DEF CON 25 - Nathan Seidle - Open Source Safe Cracking Robots

[@Frosty-oj6hw]

Really loved being in the audience, not only was it a great talk but when the safe is cracked at 25:38 the reaction is absolutely immense, the camera doesn't catch just how much noise people were making in that room. Great stuff.

[@erlitedev8694]

That was the safe ticking. Not snoring.

[@dobknocks]

No problem idiot!

[@wtb9613]

Was a absolutely great moment when the safe opened,even when watching just the video. Awesome video

[@banksarenotyourfriends]

In case anyone was wondering; a lot of modern safes use plastic discs because metal discs can be seen using an X-ray scanner similar to those used to scan your luggage at airports - but as Nathan Seidle said, there's no safe that's inpenetrable, it's just a case of what kind of attack you want to protect yourself from. This kind of attack is so common that combination locks that successfully mitigate radiological attacks have their own distinct Underwriter's Labs security grade - 'Group 1R'. The other option if you don't want to use plastic discs is to surround the lock mechanism within a lead enclosure, particularly if you wanted the safe to be "fire-proof". Great talk, thanks for uploading :)

[@miallo]

Why don't they use metal wheels but with true gates at every position and fill them in all but one slot with plastic? Then all gates would have the same width and they were out of metal

[@RMB123]

专业

[@ouou456]

This is awesome. I love that I'm seeing more and more hardware on these talks. Gotta break my soldering iron back out some time.

[@sleaf6]

A fantastic presentation, also, that fast crack

[@Syncopator]

You should be able to reduce the search space further by learning what limits there are on successive digits. For example, I would think that no safe is going to use the same combination number twice in a row? Such as 42-42-95 or 7-72-72, etc. Given the way the discs interact, you may be able to determine how close neighboring combination digits could possibly be, and eliminate all tries where successive digits are too close to each other.

[@wtb9613]

Why should you not use a number twice for your safe? You are in a position where you believe no one will use such attacks against your safe so even using a number 3 times as a user is as possible as using any other combination in my opinion. Sorry if im missing out something or you speak about technical details the safe does use. I understood it as you meant the combination someone would use where double or digits seem unlikely

[@Syncopator]

@@wtb9613 Rotary combination locks ofteh have you turn right to the first number, left to the second, and right again for the third. In that case, 42-42-95 would not actually have a turn for the second number because the dial would already be on that number. Different types of combination locks may not have that problem, but some of the classic rotary-dial combinations do.

[@wtb9613]

@@Syncopator Aaalright, yeah thats makes sense. Thanks mate.

[@familyguy5081]

Nice. I was here as well. Didn’t know they posted a video. Cool!

[@supernewf3722]

The S&G 6730 can be off bye 1 or 2 numbers and still work.Im a locksmith for the banking industry.Brilliant gadget you came up with 😁

[@St0ner1995]

that was amazing timing

[@hernancoronel]

I really like the idea of listening to the disks... you could reduce the attack time to almost nothing once you know what to listen for...

[@breebw]

I didn't realize Prince William, Duke of Cambridge, was so into tech.

[@DarkDragowolfXXX]

can you please upload all the lectures they are really intresting!

[@CarterColeisInfamous]

i love sparkfun yall rock!

[@shortcutDJ]

Nathan, that shirt. i can't take my eyes of of it.

[@hernancoronel]

Seinfeld’s puffy shirt? LOL!

[@DN-zh1bv]

it's a gordon gartrail

[@Cray2TheZ]

WHAT A BOSS!

[@ceebs648]

Who the hell disliked this???

[@mollekake]

Manufacturers

[@geraldellis1177]

def con 25!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@MazeFrame]

Nice one!

[@jovanjanevski3747]

Perfect.

[@DaveGrantTR]

This was awesome

[@noir7565]

Is this not the same as Samy Kamkar's Combo Breaker?

[@brandonsaffell4100]

As far as I can tell it's the exact same, but on a bigger scale. There may be some differences in reducing the number of test cases.

[@over00lordunknown12]

I personally prefer having a shit red drill hanging on the front, or four C4 Charges, to get "my" safes open... (Reference) 8:10PM 8/8/2017

[@Wereld03]

over00lord Unknown pd2 reference?

[@MattJohnVO]

Don't Act Dumb

[@over00lordunknown12]

+ayoungcoder Yep, hit it on the nose, also, I like the name! :) 2:22AM 8/14/2017

[@over00lordunknown12]

+Cheeser100 *Hostage Lays Back Down*

[@ablanchi]

Fuckin Awesome!

[@superscatboy]

That bread is too wide and I'm triggered.

[@Doggo420]

Payday time

[@samiraperi467]

*** no rule to make sandwich. stop.

[@tedmosby9409]

sentry safes are garbage

[@barryownt]

First