Christopher_Gibbons]

Technically, yes. If Alice's key has one bit in common with the master key, they could put in a master bit in anyway to lead her to a false solution. An interesting side effect if this is that would produce a key that unlocks exactly one other door. It would be really funny to arrange for all of the false solutions to open the same room. Inside the room is a guard whose only job it is to wait for someone to come in and get immediately fired.

[@ilovefunnyamv2nd]

yes, I a good example is my cubical mate has a key that can also open my drawer, so are keys are similar enough, but they have the masterpin, or we both have a master pin, and they have 2 on their key, etc etc. but this still only means another day with a few keys to learn the "True" master I guess, because for each pin, its either one, of the other (are maybe 3 if multi-mastered pins?)

[@jeremylakeman]

With those 4 master pins, there are 2^4 = 16 keys that will open that lock. One of them must be the master to the whole system. The other keys could be sub-masters to a smaller group of locks. If you want to be certain, you might need to make all 16 keys.

[@naphackDT]

I thought about this for a bit and in the given scenario, it is unlikely. Firstly, if her key has the master cut on that pin, there is no need for a master pin in the first place, so the pin stack would only have one shear line. For example, on Alice's lock, there is that three cut. Maybe that pin is also master keyed, but her specific key uses the master key cut on that pin. Again unlikely, since any master cut on a pin reduces the amount of available key bittings by ~4-5. Now what if there IS a master pin even though her key uses a master key value. We are working in a tiered system, after all. In that case, that would be the pin that distinguishes different master key classes, and she works at the lowest level of security, so it would be safe to assume that her key also uses that bitting and the other cut is the one for the top level key.

[@evilone4fun]

I have to ask how did the contest go?

[@JenovaFPV]

I understand what Alice is doing with her key and her lock, and the nethod used to discover all the shear lines... But I have trouble to understand how to find the master key afterwards... Why choose one depth instead of the other?

[@A_Wet_Duck]

if you pay attention, you will notice every pin they choose is the alternative to hers her key requires that only her door opens with that key so by finding the other bitings that open that door, she's effectively finding a master key for that kind of lock

[@JenovaFPV]

@@A_Wet_Duck Thank you for your reply... Honestly it's still not 100% clear for me, as a normal curious person that knows nothing in lockpicking / forging keys... Imagine that Alice starts with the master key... Without even knowing it... I mean, I would not. By your logic she would create a key that only opens her door at the end of the process...

[@haselni]

Alice starts with the key that she has legitimately been given to use on only her door. She knows that her key is not the master key.

[@christianbarnay2499]

Alice's change key is 36235. First position: she finds there's a 3 and a 6. If the 3 is the master biting, that means Alice's change key is in fact a partial master that can open all doors with biting *6235. So she would have access to more places than she's supposed to. This could happen if someone messed up but it is very unlikely.

[@HighestRank]

Christian Barnay the truth is that Al knows nothing and for $50K she ought to make one of every permeation of working possibility there is and make sure they work well in her own door before trying the alien.

[@mattnik]

Awesome video! Does anyone have a link to the "easy entry" system described at 32:00?

[@false-set]

Matthew Payne www.qtactical.com/easy-entrie-key-machine/

[@suprememagnetic4850]

Those keys with the magnets are great to fight against pickers, but most break-ins just break the door or lock, and if you lose those fancy keys, good luck getting a new one anytime soon, you’ll have to get a new lock. It’s best to get something that’s common and durable because the fancier and least common it is, that harder to replace.

[@faisalal-otaibi9914]

Thanks it's like a puzzle

[@thelatenightguard7763]

How do I get into Physical Pen Testing?

[@DavidLindes]

How _did_ the contest (38:06) go? Did you get some winners? Anybody mess with anything/break the rules? Seems like a cool contest! And lots of great info in this video; thanks!

[@jimhopkins2530]

00:02 "I think were having a very successful day" I'm watching this high and am tripped up by that sentence.

[@nathanbarry9534]

Wouldn't honoring MACS reduce your keyspace to reduce how much time this takes? By ignoring invalid values?

[@LamentedGore]

What is MACS? I'm a kid who learned how to rake but sucks at everything else...

