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Latest posts

Last updated 29 days ago

Let’s All Agree to Use Seeds as ML-KEM Keys

29 days ago

Last week, NIST published the final version of the ML-KEM[1] specification, FIPS...

age Plugins

2 months ago

age is a file encryption tool, library, and format. It lets you...

Geomys, a blueprint for a sustainable open source maintenance firm

2 months ago

In 2022, I left Google in search of a sustainable approach to...

XAES-256-GCM

3 months ago

About a year ago I wrote that “I want to use XAES-256-GCM/11...

My Maintenance Policy

6 months ago

I wrote a short document describing how I maintain open source projects...

PINs for Cryptography with Hardware Secure Elements

7 months ago

I’m a big fan of technologies that enable otherwise impossible security properties...

Post-quantum Cryptography for the Go Ecosystem

8 months ago

filippo.io/mlkem768 is a pure-Go implementation of ML-KEM-768 optimized for correctness and readability...

Enough Polynomials and Linear Algebra to Implement Kyber

11 months ago

I was once talking with a mathematician and trying to explain elliptic...

Why We Don’t Generate Elliptic Curves Every Day

11 months ago

With all the talk recently of how the NIST curve parameters were...

Announcing the $12k NIST Elliptic Curves Seeds Bounty

12 months ago

The NIST elliptic curves that power much of modern cryptography were generated...

I want XAES-256-GCM/11

about 1 year ago

In 2023, the way to use AES is AES-GCM. Anything else is...

A Cryptographic Near Miss

over 1 year ago

Go 1.20.2 fixed a small vulnerability in the crypto/elliptic package. The impact...