Lock Picking 101 Forum
A community dedicated to the fun and ethical hobby of lock picking.
       

Lock Picking 101 Home
Login
Profile
Members
Forum Rules
Frequent Forum Questions
SEARCH
View New Posts
View Active Topics


Live Chat on Discord
LP101 Forum Chat
Keypicking Forum Chat
Reddit r/lockpicking Chat



Learn How to Pick Locks
FAQs & General Questions
Got Beginner Questions?
Pick-Fu [Intermediate Level]


Ask a Locksmith
This Old Lock
This Old Safe
What Lock Should I Buy?



Hardware
Locks
Lock Patents
Lock Picks
Lock Bumping
Lock Impressioning
Lock Pick Guns, Snappers
European Locks & Picks
The Machine Shop
The Open Source Lock
Handcuffs


Member Spotlight
Member Introductions
Member Lock Collections
Member Social Media


Off Topic
General Chatter
Other Puzzles


Locksmith Business Info
Training & Licensing
Running a Business
Keyways & Key Blanks
Key Machines
Master Keyed Systems
Closers and Crash Bars
Life Safety Compliance
Electronic Locks & Access
Locksmith Supplies
Locksmith Lounge


Buy Sell Trade
Buy - Sell - Trade
It came from Ebay!


Advanced Topics
Membership Information
Special Access Required:
High Security Locks
Vending Locks
Advanced Lock Pick Tools
Bypass Techniques
Safes & Safe Locks
Automotive Entry & Tools
Advanced Buy/Sell/Trade


Locksport Groups
Locksport Local
Chapter President's Office
Locksport Board Room
 

custom top pins

TOSL Project. A community project to "build a better mousetrap".

Re: custom top pins

Postby dls » 25 Mar 2011 15:02

Ok
Firstly if the pin is deep in the lock it would not see the full heat of say boiling water as the mass of the metal would absorb and dissapate much of the heat like stiring a cup of coffee with a spoon the handle remains reasonably cold to hold.
Secondly i never discussed the type of plastic. It could be teflon which is highly resistant to both heat and chemical attack its used in frying pans where it sees very hot oil.
Obviously the pin is unconventional sorry about that but thats whats important in this type of design if you stick to conventional designs they you are also sticking to their bypass methods ie. picking and bumping.
Only a small portion of any community will probably want a high security lock and a small number of these will want this one so the freezing problem is probably a minor one as many people who are truly serious about security will probable call in the professionals or ask their advice
When picking starts to hurt take your finger out
dls
 
Posts: 283
Joined: 10 Mar 2011 16:57
Location: ireland

Re: custom top pins

Postby vov35 » 25 Mar 2011 19:03

you should place the plastic component in the top of a pin for your disc lock design, there it would resist impressioning without being exposed to much wear....
The BiLock isn't the first bump proof pin tumbler because it isn't a pin tumbler.
And it's called a shear line, not a "sheerline".
vov35
 
Posts: 229
Joined: 29 Sep 2010 15:13

Re: custom top pins

Postby dls » 25 Mar 2011 19:18

i dont think the plastic pin would work in the wafer design however some sort of antipick should be included even if we think it has some resistance to picking or not certain experts will tell you it can be picked if it has no security features even if the design is safe
When picking starts to hurt take your finger out
dls
 
Posts: 283
Joined: 10 Mar 2011 16:57
Location: ireland

Re: custom top pins

Postby vov35 » 25 Mar 2011 21:29

dls wrote:i dont think the plastic pin would work in the wafer design however some sort of antipick should be included even if we think it has some resistance to picking or not certain experts will tell you it can be picked if it has no security features even if the design is safe


If it has false gates, I wouldn't worry about that. The pins in your design should be smooth for smooth operation.