[@Randy14512]

To add to Mhairi, the TMK may be within MACS but the change key's bittings for the adjacent bittings plus the TMK won't. Matt Blaze's paper addresses this portion of the attack by saying that it is not a major problem because of the 1 time use of the test key therefore the chances of the key getting stuck is low.

[@jamesfair9751]

peyton mcdevitt maximum adjacent cut system

[@derekelam9967]

So this means, a lock that's designed to be opened by only two keys (a change and a master) actually has up to 2^n possible keys that would open it, where n is the number of pins. A mastered 5-pin lock like the one used here actually has 32 possible keys that would work.

[@DeviantOllam]

Math checks out

[@antonliakhovitch8306]

Right, but that doesn't mean that any of those 32 keys can be the master key. If I understand this correctly, for any given pin the master height is guaranteed to be whichever one is not on your non-priviliged key, because they pick your key bitting randomly and the mastering pins represent the difference between your key and the master. The only exception I can think of is if the master happens to match your key at a certain position position and they include a randomly sized mastering pin anyway just to screw with you.

[@antonliakhovitch8306]

I don't think you were implying that any of those 32 could be the master, I'm just trying to wrap my head around this.

[@xn85d2]

Not quite, I think it'd be 2^n where n is the number of mastered pins, so a mastered 5-pin lock with 3 mastered pins would have 8 keys.

[@gg-gg-gg-gg]

It's only wafer thin. EPIC

[@Mriya6]

I don't know how this whole hypothetical situation is supposed to work given that she's going to encounter like five of those MACS violations you mentioned at 16:30 which you say will result in keys getting stuck or locks refusing to open even with valid keys. I mean, how many of those is Alice going to get away with before she raises suspicion? Once, twice tops. And any contractor who removes a stuck key is probably going to then look at the key, and if they know their job they'll notice it's been hand filed, and there goes Alice. I don't understand how she's supposed to get away with MACS violations on basically every bit as she tries every range.

[@KB-mo3sx]

She isn't - he's just explaining the theory of what you do to decode the master. In practice you're just skipping the combinations that would violate MACS. As he said - if you're not certain just skip and if you don't get it right then come back increasing MACS.

[@Mriya6]

@@KB-mo3sx How are you supposed to know which bitting depths violate MACS? Is it just a fixed number of depths on either side of Alice's known bitting?

[@KB-mo3sx]

​@@Mriya6 It's set for a type of lock (tolerances in manufacturing etc). As long as you cut a key that doesn't violate macs it wont get stuck no mater the pinning of the lock. In short - the slopes on the key cannot be too high for it to push the pins up instead of sideways (force distribution). so you know you have: key 3 6 2 3 5 1st pin: 0 - no 0 cuts - NG 1 - as he said violates macs because there is 5 difference between 1 and adjacent 6 - NG 2 - only 1 difference from 3, so - NG 3 - known 4 - only 1 difference form 3, so - NG 5, 6, 7, 8, 9 - can be valid - in this instance it's a 6 At least that is how I understand it, I don't really have a lot of knowledge about locks - just approaching from logical process of elimination and engineering knowledge.

[@steepfrugut]

I don't follow, how would one know which working depth of the pin was the master? For example, slot one is keyed so the pn and the wafer are below the sheer line, but slot 2 is set so the wafer is above the sheer line. How would one know which one the maser key would utilize?

[@DeviantOllam]

If you know shear line depths that *aren't* the master key (because they are visible on a change key) then you can eliminate those.

[@steepfrugut]

@@DeviantOllam Ahh ok, so to clarify, a master key will not have the same shear line depth on any of the cuts? Also thank you for the quick reply!

[@colinbyerly5212]

Thank you , great Topic .

[@blueskiesjazz]

Some of Matt Blaze's newest work is on Stingrays... I used to set my laptop on both of the stingrays he had in the security lab at Penn... hahaha...

