#webdev#programming#learning
Rebuilding TLS, Part 4- Certificate, Trust, and MITM Protection
This article is part of my Rebuilding TLS from Scratch series. The full code and runnable...
Dmytro Huz9 min readd
Articles by @dmytro_huz
Browse the latest writing surfaced through DevArt.
Dmytro Huz9 min read
#learning#development#softwaredevelopment
Rebuilding TLS, Part 3 — Building Our First Handshake
Overview: Where we are and What Is Still Missing In the previous part of this series, we...
Dmytro Huz17 min read
#networking#programming#security#tutorial
Rebuilding TLS, Part 2 — Adding Integrity to the Channel
In the first part of this series, we built our first fake secure channel. We took a simple...
Dmytro Huz17 min read
#webdev#programming#learning
Rebuilding TLS, Part 1 — Why Encryption Alone Is Not Enough
A year ago I wrote a series about how a web server works. I started from a very primitive version...
Dmytro Huz9 min read
#cli#devops#linux#tutorial
A Practical Guide to Time for Developers: Part 4 -The Linux Time Sync Cheat Sheet
If you got here and made it through the previous articles, you have already done the hard part. You...
Dmytro Huz6 min read
#webdev#programming#learning#devops
A Practical Guide to Time for Developers: Part 3 — How Computers Share Time
Intro Every action film has that scene just before the military operation begins. “Let’s...
Dmytro Huz9 min read
#testing#ai#development#opensource
When you delegate code writing to AI, you can still lean on tests. But when you delegate the tests to AI as well, what exactly are you relying on? The code looks fine. The tests are green. Does that mean the behavior you expect is truly protect?
I Built ac-trace to Check What Tests Actually Protect ...
Dmytro Huz1 min read
#testing#ai#development#opensource
I Built ac-trace to Check What Tests Actually Protect
AI-assisted coding is making one part of software development much faster than another. It is now...
Dmytro Huz4 min read
#webdev#programming#tutorial#beginners
A Practical Guide to Time for Developers: Part 2 — How one computer keeps time (Linux)
Time on a computer looks simple: call now(), get a timestamp, move on. In the previous article, we...
Dmytro Huz7 min read
#webdev#programming#learning
A Practical Guide to Time for Developers: Part 1 — What time is in software (physics + agreements)
Preface to the series I was tasked with synchronizing time across N computers with ~1...
Dmytro Huz19 min read
#webdev#security#programming#learning
The Aha-Moment of Public-Key Encryption
I started my deep dive into cryptography six months ago. I wanted to deconstruct its internals into...
Dmytro Huz6 min read
#security#programming#learning#development
Building Your Own MAC — Part 3: reinventing HMAC from SHA-256
In the previous article, we did something slightly ridiculous. We took a block cipher — a tool...
Dmytro Huz5 min read
#security#programming#learning#development
Building Own MAC — Part 2: Fixing AES (and accidentally reinventing CMAC)
In the previous series we finished AES and its modes. And in the previous article revealed why it is...
Dmytro Huz7 min read
#webdev#programming#security
Building Own MAC (Message Authentication Code): Part 1 - Encrypted, but Not Trusted
Huston, we have a problem All right, now we have a super-duper cipher — AES. (You don’t?...
Dmytro Huz5 min read
#security#programming#learning#development
Building Own Block Cipher: Part 3 - AES
In the previous article, we built DES from scratch — not because it’s still relevant, but because it...
Dmytro Huz6 min read
#security#programming#learning#development
Building Own Block Cipher: Part 2 — Block Cipher Theory & Rebuilding DES (Foundations You Can See)
🔸 1. Introduction In the previous article, we built the “Lego bricks” of cryptography —...
Dmytro Huz6 min read
#security#programming#learning#development
Building Own Block Cipher: Part 1 - Lego Bricks of Modern Security
Preface This article is part of my “Introduction to Cryptography” series, cross-published...
Dmytro Huz9 min read
#programming#learning#devops#security
Building Own Stream Cipher: Part 2 - RC4: From Ubiquity to Collapse and What It Taught Us About Trust
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz4 min read
#devops#programming#learning#webdev
Building Own Stream Cipher: Part 1 — The Essential Guide to Stream Ciphers for Beginners
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz11 min read
Introduction to Cryptography: A Beginner’s Guide to Computational Security
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz5 min read
#learning#programming#security#computerscience
Introduction to Cryptography: Perfect secrecy
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz10 min read
#programming#computerscience#devops#learning
Introduction to Cryptography: Basic Blocks
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz8 min read
#qa#programming#cicd#testing
Test Flakiness: The Silent Killer of Engineering Trust
“In a quiet village, a shepherd boy watched his flock. Bored, he often shouted ‘Wolf!’ when there...
Dmytro Huz3 min read
#programming#linux#devops#development
From Flow to Frustration — and Back Again: How I Made My Terminal Smarter
Problem Description Do you know this feeling? You’re in the middle of coding. Your brain...
Dmytro Huz5 min read
#programming#devops#development#learning
Building Your Own Web Server — Part 4: Single-threaded non-blocking server
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz15 min read
#beginners#devops#learning#programming
Building Your Own Web Server — Part 3: Blocking Single and Multithreaded Server
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz16 min read
#programming#learning#devops#beginners
Building Your Own Web Server: Part 2 — Plan and Implementation of HTTP and Configuration parser
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz19 min read
#programming#beginners#learning#devops
Building Your Own Web Server: Part 1 — Theory and Foundations
I write about breaking foundational technologies down to first principles and rebuilding them from...
Dmytro Huz11 min read