Cryptography at the core.
Cryptographic software and post-quantum engineering for the data you need to protect—today and over time.
Cryptographic engineeringCryptography / Secure communications
Privacy,
engineered.
The things worth building are worth protecting. We build cryptographic software that puts secure communication into practice.
01 / A protected connectionConcept artwork
01 Post-quantum cryptography02 Secure communications03 Performance-minded engineering
What we build
Serious security.
Made for the real world.
Good cryptography is only the beginning. The challenge is making it work in the systems people depend on.
Keep the conversation yours.
Encrypted collaboration and secure networking, with self-hosted software that puts infrastructure under your control.
Secure communicationsBuilt with a developer’s instinct.
Game-development roots bring a practical focus on memory, networking, performance, and the people using the software.
Our engineering DNAFrom primitives to platforms
Security you can
build on.
01 / Encrypted collaboration
Polynom
Your conversations.
Your infrastructure.
Self-hosted encrypted collaboration that puts your team’s conversations and infrastructure under your control.
Explore Polynom
02 / Secure networking
RYFT
A protected path.
Across the network.
Post-quantum VPN technology focused on protecting your communications across untrusted networks.
Explore RYFT
03 / Cryptographic foundation
PQC Library
The foundation.
Beneath the system.
CAVP-validated algorithms. Desktop and mobile FIPS 140-3 module validations in progress.
Explore the libraryOur engineering DNA
Cryptographers.
Game developers. Hackers.
Builders, at heart.
We care about what happens beneath the surface: how a system runs, where trust lives, and what it takes to keep communication secure.
Founded in 2018, Code Siren brings together cryptography, game-development experience, and ethical hacking. That mix shapes how we build: question assumptions, work through the hard parts, and care about the details.
More about Code SirenStart a conversation
What are you protecting?
Tell us about your communications or cryptography challenge.