[@davefranz8766]

I have hudson motor car company yale padlock and have the GGM im going to use this trick in your video i call it FISHING to get the change key for my lock. Hopefully there will be only two pins per barrel a bottom a master. Once i have the codes i can go to my locksmith and have him code cut me the change key. Had an old best lawrance warehouse company lock that had bakelite plugs in the core some one gave me the control & top master key codes ,used my blue punch to go fishing and was able to get the change key .Had to waste 6 cheap keys for this. Cut my change ,ctrl,tm on best factory blanks. Sometimes they cross key which is annoying you end up with two change keys because one barrel has two master pins in it[hate this]

[@r4dios1lence92]

About that contest, I wonder if people just went and bought a lot of keys and then traded repeats over.

[@IIVQ]

I loved this presentation! I have a few one-door keys for the company I work at, including one for a door that doesn't exist anymore, but I lack a few for doors that I actually use. The local branch office head is willing to give me a master key, but couldn't duplicate one because the master certificate "had been lost" (yeah, I know). I managed to get temporary access to the master key and by holding it next to my keys, I noticed that the master had higher bitting values (deeper cuts) for all pins where they deviated from each of the keys I had. This makes it easy to create a master from a low-level key (which has shallower cuts) by filing it down (one can't file up, unless you braze the key and re-cut your keyway profile, but then procuring a blank would probably be easier). Is there any reason why this was done? Wouldn't you be more secure from filing back normal keys to a master by having the master have less deep cuts? Or is filing low-level keys not a thing locksmiths care about when designing a system? I actually had a micrometer in my backpack to measure this master key's bitting and file it at home, when someone who left this branch and transferred his master key to me, so the need to cut myself a key has vanished, but I might still try it for fun.

[@DeviantOllam]

nice Discovery! :-) And you are right, this is not a conventional way of building a master system. Typically, the top master key bitting values will include a mix of high and low it in cats so that some are above and some are below the bitting values of most if not all of the change keys in the entire system.

[@monad_tcp]

31:43 I like the chinese method, just have one key for each lock and carry a big keychain.

[@Randy14512]

Just read Matt Blaze's paper, fairly short. I have watched this video multiple times because I enjoy the puzzle aspect of the attack but Deviant I found that actually reading the paper gave me a much more in-depth understanding on the attack. I hope that I can one day put this knowledge to good use, but not sure were... Maybe when I become a teacher and the school is looking at potential security flaws, IDK. But what I do know is that security through obscurity isn't the answer and intend to attempt to make myself and others I know safer through learning this great information as well as the information from the many other talks of yours I've seen.

[@wsvitak]

Put him up against the lock picking lawyer

[@knghtbrd]

Deviant Ollam and LPL have done videos together. LPL was there to learn. Deviant doesn't usually waste a lot of time picking locks. He decode, bypasses, disables, or avoids them more often than he picks them.

[@Treblaine]

Could you also make a master key just by LOOKING AT a few keys? If the bitting depth is printed on each key (as so many are) and you know that the bitting of a regular key is never going to be within 1 of a master-pin's bitting level then you can fill in the gaps. Wouldn't you then see a region where you'd have a row of three in bitting that no key used. Or at least, the more keys where you are able to read the bitting levels, the more time you will be able to save in exploratory cuts. How many keys would you need to get a look at to be 100% sure of what the master key's bitting is? Even if you couldn't read the bitting number printed on the key, you could just use a key gauge

[@christianbarnay2499]

Be careful that some key markings are not direct bitting codes but blind codes that need a codebook to translate into the corresponding bitting ( see en.wikipedia.org/wiki/Key_code ). That said, if you can get the bitting codes of several keys and accurately identify which are change keys (regular employee) and which are partial master keys (security agent, janitor) then you can first identify which positions are common to all keys and not mastered (like position 4 in the example of the video), then for the positions with varying values, you can cross out all values that appear on change keys and their neighbors. If there's only one value remaining, that's the master. If there's several remaining, you can look a partial masters for good candidates.

[@lbochtler]

What is the most secure lock out there? The EVVA MCS looks rather nice, but is there something more secure?

[@gammelhund]

Is there a con in sweden? It's hard to translate terms to search for.

[@2ttsi]

Wouldnt that magnetic key be vulnerable with some magnetic viewing film?

