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3D-Printable BusKill Prototype Demo
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3D-Printable BusKill Prototype Demo

Today we're ecstatic to publish our first demo showing a homemade BusKill Cable (in the prototype 3D-printed case) triggering a lockscreen.

[BusKill] 3D Printable Dead Man Switch (Demo)

While we do what we can to allow at-risk folks to purchase BusKill cables anonymously, there is always the risk of interdiction.

We don’t consider hologram stickers or tamper-evident tape/crisps/glitter to be sufficient solutions to supply-chain security. Rather, the solution to these attacks is to build open-source, easily inspectable hardware whose integrity can be validated without damaging the device and without sophisticated technology.

Actually, the best way to confirm the integrity of your hardware is to build it yourself. Fortunately, BusKill doesn't have any circuit boards, microcontrollers, or silicon; it's trivial to print your own BusKill cable -- which is essentially a USB extension cable with a magnetic breakaway in the middle

Mitigating interdiction via 3D printing is one of many reasons that Melanie Allen has been diligently working on prototyping a 3D-printable BusKill cable this year. In this article, we hope to showcase her progress and provide you with some OpenSCAD and .stl files you can use to build your own version of the prototype, if you want to help us test and improve the design.

ⓘ Note: This post is adapted from its original article on Melanie Allen's blog.

Demo


In our last update, I showed a video demo where I succesfully triggered a lockscreen using a BusKill prototype without the 3D-printed body for the case and N35 disc magnets. I realized that the N35 disc magnets were not strong enough. In this update, I show a demo with the prototype built inside a 3D-printed case and with (stronger) N42 and N52 cube magnets.

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BusKill Onion Service

Today, we're happpy to announce that there’s a new way to browse our website more securely and anonymously. To do it, you’ll need a bit of software called the Tor Browser

After the Tor Browser is installed, copy and paste this URL into the address bar to load this website:

buskillvampfih2iucxhit3qp36i2zzql3u6pmkeafvlxs3tlmot5yad.onion


buskillvamp fih2iucxhit
3qp36i2zzql 3u6pmkeafvl
xs3tlmot5ya     d.onion

Besides the obvious anonymity benefits--allowing our customers to purchase our products anonymously--we chose to make our website accessible at the above .onion address to take advantage of tor's superior Public Key Infrastructure to the clearnet's flawed x509 model (read: it's more secure).

Visit this site now on our tor .onion address

Instead of using the untrustworthy X.509 PKI model, all connections to a v3 .onion address is made to a single pinned certificate that is directly correlated to the domain itself (the domain is just a hash of the public key + some metadata). Moreover, some of the most secure operating systems send all the user's Internet traffic through the Tor network -- for the ultimate data security & privacy of its users.

In short, users are much safer when communicating directly to a website using a .onion domain than its clearnet domain.

We've always made sure that our site's content was fully accessible to Tor Browser on strict mode. Unlike other popular websites, we would never use Google reCAPTCHA or blanket block Tor exit nodes.

We want and encourage our customers to be able to use all of our services over Tor. And by adding our service over an Onion Service, our customers with a healthy distrust for the X.509 PKI can take comfort in knowing that accessing our website through our Onion Service address will give them end-to-end encryption using our Tor-generated certificate.

You can buy a BusKill cable with bitcoin, monero, and other altcoins directly from our BusKill Store's Onion Site:

You can also buy a BusKill cable with bitcoin, monero, and other altcoins directly from our Clearnet BusKill Store:

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