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Latest posts
Last updated 23 days ago
Accumulated Test Vectors
23 days ago
I like tests. I especially like reusable test vector libraries. Sometimes test...
The FIPS Compliance of HKDF
about 1 month ago
HKDF is an HMAC-based key-derivation function specified in RFC 5869. It’s nice...
Let’s All Agree to Use Seeds as ML-KEM Keys
2 months ago
Last week, NIST published the final version of the ML-KEM[1] specification, FIPS...
Geomys, a blueprint for a sustainable open source maintenance firm
4 months ago
In 2022, I left Google in search of a sustainable approach to...
My Maintenance Policy
7 months ago
I wrote a short document describing how I maintain open source projects...
PINs for Cryptography with Hardware Secure Elements
9 months ago
I’m a big fan of technologies that enable otherwise impossible security properties...
Post-quantum Cryptography for the Go Ecosystem
9 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
12 months ago
I was once talking with a mathematician and trying to explain elliptic...
Why We Don’t Generate Elliptic Curves Every Day
about 1 year ago
With all the talk recently of how the NIST curve parameters were...
Announcing the $12k NIST Elliptic Curves Seeds Bounty
about 1 year ago
The NIST elliptic curves that power much of modern cryptography were generated...