I think the plastic pin would work to prevent impressioning, which is the only remaining vulnerability I see. There would be a simple layer of teflon at the point where the pin and disk interact, preventing that pin from being able to suitably mark a blank for impressioning.
The BiLock isn't the first bump proof pin tumbler because it isn't a pin tumbler.
And it's called a shear line, not a "sheerline".
vov35
 
Posts: 229
Joined: 29 Sep 2010 15:13

Re: custom top pins

Postby dls » 19 Apr 2011 17:23

I was thinking about the false gates issue and while they are there to prevent picking and decoding attacks they can also make these attacks easier, i use false sets on lever locks to determine true gates because in some cases as many manufacturers have standard positions for their false gates or a fixed number each side of a true gate, all you have to do is count the number of gates and find the middle one in this case.
There should be a degree of randomness in lock design to prevent this because if you know what to expect you are already half way there .
Having said all that i would still use them but have several variations in such a way that the attacker would not be able to tell a gate by counting the false gates reliably.
When picking starts to hurt take your finger out
dls
 
Posts: 283
Joined: 10 Mar 2011 16:57
Location: ireland

Re: custom top pins

Postby LocksmithArmy » 28 Jun 2011 13:43

Ive made security pins... picked home brewed security pins (mine and other peoples) and seen tons of great ideas...

BUT the best idea for a security pin BY FAR is:
http://www.youtube.com/watch?v=9tj7KN7ML4o

ill be making these before long.
LocksmithArmy
 
Posts: 989
Joined: 25 Jun 2009 22:14

Re: custom top pins

Postby Tyler J. Thomas » 28 Jun 2011 21:36

LocksmithArmy wrote:Ive made security pins... picked home brewed security pins (mine and other peoples) and seen tons of great ideas...

BUT the best idea for a security pin BY FAR is:
http://www.youtube.com/watch?v=9tj7KN7ML4o

ill be making these before long.


Billy B. Edwards Jr. detailed a method for beating any security via picking years ago. I'm nearly certain it would work on those, especially considering their solid bottom portion.

Use the backside of a pick to lift the pins as high as possible and apply heavy tension. Slowly release tension and individually probe each stack to attempt to free bottom pins from trapped upper pins.
Tyler J. Thomas
Supporter
Supporter
 
Posts: 1134
Joined: 13 Aug 2009 20:57
Location: Atlanta, GA, USA

Re: custom top pins

Postby LocksmithArmy » 29 Jun 2011 9:17

reverse picking may or may not work depending on the binding order...
for instance if you probe one and it shoots all the way down, dropping the driver aswell because another pin is binding harder than the one you probed.
hope thats understandable...

but imagine those as keypins aswell ;) (not sure if its possible but it would be really cool to rty and make keypins like that...)
LocksmithArmy
 
Posts: 989
Joined: 25 Jun 2009 22:14

Re: custom top pins

Postby Tyler J. Thomas » 29 Jun 2011 9:57

LocksmithArmy wrote:reverse picking may or may not work depending on the binding order...
for instance if you probe one and it shoots all the way down, dropping the driver aswell because another pin is binding harder than the one you probed.
hope thats understandable...

but imagine those as keypins aswell ;) (not sure if its possible but it would be really cool to rty and make keypins like that...)


Please, elaborate. What binding order would prevent it?
Tyler J. Thomas
Supporter
Supporter
 
Posts: 1134
Joined: 13 Aug 2009 20:57
Location: Atlanta, GA, USA

Re: custom top pins

Postby LocksmithArmy » 29 Jun 2011 16:47

imagine one pin grossly binds while all the others dont come clise to binding (for reasons like one pin chamber is smaller than the others by a more substantial ammount than normal) if you tried to bind them while they were all raised the pins that wernt binding would fall down... cause the other one is binding by itself... this could be on purpose by the manufacturer or just a low tolerance lock.an overlifting attack would still be defeated.

another senario, if you front pinsfall before you back pins (assuming nothing was binding first in the previous senario) and you were probing the back pins to encourage them to fall, the front pins themselves may ride up the shaft and tap the driver pins into submission and then y our stuck with the driver covering the sheer line...

reverse picking is not anywhere near as an exact sience as standard lockpicking... there are amillion reasons y it wont work for some if not most locks...

hrmm now i wanna do a vid on reverse picking.
LocksmithArmy
 
Posts: 989
Joined: 25 Jun 2009 22:14

Re: custom top pins

Postby LocksmithArmy » 29 Jun 2011 16:49

one more thing...

due to manufacturer error the driver could be smaller than the keypin... meaning just cause the keypin is binding and you probe it to fall... the driver might not catch on the sheer line, another keypin might bind (as its supposed to) but leave enough room for the driver to fall through the chamber freely... both keypin and driver fall together.
LocksmithArmy
 