[@DeviantOllam]

well... magnetic viewing film shows magnetic fields, but not polarity. so you'd need to determine the north/south of things. and that's also possible, yes, but it does up the level of effort required somewhat.

[@ak_mayhemp8946]

I must of missed it, what rule is he referring to when he says "max/macs is violated?"

[@danielwendell542]

This refers to the maximum/minimum change you can have between adjacent bitting cuts; if you have too big a change, it make the key/lock not work well and causes some issues with use!

[@powner250]

If you have a large set of keys in a mastered system, can you use them to find out the bitting of the master key? if so how do you do this?

[@Notius]

I assume you would mostly use it to cut down the options. So if you had key A with 42643 that only opens door A and key X with 22463 that opens doors A, B, and C you could figure the different bittings (2_46_) are possible masters and make blank keys with those bittings and file down the last two to cut down on time.

[@wdy43di]

How did you determine what is the mastering depths?

[@DeviantOllam]

This attack is much more feasible if you are in possession of a change key or, at the very least, know it's bitting values. Because that low-authority key in a mastered system will *not* have master cuts on it. So the master depths are the ones you discover which are the opposite of the ones on a change key

[@patchbunny]

The links you show at 11:39 for crypto.com no longer work. They go to an electronic payment page for something called crypto.

[@Bushman4]

www.mattblaze.org/papers/mk.pdf www.mattblaze.org/masterkey.html

[@jamcdonald120]

with a disk detainer lock couldn't you make a quick adjust "skeleton key" that just has turnable section on it that can moved to a specific angle and then tightened with a tension screw? no filing needed and you should still be able to use this method to find the master key

[@jamcdonald120]

or with the "blank disk" option couldnt you do that in a low level pin tumbler lock too? just leave an empty hole?

[@JasperJanssen]

The keyway on good disc detainers isn’t big enough to build something like that.

[@Stewnat7299]

Do the pins fall down due to Gravity? If they had springs in them, would it be impossible to pick the lock because you have to pick them one at a time and the springs would just push the pin down each time you want to move on?

[@shura0107]

4 month old comment, but answering here in case anyone is wondering. Yes, the pins are pushed back down by springs. However, what lockpicking does is exploit the imperfections in a lock, in this case, the imperfection of the alignment of the pin chambers. In a perfect manufacturing process, the chambers of the plug would be perfectly aligned with the axis of the plug, and those are also perfectly aligned in the bible (the straight portion of the lock where the springs and driver pins reside). What happens in a lock in the real world, is those chambers are not perfectly aligned, so they bind when you force the plug to turn without a key, and they don't bind all at once, but in some sequence unique to the manufacturing tolerances that went into that lock. Which means one pin will bind before the others, and it can be lifted above the shear line, and the plug will turn just a little bit to keep the driver pin up while it binds on the next pin. Lockpicking exploits the manufacturing imperfections and tolerances of the lock. The better the manufacturing tolerances, the better the lock, but there's no way to have a perfect lock and maintain a large commercial production run. Drilling a series of holes that are aligned into a cylinder is hard, and the more precision means more cost. Some locks can have security pins that introduce the need for counter rotation when picking, which forces a picker to turn the plug back the opposite way in hope that they'll turn too much and cause pins that have been set before to become unset and need to be picked again.

[@dylanpicquet8149]

How get ahold off tool

[@icesoft1]

If the business you're penetrating uses an LFIC system (BEST lock, etc...), why not take a known key and raise the bitting to the 'Core change' depth. Pull the plug, and turn the operator

[@chrisdwalter]

Best is an SFIC (Small Format Interchangeable Core) as someone who has built them and uses them the "control key" could be higher or lower than the change or master key and you would need to know all 6 or 7 cuts before it would work. But if you have access to a single core you can open it and get the "Control Key" bitting and then yes pull the core and turn the actuator

[@Magiobiwan]

Is Ray's handcuff demo you mentioned available on KZbin? If it is, does anyone happen to have a link for it? Edit: found it, it was in the recommendation section

[@LeClaw]

hahaha at @ 27:39 "but they'll be dead soon....fucking kangaroos"

[@kyleb209]

What is the max that he’s referring to that could not be violated?

