__jwk__4h ago
Mick Beer

I just sent a file that no longer exists.

Not deleted after 7 days. Not stored on a server waiting to be breached. Gone — the moment the receiver clicked the link.

Today I'm launching ParaShare by PARAMANT — free for everyone, no account needed to receive.

#postquantum

5:43amMastodon for iOS
Show threadMick Beer5h ago
How it works:
→ Drop a file at paramant.app homepage
→ Get a one-time link
→ Receiver clicks once — file is permanently destroyed
→ Second request returns 404. No copy exists anywhere.
Show threadBas Zoetekouw5h ago
@Mickbeer sounds like a useful sevice, but also like one that has nothing to do with "quantum" (apart from using post-quantum encryption, presumably?).
You still have to take care of the key (well, one time link) distribution yourself, if someone else gets the link they can still retrieve the file, and if your infrastructure is compromised the data can still leak.
Show threadMick Beer4h ago

@baszoetekouw You’re right on all three points — and that’s intentional.

“Post-quantum” refers specifically to the key encapsulation: ML-KEM-768 (NIST FIPS 203), meaning the encryption is safe against quantum computers harvesting traffic today to decrypt later. That’s the threat model we’re solving for regulated industries, not consumer convenience.

Show threadMick Beer4h ago
@baszoetekouw On the link: yes, treat it like a one-time key. If you share it carelessly, that’s on you — same as handing someone a physical key. We don’t pretend otherwise.
Show threadMick Beer4h ago

@baszoetekouw On infrastructure compromise: this is where it actually differs. Files exist only in RAM, never written to disk. No database, no storage layer to breach. An attacker who compromises the server gets process memory — which is gone after delivery. That’s a fundamentally different attack surface than “server stores your file for 7 days.”

It’s not magic. It’s a narrower, harder guarantee — for people who need exactly that.

Show threadMick Beer5h ago
Why I built this:
Europe is falling behind on quantum-safe infrastructure. I wanted to show what's already possible today — no waiting for standards to mature, no excuses. ParaShare is a free, working proof that post-quantum privacy can be simple enough for anyone to use.
Show threadMick Beer5h ago

But this is only the tip of the iceberg.
Behind ParaShare is a new transport protocol
— disruptive in ways l'Il share soon. What you're seeing today is the consumer surface.
What's underneath is built for a different league entirely.

Give Europe the quantum headstart it deserves.

Try it for free - 20MB × 10 files per day, no account needed to receive:
→ paramant.app

Show threadBasieP4h ago
@Mickbeer although i like your aggressive marketing, i must say that i do value objective code / security reviews over just marketing...
Show threadMick Beer4h ago
@BasieP for sure. Me too.
Show threadMick Beer4h ago
@BasieP on it with multiple parties.