Juan Cortés – Medium

Juan Cortés

Juan Cortés
in
ITNEXT

Steganography 101 — LSB Introduction with Python — Part 1

Hiding plaint text messages inside the RGB channels of a PNG image’s pixels

Oct 7, 2019

Steganography 101 — LSB Introduction with Python — Part 1

Oct 7, 2019

Juan Cortés
in
ITNEXT

Can you trust the author of your browser extensions?

A rant about permissions, karma, phishing, stealing, chrome extensions and how thin the skin of our privacy is.

Jul 18, 2018

Can you trust the author of your browser extensions?

Jul 18, 2018

Juan Cortés
in
ITNEXT

Standing up for CodeGolf, abusing the language you love, to learn more about it

Although I’m not going to disclose where the above code is used, let me tell you a little bit more about it. I was presented with a…

Jul 16, 2018

Standing up for CodeGolf, abusing the language you love, to learn more about it

Jul 16, 2018

Juan Cortés
in
ITNEXT

Unlocking WhatsApp’s hidden GIF provider (Giphy / Tenor) and exploring the code

After the overwhelming number of views I received on the previous story I decided I would pursue the topic of exploring WhatsApp’s…

Jul 10, 2018

Unlocking WhatsApp’s hidden GIF provider (Giphy / Tenor) and exploring the code

Jul 10, 2018

Juan Cortés
in
ITNEXT

Exploiting freely accessible WhatsApp data or “Why does WhatsApp web know my phone’s battery level?”

This all started with the title's simple question. I was aware that the desktop app communicated with the phone after the initial handshake…

Jul 8, 2018

Exploiting freely accessible WhatsApp data or “Why does WhatsApp web know my phone’s battery level?”

Jul 8, 2018

Juan Cortés
in
ITNEXT

JavaScript Closures, Memoization and Factories

A closure is the combination of a function and the lexical environment within which that function was declared¹.

Jun 28, 2018

JavaScript Closures, Memoization and Factories

Jun 28, 2018

Juan Cortés
in
ITNEXT

Hidden methods and data in JavaScript

A rant about preventing access to certain methods in our code and why that’s a good thing.

Jun 25, 2018

Hidden methods and data in JavaScript

Jun 25, 2018

Juan Cortés
in
ITNEXT

How I helped recover 5000XLM from RAM dumps, RegExp, and Patience

There I was, reading the titles of some of the posts on /r/Stellar when I stumbled upon this little calamity where /u/badusernam was…

Jan 30, 2018

How I helped recover 5000XLM from RAM dumps, RegExp, and Patience

Jan 30, 2018

Juan Cortés

Writing a chained Immutable Model in Laravel

We are going to explore the idea of creating a model in Laravel that doesn’t allow modifications (updates or deletes). It should also be…

Nov 21, 2017

Writing a chained Immutable Model in Laravel

Nov 21, 2017

Juan Cortés

Local domains through nginx-proxy and Docker

Continuing on my quest to get everything I had on Mamp Pro (on the good days) on my new Docker setup, the next problem I faced was running…

Nov 16, 2017

Local domains through nginx-proxy and Docker

Nov 16, 2017

Juan Cortés

Juan Cortés

I love building beautiful things and breaking code. Here I mostly rant about tech, code craftsmanship, paranoia, and wariness. www.linkedin.com/in/juancross

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