The return of ex-president: Krypto-Kekkonen

Visual cryptogrphy hiding piece of history

Visual cryptography that hides a piece of history

Due to recent events in world politics, I decided to take a look back and make an implementation of 3D-printed visual cryptography. There were some challenges as original model was designed for printing onto overhead transparencies, which are pretty much obsolete tech today.

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$25 WiFi Webcam from China – I am livin’ on the edge!

Rock on – what could possibly go wrong with cheapest-possible piece of equipment that is designed to capture both sound and video, is made in China and costs about 25 USD, and comes with real internet connectivity – you know: cloud backends and all.

So, I went off to dig some more blood from my nose. I bought one – no, I bought three Xiaomi Xiaoyi Ants web cameras, and went to see what’s inside and how (in)secure they are. Continue reading

My Air Purifier is in the Internet – should I be worried?

Typical IoT system level components

Typical IoT system level components

It is 2016 and everything is connected to internet in a way or another, what’s the big fuzz about privacy and security of these little devices? After all we have made consumer gadgets since ages, and one in a while malfunction or vulnerability gets discovered and shotly it gets fixed, right?

By looking closely at some of my connected devices, I found interesting stuff that has gone largely unnoticed. And more interesting is to come, for reasons I am about to explain.

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