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132 Following
90 Posts

Brazilian student. Cybersecurity & IoT nerd.

Opinionated in a funky-fresh, nerdy, non edgy kinda way.

Sorry about the longposting on main.

Interested in #blackculture, #linux, #c, #embedded, #computerengineering, #cats and the other great things about life.

GitHubhttps://github.com/JoaoNasMonteiro
Moodboard

Happy Birthday, Whitfield Diffie! Diffie received the 2015 #ACMTuringAward for inventing and promulgating both asymmetric public-key cryptography, including its application to digital signatures, and a practical cryptographic key-exchange method.

Diffie says the counterculture of the 1960’s inspired his interest in cryptography. Watch him explain: https://youtu.be/d820zuDbYIg

#ACM #Computing #TuringAward #ComputerScience #Encryption #Cryptography #Cryptographic #Pioneer #AI #Counterculture

Insect that never remembers lyrics: Humbug,
Today's IT project was to install an MQTT broker on my #SelfHosting #HomeLab. After a bit of shenanigans with DNS and certificates I've got it working. I'm using the Caddy proxy to generate me a certificate, and a shell script to copy the certificate to my docker host for use by the #Mosquitto #MQTT broker. My router and DNS server make sure the messages end up on the docker host, and a test application on my home desktop is able to subscribe and receive messages from the broker.

The real fun starts now... writing an app that receives my location data from #OwnTracks on my phone, stores it in a database, and ultimately does all sorts of pretty geospatial stuff.
this is how your email finds me

A small list of #bad #programming #jokes to put on tshirts that i've been maintaining for the last few weeks.

Focused on #C and #security stuff lol

she malloc on my heap till i leak

(deep fried bill gates)
"in this house we pass unsanitized user input into ShellExecuteExW()"

(void*)
trust me bro

***ptr
I know a guy that knows a guy...

(post-irony meme of boy with sunglasses)
yeah, I am a bad boy, how could you tell?
"sudo wget | bash"

gaslight git rebase -i HEAD~5
gatekeep git commit --amend --no-edit
girlbboss git push origin main --force

(post-irony 2000's wordart aesthetic)
born to segfault, forced to borrow check

sanitizing inputs is a violation of my free speech

Fuzzer? I barely know her!
(alternatively)
Buffer? I barely know her!

Baby, are you a dangling pointer?
Cuz imma using you after free tonite.

I do not consent to your memory safety laws.
I AM A SOVEREIGN CITIZEN OF THE HEAP.
GOD GAVE US unsafe{} SO BY JESUS I AM GOING TO USE IT

I WILL memset(0) YOUR ENTIRE BLOODLINE

Look at this thing I've made!

https://github.com/JoaoNasMonteiro/bitmath

It is actually a transpiler from the weird c-like syntax for bitllevel operations that exists in my brain to code that the LuaJIT interpreter actually understands and can evaluate, displayed in a well-aligned manner right inside the text editor.

#neovim #plugin #lowlevel #math

actually my coding assistant *is* certified to give medical advice. that's why it's called AGENTS.*md*

Gaslight
Gatekeep
Girlboss

#git #badjoke #programming

Andrew "buinnie" Huang's Dabao, which I wrote about back in January, is now crowdfunding: under $10 (plus shipping, admittedly) for a microcontroller board built around the Baochip-1x - a #RISCV part with "mostly open RTL," and packaged in a way you can peer beneath the silicon's surface with an infrared torch and a modified inspection camera.

https://www.hackster.io/news/andrew-bunnie-huang-opens-crowdfunding-for-the-radically-open-dabao-baochip-1x-dev-board-be3fc5add565

#Technology #News #Hackster #OpenSilicon #OpenHardware #Microcontroller

Andrew "bunnie" Huang Opens Crowdfunding for the Radically Open Dabao Baochip-1x Dev Board

Board promises RTL and Verilog sources all the way through to a chip you can peel back with an infrared lamp and an inspection camera.

Hackster.io
The only downside is that it made me install #npm on my machine >.>