Dan Draper

CipherStash founder, cryptography nerd, Rust zealot.

[Dan Draper @danieldraper]

Something weird is happening in tech right now that isn’t getting as much airtime as I expected.

Big tech is acquiring a lot of open-source startups.

Vercel bought BetterAuth
Supabase bought Turso
Cloudflare bought Deno (and killed most of it!)

And many other curious purchases. All for startups with next-to-no revenue and for undisclosed sums.

I suspect the valuation secrecy is less about how desperate the seller was and more about not revealing how motivated the buyer was.

But what’s really interesting is the trend:
Strategic infrastructure is worth more right now than standalone revenue.

Sure, developer adoption is a distribution advantage.
Bun has almost 100k stars on GitHub. BetterAuth 30k. But that’s not the main driver.

AI makes developer infrastructure strategically critical. And almost all of the really important stuff is open source.

Anthropic didn't need Bun to generate significant subscription revenue. It needed Bun to help Claude Code run faster and more reliably. The Bun team described it: if Bun breaks, Claude Code breaks.

This is about acquiring runtimes, build systems, development tools, and identity infrastructure because these are the essential components of agent-driven software development.

The deals involve projects with significant technical credibility, adoption, or exceptionally specialized teams. Because the infrastructure layer is the hardest part to build right!

Even for frontier models, it's often cheaper to buy these capabilities than to build them.

It's also hard to trust infra if it's proprietary. So, to be a force in tech in years to come, it's all open-source, baby!

[🤓 Andy Keil @alwaysunday]

@danieldraper @supabase Can’t believe I didn’t make the cut 😭

[Dan Draper @danieldraper]

@alwaysunday @supabase

[Dan Draper @danieldraper]

What an epic event! @supabase select was so much fun.
Still so honoured to be partnered with this incredible company.

[Dan Draper @danieldraper]

@kublermdk 2K is more than enough. But if you want to change, might I suggest a move to elliptic curve keys instead?

[Dan Draper @danieldraper]

Anthropic just used Claude to break RSA-896 encryption.

It was only 16-days after RSA-260 was broken and RSA-1024 is the next target.

Should we be concerned?
No. In fact, I think it’s a good thing.

The breakthrough here was to use GPUs instead of CPUs to find prime factors in parallel. Reducing the time to just 10 days instead of literally decades.

Claude didn’t find a new algorithm - it wrote the code to make GNFS (General Number Field Sieves) work in parallel. Seriously impressive but not for the reason that headlines will have you believe.

RSA-896 is old and hasn’t been a standard since 2007.
If you still use RSA, you likely use 2048 or 4096-bit keys.
Are they at risk?

At face value, it seems like it’s just a matter of time before RSA of any size will be easily factored. But the jump from 1024 to 2048 is astronomical compared to the one from 260 to 896.

Assuming the GPU approach scales, factoring RSA-2048 would take ~510 million years on the same 2048 GPUs used to break RSA-896. RSA-4096 would take 430 quintillion years - or 31 billion times the current age of the universe!

Larger RSA keys are perfectly safe from this kind of attack (though the jury is still out on the practicality of quantum attacks any time soon).

So, why do I think this is a good thing?
It reminds us that most cryptography is about computational advantage. And AI driven results like this push technology providers to ensure they use the current best practices.

There’s no hiding anymore - if there’s a weakness, AI will find it, forcing the adoption of better tech. And that’s a good thing!

[Dan Draper @danieldraper]

@theailoser Exactly!

[Dan Draper @danieldraper]

@jverce Look closer

[Dan Draper @danieldraper]

What's wrong with this code?

[Dan Draper @danieldraper]

@Martin_Adams Couldn’t agree more ❤️

[Dan Draper @danieldraper]

*Probably. A failed mutation test doesn’t guarantee that a test is bad but it is almost always a smell!

[Dan Draper @danieldraper]

Mutant tooling is available for most languages. Check out Stryker (JS, Scala, C#), Mutmut (Python) or Gremlins (Go). Leave a comment if you know of others!

Mutation testing is one tool in the kit. Follow me for more.

[CipherStash @cipherstash]

Prisma 8 just hit release candidate.
And it has searchable encryption built in thanks to CipherStash.

We’ve worked with the Prisma team to give you:
🔎 Encrypted search
🔽 Encrypted Sorting and range queries
📃 Searchable encrypted JSON

All natively in Prisma 8’s shiny new API:
✅ Prisma migrations support encrypted data
✅ Prisma schema works with encrypted data types
✅ Prisma queries work with encrypted queries

Plus, its fully supported in Prisma Compute and Prisma Postgres.

Data Level Access Control just got even easier. Full announcement in the comments.