[@DeviantOllam]

MACS - Maximum Adjacent Cut Specification Basically, you can't have a super super shallow bitting cut on the key one position away from a super super deep cut. :-)

[@GigsTaggart]

@@DeviantOllam It's really cool that you still answer questions on 4 year old videos. I'm pretty sure that you have an identical twin brother and you guys both play deviant, because there is no way one guy can do all the multitudes of crazy shit you accomplish.

[@jamesfair9751]

DeviantOllam I was curious about alices key. A master key has to be a lower value than the non master key correct and as you said a one space master is way to thin and isn’t normally used so knowing these two things couldn’t you start out a lot closer to the master. Now I know a key will never be cut this way but for ease of reference let’s say alice key is cut 2-2-2-2-2. Now master has to be lower and more than one space could you not start out trying your master at 4-4-4-4-4

[@xn85d2]

@@jamesfair9751 No, the master can be lower or higher, and in a good system at least some will be higher.

[@dylanpicquet8149]

I'm thinking of be coming a locksmith

[@technosasquatchfilms]

I wish one of these cons would come to KC

[@DeviantOllam]

+technosasquatchfilms there used to be a BSides KC, not sure when it takes place or if it does any more

[@technosasquatchfilms]

+DeviantOllam Cool, I will have to look in to it. Thanks!

[@joetherev9257]

technosasquatchfilms uh

[@matthewsibley8942]

Well I wish I had this as a job.

[@thecaneater]

2:46 And those two rules... Stay safe. Stay legal.

[@arthurdent8091]

H, I loved the demo. A couple of questions if you don't mind: 1-What was the name of that keyway cutting machine, I couldn't find any listing so I assume that I miss-heard your pronunciation. 2- And can you name the source for the clamshell impressioning supplies, please? Thank you.

[@DeviantOllam]

I think perhaps I referenced our Ilco Ultracode. But Silca makes a great series of machines, too. Many brands do. The HPC Blitz is still the gold standard.

[@arthurdent8091]

@@DeviantOllam Thanks a lot for the good quality info and the speedy response.

[@arthurdent8091]

Thanks for the info. I knew that there had to be a "work-around" for proprietary keyways. Thanks.

[@Asdayasman]

Assuming you have surreptitious access to your own lock, can't you pick it to discover which pins have mastering, if not the mastering itself?

[@DeviantOllam]

1. Picking isn't surreptitious 2. picking doesn't tell you which is the master shearline and which is the user's change key shearline

[@NochSoEinKaddiFan]

Uuuuh, knowledge...*joink*

[@jermainerace4156]

My current key has two "zero" cuts, which is probably because it's a large apartment complex and maybe they ran out of other combinations?

[@DeviantOllam]

It could be, indeed. Very interesting. I've seen that before, so it's not insanely rare... but I wouldn't call it the most common thing to have.

[@TurkVladimir]

Thanks.

[@glenaw]

Not fully accurate with the way that manufacturers do their key cutting and how they list the number system. Best list their key bits from "Tip to Bow" while kwikset list theirs from "shoulder to tip." There are a few manufacturers that list the bittings from 1-0, 0 being the deepest and 1 being the shallowest while others like Schlage list the shallowest as being 0 and the deepest is 9. It all very depending on the manufacturer.

[@glenaw]

Intermediate Master Key? It is more commonly called sub masters. A typical master key system will have over 3,000 individual keys with over 1,500 sub masters. Which is the locksmiths job to not issue these keys unless required by the customer. You can have a cylinder that has a master wafer in each pin chamber. With a 6 pin system with a master wafer in each chamber will allow 32 different keys that will operate that one lock.

[@glenaw]

In a attempt to minimize the using of a existing key by taking a file to it is to use the shallowest cut in one of the positions on the Grand Master Key. This makes it a little more difficult to cut a customers key from being cut down to operate other doors since the position that's needed to be shallow is already cut deeper and therefore can not be made shallower.

[@BigDish101]

This is why I will not live in master keyed apartment complexes.