Posts: 989
Joined: 25 Jun 2009 22:14

Re: custom top pins

Postby Tyler J. Thomas » 29 Jun 2011 17:22

LocksmithArmy wrote:imagine one pin grossly binds while all the others dont come clise to binding (for reasons like one pin chamber is smaller than the others by a more substantial ammount than normal) if you tried to bind them while they were all raised the pins that wernt binding would fall down... cause the other one is binding by itself... this could be on purpose by the manufacturer or just a low tolerance lock.an overlifting attack would still be defeated.


Considering that the tolerance difference between the pin and the holes are less than .001", I don't find your scenario plausible. Are you suggesting that the other 4, by some odd chance, were drilled larger? Did one drill bit shrink or did the other 4 grow? Haha.

Why couldn't you apply tension in the opposite direction?

If you're suggesting that large of a difference, you're really contorting reality to support your position. But, I see you make another point regarding the construction of cylinder parts later on so I'll go more in depth then.

another senario, if you front pinsfall before you back pins (assuming nothing was binding first in the previous senario) and you were probing the back pins to encourage them to fall, the front pins themselves may ride up the shaft and tap the driver pins into submission and then y our stuck with the driver covering the sheer line...


Again, you reverse your tension to pick the back pins first and then the front pins. Simple trial and error when picking a lock.

due to manufacturer error the driver could be smaller than the keypin... meaning just cause the keypin is binding and you probe it to fall... the driver might not catch on the sheer line, another keypin might bind (as its supposed to) but leave enough room for the driver to fall through the chamber freely... both keypin and driver fall together.


Have you ever seen the process used to create pins? It's fairly bullet proof in that the brass rods used to create the pins are measured prior to being cut to individual lengths. Also, are you aware that humans pin each and every lock prior to shipping them out? They're trained to spot faults in materials and design. Sidenote: I got to take a Kaba plant tour once. I thought I could pin a cylinder fast. I was humbled for life that day.

I simply cannot buy the above scenario as a plausible situation.

reverse picking is not anywhere near as an exact sience as standard lockpicking... there are amillion reasons y it wont work for some if not most locks...


Yet you only identified three. Two are so far-fetched that they don't warrant serious consideration; the other is easily handled.

Assuming a material fault could assist in the success rate of these pins, it would literally be a 1 in one-million sort of deal. So minuscule in comparison to the other 999,999 fault-less cylinders that it doesn't really equate when you realize that their are, presumably, only a handful of those security pins.
Tyler J. Thomas
Supporter
Supporter
 
Posts: 1134
Joined: 13 Aug 2009 20:57
Location: Atlanta, GA, USA

Re: custom top pins

Postby LocksmithArmy » 29 Jun 2011 18:09

so your saying revers picking works on all locks that dont have security keypins all the time...

if that were the case... there would be ALOT more topics abt it on here... its not a secret, i discuss it on my website an ther are no advanced picking techniques threads in the advanced section... alls im saying is holding up 10 pins and getting only the correct 5 to fall when you want is not as easy as you seem to think.

0.001 may be the difference between the pins and chambers... but having one chamber a hare more worn out than the other or having a pin a lil more worn down will make that difference greater. and 0.001 is fairly large if you consider one may only be 0.0005 different... now that one will bind first... cause the chamber is closer than the pin... in a perfect world all will bind at the same time and neither picking or reverse picking would work... my senarios arnt that far feched when you consider how minute differences makes picking possible, minute differences will also make reverse picking more difficult.

and while the technique may work on a lock with these security pins (or any other security pin) it also may not work for one lock or another reguardless or tension direction.

if this technique were as reliable as you seem to imply than it would be a far more popular technique. fact remains its just not as reliable a technique and due to imperfections in the manufactuing of the locks it dont always work... infact id say it fails more often than it works, atleast in my expieriences, granted i only try it on locks that im having problems spping.
LocksmithArmy
 
Posts: 989
Joined: 25 Jun 2009 22:14

Re: custom top pins

Postby Tyler J. Thomas » 29 Jun 2011 19:12

LocksmithArmy wrote:so your saying revers picking works on all locks that dont have security keypins all the time...


