AI & ML
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How iPhone's Secure Enclave Stops Brute-Force Attacks
TL;DR: Your iPhone protects your 6-digit passcode by combining hardware-bound cryptography with forced validation delays. The Secure Enclave enforce…
pqc-bench Part 2: Where the X25519MLKEM768 overhead actually matters
Part 1 ran a fresh-handshake load test on a Graviton3 and measured what the ML-KEM half of X25519MLKEM768 adds to TLS 1.3 handshake latency. The hea…
Post-Quantum Cryptography Migration- A Practical Starting Point for Developers
Most production stacks are running RSA and ECC in a dozen places the developer didn't consciously choose — a cloud provider default, an npm package,…
NSA Accelerates Post-Quantum Cryptography Implementation: Addressing National Security and Tech Industry Concerns
Introduction The National Security Agency (NSA) has announced a dramatic acceleration of its post-quantum cryptography (PQC) implementation timeline…
Cryptotremor: finding out when your encryption actually stops working
Every security team has the same question this October and almost nobody has the answer: when does the encryption in front of us actually stop worki…
Key rotation as a scheduled operation
Key rotation as a scheduled operation Rotation appears in every policy document and fails in most implementations for the same reason: the key exist…
Building a Sovereign Cryptography Suite in .NET: 11 Engines, Multi-Jurisdictional Hashes, and Anti-Keylogger Shields
1. 🚀 Introduction & Background In modern software engineering, data security is often treated as a solved problem through a mono-cultural lens.…
Eliminate replay attacks: Payload hashing & TTL validation in Fabric.
Eliminate replay attacks: Payload hashing & TTL validation in Fabric. Day 06 of the wFabricSecurity Open-Source Engineering Series. In financial…
Rotate without breaking: Automated key rotation with rotate_key().
Key rotation shouldn't mean taking your services offline for a database migration. With wauth's rotate_key(), every secret in your vault is re-encry…
Tamper-proof distributed nodes: SHA-256 source code integrity verification.
Day 03 of the wFabricSecurity Open-Source Engineering Series. How do you know the worker submitting transactions to your blockchain hasn't been modi…
Атаки с подменой адреса: Никто не проверяет 42 символа
Атаки, направленные на подмену адресов, отравление адресной книги и перехватчики буфера обмена делают одну и ту же ставку: вы сравниваете только нес…
Don't trust the randomness API: verify drand beacons in your agent in 30 lines
Agents keep needing a random number that another party can check: picking a reviewer, breaking a tie, sampling a test case, running a small raffle.…
Using SHA256 to Build Trustworthy Data Portals in Brazil
Data portals in emerging markets face a specific credibility problem: how do you prove that the data you display was not silently altered after publ…
Encryption Isn't Enough — You Also Need to Know If Someone Tampered With Your Data
Most people think encryption's job is to keep data secret. That's only half the job — and the half it doesn't cover is exactly where a lot of otherw…
Caesar Cipher Explained: How It Works, Encryption, Decryption, and Examples
If you've ever been curious about how encryption works at a basic level, the Caesar Cipher is a great place to start. It is one of the simplest clas…
PicoCTF Easy1 Writeup — Recover an XOR Key with Crib Dragging
The flag is XOR-encrypted with a short repeating key. Since we know every picoCTF flag starts with picoCTF{ , we XOR that known text ("crib") with t…
The gpg.fail aftermath: On responsible disclosure, GPG, and the state of security in 2026 [32:37]
In 2025, I [the speaker] found and disclosed a bunch of vulnerabilities in GPG, the most used PGP implementation, and held a talk at 39c3 about it.…
PicoCTF Substitution0 Writeup — Break a Substitution Cipher with Frequency Analysis
Unlike Caesar, each letter is replaced by a different letter according to an arbitrary mapping (not a simple shift). We solve it by comparing the le…
PicoCTF Mod 26 Writeup — Brute-Force a Caesar Cipher
The Caesar cipher has exactly 26 possible shifts (modulo the 26 letters of the alphabet). A Python script that tests all 26 shifts and looks for pic…
Everyone agrees on the risk. They disagree on the price.
Published 2026-09-06 Every regulatory claim here was read from the primary document on that date, and each is cited in the policy sources . Guidance…
The One Line of Code That Stops Rainbow Table Attacks
Someone steals a database of password hashes. Instead of cracking each one individually, they check it against a rainbow table — a massive precomput…
Sealing a file so nobody can argue you touched it
An argument about a digital file is almost never lost over what the file says. It is lost one question earlier: How do we know that is the file you…
They steal your database and cannot crack a single password
Picture the worst Monday: someone walked off with a dump of your users table. Emails, names, and the password column. The good news is that you do n…
Hybrid encryption: why combine classical and post-quantum cryptography
When a new cryptographic algorithm appears, a tension shows up: classical algorithms such as X25519 or Ed25519 have resisted attacks for years, but…
Quipu: post-quantum encryption in pure Rust, with a Python wheel
Protecting data that must stay secret ten years from now is a problem for today : an adversary can capture your encrypted traffic now and decrypt it…
What is post-quantum cryptography, and why migrate now?
The cryptography protecting your data today — keys, HTTPS, signatures — rests on mathematical problems that current computers cannot solve in any re…