[@EdTube444]

BigDish101 I was taught to master locks at a complex i worked at. Took me a day to figure out how to use my lock if I lived there to make a master or approaches like this if I didnt

[@tylorbray]

If you have the key blank, and no leet haksaur skillz at lock picking, bumb key... it works.

[@MYKEYSAUTOMOTIVE]

Tylor B. Bumb key lol

[@rabidnative0000]

How does one even get into the pen testing industry?

[@narayannayak7364]

Master key name

[@skyjumper077]

Good locksmiths always make the master position the highest cuts so common users can't file down to a master cut.

[@kurogane2x]

So like for schlage you use more #9?

[@TheLukemcdaniel]

I know this is a few years old now, but for anyone else coming along, the links no longer work.

[@jfbeam]

www.mattblaze.org

[@harperevans6856]

This is the lockpicking lawyer. Today we have a lock from... click on one... 😂

[@TOASTEngineer]

I know this talk is old but, about 'restricted blanks'... couldn't ya just 3D print the damn thing?

[@DeviantOllam]

That is an incredibly plausible option, as well, yes.

[@dinoscheidt]

Since you’re here, how did you do the lock animations? Just ppt or some more fancy after effects composition? Since its 4 years old - back than vs now

[@kin2naruto]

And... you would get a very fragile piece of plastic that would break off in the lock.

[@RaketenKuhGewehr]

Depends on the kind of plastic you are using and your printers settings. You can absolutely print a key without having to worry about it snapping straight away. It wouldn't be a lasting solution, but for getting through a door once or twice, it works.

[@sword7166]

Don't forget that you could use a 3d print to cast a key out of metal

[@uncleben8895]

Well how would I get someone to copy my key but leave one of the values at 0. I don't know a locksmith who would do that. :D

[@brewmp]

buy your own blanks

[@MarkH10]

you file each cut on all keys. You only buy blanks.

[@bored588]

you dont need 0s, for most locks you will not see a 0. just get a key with 1's and start there, if they ask, say you made a lock with all 1's because its your hobby

[@InsideOfMyOwnMind]

Geez, all she had to do was go down on the janitor.

[@namvet6970bd]

I am a combat disabled veteran getting intron lock smithing..and lock picking master keying..is there software for master keying...any help would be greatly appreciated

[@joshbuilds]

I love my school most the doors you can pop open with a wire

[@karenwest6350]

Watching this talk, realizing that the links at 11:40 don't go anywhere because of the stupid nft people makes me very sad.

[@JanR1995]

Basically just brute force.

[@DeviantOllam]

Heh, well... Brute force in a logical sense, not a physical one. ;-)

[@JanR1995]

@@DeviantOllam Ahh, jea! Of cause! Never thought about it in the physical meaning :-D

[@Sam_420]

8:45 idk he’s reaction was funny

[@stampydragon2739]

I use master wafers and t pins to create a lock picking trap

[@warzieros]

Deviant, I want to be like you! You're too 1337! Would you ever take on an apprentice, or student, or intern? Where do I apply? What prerequisites or credentials do I need to achieve this???

[@beastboy0078]

I want to get into the "Hecker" community. Is there a official website/Fourm out there?

[@davidwarren719]

Or Alice could just bite her lip at Bob, and distract him long enough to get a look at his master key 😜

[@jsd05]

Nothing on one, nothing on two, nothing on three, small click out of four, nothing on five

[@666Tomato666]

He's such a toool!

[@JayLang7]

His name is really Deviant? Or it’s just a nickname??

[@noobpro9759]

He looks kind of like Jonah hill without the annoying voice.

[@sergiosalazar6806]

Para que sirve esta llave este agueonado no le entiendo nada no cacho que chucha habla esta agueonado de la cabeza debería dar una conferencia de prensa

[@LogicBob]

Oh, LOL! Ignore my question on your other video =)

[@GottSegneDich]

😂😂😂😂

[@archangel20031]

Both www.crypto.com/papers/mk.pdf www.crypto.com/masterkey.html No longer work.

[@jort93z]

I didn't actually know they have club mate in the US.

[@jamcdonald120]

wouldnt you not need to check pins cuts that violate MACS? the lock shouldnt be keyed to violate MACS right?