Sunscreen

🌞 Introducing SPF🧴🔒

Our Secure Processing Framework (SPF) enables developers to bring FHE to any web2 or web3 app in a performant and scalable way.

✅ One program, any chain
✅ State-of-the-art performance
✅ Future-proof with post-quantum security

Excited to announce that Sunscreen is being acquired by @fhenix!

We’ve spent 4+ years building at the frontier of applied cryptography. As we got to know the Fhenix team over the last year, it’s become clear they’ve built a powerhouse team (@GuyZys, @GuyItz, @ChrisPeikert, @l_woetzel, @laurenmxv to name just a few) best positioned to bring production-grade FHE to the world.

Our mission continues at Fhenix, and our work remains open-source under the AGPL license.

We’re deeply grateful for all the support from the community, our investors, and our friends through these years, especially NuCypher/@TheTNetwork for serving as our very first believers.

If you’re working on cryptography, privacy-preserving systems, or ambitious infrastructure more broadly, I’d love to connect.

- Ravital, on behalf of Team Sunscreen

Private internet voting has always had a hard constraint:

How do you verify the tally without exposing the votes?

In our latest post, we unpack why truly private voting remains elusive, and how ZKPs, threshold cryptography, and FHE get us closer.

blog.sunscreen.tech/why-truly-priv…

Private information retrieval is the Trojan Horse of homomorphic encryption.

It's already deployed to hundreds of millions of users by Apple and Meta.

We broke down how it works and built a private DNS demo to show it in action: blog.sunscreen.tech/private-lookup…

FHE