TLS Interception: How Corporate Proxies Read Your Encrypted Traffic
The padlock in your browser tells you the connection is encrypted. It does not tell you who is on the other end of that encryption. On millions of cor…
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Cloud KMS and Bring-Your-Own-Key: What You're Actually Trusting
Every major cloud provider sells a key management service, and most sell a "bring your own key" option layered on top, marketed as the difference betw…
White House drastically shortens deadline for dropping quantum-vulnerable crypto
Order warns of national security risks if post-quantum cryptography isn't adopted in time.
Private Set Intersection: Finding What Two Parties Share Without Revealing the Rest
Private Set Intersection, usually shortened to PSI, is a protocol for two parties who each hold a set of items. They want to compute the items the two…
How to implement field-level AES-256-GCM encryption in Spring Boot (and why we packaged it into one annotation)
If you've ever had to encrypt a nationalId , a creditCardNumber , or a medicalRecord field in a Spring Boot entity, you already know the drill. You wr…
rclone crypt: encrypt files client-side before they touch any cloud
If you want files encrypted before they ever reach a cloud provider — so the provider only ever sees ciphertext — rclone crypt is the simplest tool th…
How We Encrypt X Auth Tokens: AES-256-GCM in Practice
When you build a tool that stores authentication tokens for other people's social media accounts, you have exactly one job before anything else: make …
How I built an E2EE chat in Go + React (with AI agent support)
🚀 Try it now: Open the Arthas web app — create a room, share the code, chat with E2EE. No signup needed. TL;DR — Try It in 2 Minutes No signup require…
Texas AG sues Meta over claims that WhatsApp doesn't provide end-to-end encryption
Critics note a lack of factual support in lawsuit filed by US Senate candidate.
Encrypt Once, Boot Forever: TPM2 Auto-Unlock on Fedora 44
When I set up Fedora 44 on my Predator Helios Neo 16, I enabled full disk encryption using LUKS. Non-negotiable for a cybersecurity student. The probl…
laravel-crypto: libsodium, no compromises, and per-user encryption
Laravel's default cipher is AES-256-CBC . That is a 25-year-old design with no built-in authentication — the MAC is bolted on separately by the framew…
OPAQUE: Password Authentication That Never Sends the Password
The standard way to log in — type a password, send it to the server, hope the server hashes it well — has a structural flaw nobody has been able to fi…
EU Chat Control: What Client-Side Scanning Actually Means for Encryption
The EU's proposed Chat Control regulation would require messaging providers to scan your messages for illegal content before encryption, on your devic…
Matrix: The Open Protocol for Federated Encrypted Messaging
Signal works well when everyone involved trusts the same company. Matrix is built for the case where they don't — where organizations want to run thei…
Building an Experimental TypeScript Cipher Inspired by 8 Dimensions
Over the last few days, I started an experimental study on cryptography with the goal of better understanding concepts such as symmetric encryption , …
How Group Encrypted Messaging Actually Works
Adding a third person to an encrypted conversation seems like it should be simple. It isn't. The cryptographic properties that make 1:1 messaging secu…