Hack Simple
Here at Hackaday, we definitely love to celebrate the hard hacks: the insane feats of reverse engineering, the physics-defying flights of fancy, or the abuse of cutting edge technology. But …read more Continue reading Hack Simple
Category Archives: mqtt
How does the MITM attack work when a client does not check the hostname vs the certificate? [duplicate]
One of the Paho MQTT client SSL options allows checking whether "a certificate matches the given host name.". If I enable this option then I cannot establish a TLS connection to MQTT using an IP address. In case it is relevant: t… Continue reading How does the MITM attack work when a client does not check the hostname vs the certificate? [duplicate]
SSL handshake failure | Client hello(success) -> Server ACK (success) -> server RST (connection closed)
I was running MQTT broker in my pc and tried to connect to it via mqtt client in same PC. using x509 cert for mutual tls. SSL Handshake was failing with RST from server. This was happening only in my PC.
When I tried to do the same setup i… Continue reading SSL handshake failure | Client hello(success) -> Server ACK (success) -> server RST (connection closed)
ESP8266 Coaster Keeps Your Drink Warm
Looking for the perfect winter desk accessory? [Wq] has created a beautiful coaster made out of PCBs that can keep your drink warm with an internal heater. (Chinese). An ESP8266 …read more Continue reading ESP8266 Coaster Keeps Your Drink Warm
Arduino Library Brings rtl_433 to the ESP32
If you have an RTL-SDR compatible radio there’s an excellent chance you’ve heard of the rtl_433 project, which lets you receive and decode signals from an ever-expanding list of supported …read more Continue reading Arduino Library Brings rtl_433 to the ESP32
My OpenSSL certificates fail with Mosquitto [migrated]
I am trying to automate the creation of certificates, using the steps from a StackOverflow answer here.
These are the commands I’m trying:
openssl genrsa -des3 -out ca.key 2048
openssl req -new -key ca.key -out ca-cert-request.csr -sha256… Continue reading My OpenSSL certificates fail with Mosquitto [migrated]
Weasley Clock For Magically Low Cost
For those unfamiliar with the details of the expansive work of fiction of Harry Potter, it did introduce a few ideas that have really stuck in the collective conscious. Besides …read more Continue reading Weasley Clock For Magically Low Cost
Trigger Your Home Automation Routines With Home Buttons
Home automation systems are all well and good, so long as the person who built it all is around to drive it. Let’s face it, they’re quite often a complex …read more Continue reading Trigger Your Home Automation Routines With Home Buttons
This Pico-W IoT Starter Project Gets You Into Home Assistant Quick As A Flash
Many of us hacker types with some hardware knowledge and a smattering of embedded experience would like to get into home automation, but there can be quite a learning curve. …read more Continue reading This Pico-W IoT Starter Project Gets You Into Home Assistant Quick As A Flash
Is This The Oldest Open Source HVAC Project In Existence?
Homebrew HVAC systems are one of those projects that take such a big investment of time, effort and money that you’ve got to be a really dedicated (ideally home-owning) hacker …read more Continue reading Is This The Oldest Open Source HVAC Project In Existence?