Data Encryption on Firefox Send « irq5.io
If you haven’t heard, Firefox Send is a service that solves the problem of sending large attachments without going through email. It does this in a privacy-preserving manner by encrypting the…| irq5.io
Some painters came over to give my house a new coat of paint for the new year, and in the process wrecked my vintage bathroom mirror. We have what’s called a tilting mirror or pivot mirror in the bathroom area, which we have been using for at least 50 years in the household. We adjust […]| irq5.io
The advantage of Zigbee devices is that they are very low power, and they communicate in a wireless mesh network. The sensors are small and can work off a CR2032 coin cell for at least 2 years, maybe more. Depending on the type of sensor, they cost around US$10 and are readily available from various […]| irq5.io
I was looking at trying to securely implement a door access control system. This usually involves some kind of card that you tap at a reader and the door unlocks. Because it uses NFC, the NFC reader and electronics can be located safely on the inside, leaving no exposed DIY electronics on the outside for […]| irq5.io
As I have mentioned in the review, the stock firmware on the Xiaomi AX3600 wireless router is extremely limiting. On top of that, the firmware is also locked to install only authorized updates from the manufacturer. If you have been following the blog, you will know that I like the flexibility that ASUSWRT provides for […]| irq5.io
I recently bought the Xiaomi AIoT AX3600 wireless router to experience WiFi 6 (or 802.11ax). This WiFi 6 router has been touted as having very good hardware specs for under US$100. After checking out a few reviews, it looked like you could achieve close to Gigabit speeds over a wireless link, which was pretty exciting. […]| irq5.io
It is easy to script analysis steps with IDAPython, but now we want to automate this analysis over, let’s say, 10,000 files. I did a quick Google and I couldn’t find a guide on how to perform batch binary analysis tasks by automating IDA Pro 7.x. Unfamiliar with this, I was constantly guessing whether it […]| irq5.io
I’ve recently seen some shell script that tries to test for your OS architecture by running executables encoded within. There’s one for i386 (x86 platforms) and a few for ARM variants. What is terrible (well, to me at least) is that these executables are huge: For one, I’m not sure why inspecting /proc/cpuinfo or uname […]| irq5.io
collectd has always been able to grab interface traffic statistics from Linux. But what if we want to collect data about individual WiFi clients that connect to it? How much bandwidth is each of the clients using? That information is already being recorded by the wireless driver; all we need to do is to query […]| irq5.io
I have been using collectd on my server to monitor traffic (inbound, outbound and to/from the Internet), as well as disk stats because it’s being used as a NAS. So far it has been helpful, observing various graphs to understand patterns, and detecting problems when they happen. I’m also recording video from a WiFi camera, […]| irq5.io
If you haven’t heard, Firefox Send is a service that solves the problem of sending large attachments without going through email. It does this in a privacy-preserving manner by encrypting the…| irq5.io
