codefu retweeted
There's a special level of stupid-people hell for folks who trust cryptography orgs just because they are Swiss. A level they reserve for people who think Telegram is encrypted by default and compliance officers who force 90-day password rotations.
Its near the free VPN users.
codefu retweeted
Telegram messages aren't e2e encrypted. It is also a "cloud messenger," meaning that all messages live on Telegram's servers rather than the user's device.
With one query, the Russian Telegram team can get every message the French president has ever sent or received to his contacts, every message those contacts have ever sent or received to their contacts, every message those contacts' contacts have ever sent or received, etc.
It's just plaintext, there are no limits to what they can do, like use an LLM to help go through all that material and pull out the dirt, map the relationships, figure out who's keeping secrets from who, etc.
For the French politicians and cabinet members, it is kind of too late to do anything. Even if they try to delete all their messages now, the Telegram team can just mark the messages as "deleted" so that they no longer display to the user -- but not actually delete the data they retain access to.
This could get really wild.
codefu retweeted
In my latest blog post on SNARKs, I identify, and try to clear up, a variety of misconceptions that have been hindering progress and causing confusion.
I hope this leads to more informed and accurate discourse surrounding this transformative technology!
a16zcrypto.com/posts/article…
codefu retweeted
.@massitaverna and I have been taking a deep dive on synchronisation in Ethereum PoW. TL;DR: it's broken. Thread follows; full details at: appliedcrypto.ethz.ch/conten… (1/14)
codefu retweeted
Join us May 2 @UCBerkeley or online for ZKP Workshop, Hackathon Demos & Awards Ceremony 🎓
With ~4K ZKP MOOC participants, ~600 hackathon participants & ~150 teams from over 60 countries, ~30 finalists competing for $200K+ in prizes! 🏆
Register now 👉 shorturl.at/apwY9
codefu retweeted
In case you missed it, you should probably check out zero-knowledge proof of exploit from @zkPoEx.
risczero.com/blog/zkpoex
codefu retweeted
Big congrats to Daniele Coppola on his completed Master's semester project studying cryptography in Nextcloud @nextcloudupdate ethz.ch/content/dam/ethz/spe…
Short thread 👇
codefu retweeted
1/15
The scalability of a #zkRollup IS NOT limited by the prove.
I'm detecting some missunderstandings of how a zkRollup works.
Let me explain in this thread why the prover is not the limiting factor and what are the actual limitetions of zk ( and optimistic ) rollups.
codefu retweeted
more OpenSSL fun: they had removed the support for short RSA keys, but you can still generate weak DSA parameters: of 512 bits, but even 128 bits, and even 2 bits and 1 bit (I'm also curious as to how it picks a 1-bit prime, as 1 is not a prime)
codefu retweeted
Today's zero-knowledge proofs have a big bottleneck: proof generation is slow and expensive.
Why is proof generation slow and expensive? Can it be accelerated?
Learn all about proof generation in our new technical blog post:
scroll.io/blog/proofGenerati…
codefu retweeted
Tomorrow (Wednesday 6th) at @BlackHatEvents, we are presenting with @martinralbrecht, @DowlingBJ and @djwj_ our work on finding practically exploitable vulnerabilities in Matrix. Join us!! blackhat.com/eu-22/briefings… (and check our paper: nebuchadnezzar-megolm.github…)
codefu retweeted
@Scroll_ZKP : Unboxing the zkEVM
youtube.com/watch?v=zw3ExKVY…
codefu retweeted
AleoHQ / snarkOS: A Decentralized Operating System for ZK Applications ★1880 github.com/AleoHQ/snarkOS
codefu retweeted
🧵1/5 — Today we are happy to introduce the Zama Bounty Program. Want to solve interesting FHE problems? €500,000 in prizes to the open source community who will help us move Zama and the Homomorphic Encryption space forward.
👀 zama.ai/bounty-program
#Opensource #FHE
