Beating the BiLock

[datagram]

New article on LP Forensics today:

# Beating the BiLock

This paper discusses the history and operating principles of the Australian BiLock series of locks. This includes the First Generation, New Generation, and Quick Change removable core designs. In addition, attack techniques against BiLock systems are evaluated, including some newly released decoding vulnerabilities.

http://www.lockpickingforensics.com/articles.php

or

http://www.lockpickingforensics.com/articles/bilock.pdf

dg

[MacGyver101]

Still reading my way through it... but, as always, a fantastic write-up: thanks (to both you and JK) for taking the time to research, write and share all of this!

[mh]

indeed, very well written!

[globallockytoo]

very well written and compliments to all those involved.

While you don't denigrate the product, it is obvious that your research and conclusions appear to support the reasonableness of the quality and security of the product compared to other manufacturers in it's class.

[vov35]

Excellent paper. I like this site's heavy use of images, provides great clarity. I understand bilock function better than ever before, now.

[Schuyler]

like a boss

[SnowyBoy]

Some images of a cutaway BiLock to show the pins in situ

http://img152.imageshack.us/img152/4324/cimg6925.jpg
http://img684.imageshack.us/img684/5793/cimg6924.jpg
http://img140.imageshack.us/img140/9387/cimg6923.jpg
http://img137.imageshack.us/img137/2923/cimg6922.jpg
http://img525.imageshack.us/img525/2846/cimg6921.jpg
http://img690.imageshack.us/img690/1771/cimg6920.jpg

[lockinabox]

All lies!! Everything in that paper is not true!!


Play nice lockinabox, we're getting complaint emails about your wicked sense of humor... and to the person who submitted the complaint, watch it with the "maybe I should buy a gun and find him" chatter, its only an internet forum, get over it already.

-Squelchtone

[Squelchtone]

Medeco Cam Lock: The Worlds First and Oldest True Bump Proof Pin Tumbler System!

[Please don't bypass the swear filter] it's not a pin tumbler and neither is the bilock.
Neither uses pin stacks.... ffs. And the pin tumbler mechanism is inherently bumpable...

[Squelchtone]

Medeco Cam Lock: The Worlds First and Oldest True Bump Proof Pin Tumbler System!

[please don't bypass the swear filter] it's not a pin tumbler and neither is the bilock.
Neither uses pin stacks.... ffs. And the pin tumbler mechanism is inherently bumpable...

OR you could say something nice about the paper instead of splitting hairs. you guys are worse than the nerds on radioreference.com who fight about the channel bandwidth on commercial FM transmitters.. (fake example: "oh no its not 200 KHz, its 200.000015 KHz, you're soooo wrong and stupid".

Medeco and BiLock may not have traditional pin stacks with a key pin, driver pin, and spring, but they are in fact pin tumbler locks. They sure as heck aren't dimple, nor are they lever locks. When being pinned up you drop cylindrical pins (read: tumblers) into them in order to pin the up, the fact the key pin does all the work without the need of a driver pin above it is just splitting hairs, and getting into such minute nuances, only internet nerds, know it alls, or Star Trek fans would bother making that distinction.

Perhaps you need a paradigm shift or to not see lock mechanisms in such black and white. There will always be some weird variant, but I think it's just too much to start putting them in their own boutique categories like "axially oriented sidebar lock with vertical true and false gates" that's crazy talk.

Squelchtone

[JK_the_CJer]

Say it with me now....driverless...very good

[vov35]

I quite enjoyed the paper... it just bothers me that people call it a bump proof pin tumbler because that implies having the same mechanism.

[Squelchtone]

I quite enjoyed the paper... it just bothers me that people call it a bump proof pin tumbler because that implies having the same mechanism.

I hear ya man, all that signature jazz is an old flame ware/feud that went on a few months back in one of the threads.. half joke/half serious business. Read out of context, it can be taken the wrong way.

Squelchtone

[datagram]

I don't like calling them pin-tumblers, either --- I specifically avoid this in the paper. "Pin based" sidebar lock is what I prefer, and, to me, what seems most appropriate.

dg

[vov35]

I was considering the vulnerabilities in destructive bypass... don't quite a few locks have brass sidebar finger pins? Wouldn't medeco camlocks be vulnerable to the same shearing attack with a handful of steel blanks with angled tips? Other sidebar locks come to mind, but I'm not sure if their sidebars are brass...

Or is it something in particular about the bilock that makes this attack possible?