Where did I say that? I asked you to elaborate on why it wouldn't since you ruled out it's effectiveness in certain situations.

if that were the case... there would be ALOT more topics abt it on here... its not a secret, i discuss it on my website an ther are no advanced picking techniques threads in the advanced section... alls im saying is holding up 10 pins and getting only the correct 5 to fall when you want is not as easy as you seem to think.


Nice Occam's Razor.

0.001 may be the difference between the pins and chambers... but having one chamber a hare more worn out than the other or having a pin a lil more worn down will make that difference greater.


More distorted reality.

First, did you know locksmith's intentionally cause wear in a chamber? It's true. You reduce the tolerance to compensate for worn or miscut keys. The bi-product, of course, means it's easier to pick. But what's a few thousands of an inch when someone's determined to pick a lock? Nothing - so reduction of security is often groundless, but I digress.

Second, a worn pin will be reduced in length exponentially more than in diameter. I'm sure datagram can attest to this. The abrasiveness and interaction between the key and pins produce far, far more wear than the plug and the pin.

and 0.001 is fairly large if you consider one may only be 0.0005 different... now that one will bind first... cause the chamber is closer than the pin... in a perfect world all will bind at the same time and neither picking or reverse picking would work...


Congratulations, you've discovered how lock picking is made possible.

my senarios arnt that far feched when you consider how minute differences makes picking possible, minute differences will also make reverse picking more difficult.


Your scenarios did not deal with those minute differences but rather flaws in the production of cylinders. Remember when you purported errors between bottom and top pins? Or one chamber larger/smaller than the rest - so much so that it, according to you, essentially prevents reverse picking?

I can understand misaligned chambers or maybe tiny differences in pin or chamber size, but you're suggesting overly elaborate production flaws as if to fit your argument.

and while the technique may work on a lock with these security pins (or any other security pin) it also may not work for one lock or another reguardless or tension direction.


And now we're back to my original question, albeit in a different format: Please elaborate, why wouldn't it work?

if this technique were as reliable as you seem to imply than it would be a far more popular technique. fact remains its just not as reliable a technique and due to imperfections in the manufactuing of the locks it dont always work... infact id say it fails more often than it works, atleast in my expieriences, granted i only try it on locks that im having problems spping.


It's not a reliable technique? What do you base that off of? Your lack of success with it? The fact that's not discussed on here? Outstanding logic.

Have you ever stopped to think that a majority of lock's don't feature security pins? Does that mean they aren't reliable simply because they're not in the majority? That's your reasoning. Do you not see how ridiculous it is?

Reverse picking has it place, primarily on pin-tumbler locks with security pins. You wouldn't expect someone to reverse pick a standard set of bottom and top pins, would you? No, so their role is effectively reduced to cylinders with security pins which, as stated above, are not in the majority in the U.S. market. That's the reason it's not discussed more. It has a limited application when compared to the rest of picking techniques and that's not because it doesn't work.
Tyler J. Thomas
Supporter
Supporter
 
Posts: 1134
Joined: 13 Aug 2009 20:57
Location: Atlanta, GA, USA

Re: custom top pins

Postby LocksmithArmy » 29 Jun 2011 19:34

ofcourse i base my jugments on my expieriences with the technique you dont have to be rud about it...

if the technique works for every locks u come across go for it but i highly doubt thats the case... you say locks with security pins arnt abundant in the US but on a market like this forum just abot everyone here has locks with security pins and when a noob asks how to pick them they dont answer revers pick it... y is that... is it cause its hard to explain... no... its cause spp is far more reliable... the technique doesnt work as often as your arguing...
getting all smart and saying that its a gauranteed way to beat any security pin with no proof other than saying that any possible senerio i throw out is distorted logic wont make a case for you.

if you like it you use it... i use it from time to time... but find little success...
if you wanna prove thats how to beat that security pin... make some and do it... xeotech can show you how to make them... and where to get the parts...
LocksmithArmy
 
Posts: 989
Joined: 25 Jun 2009 22:14

PreviousNext

Return to The Open Source Lock

Who is online

Users browsing this forum: No registered users and 1 guest