Walrus just leveled up (again). The Walrus TypeScript SDK now ships with two massive upgrades: ✅ Upload Relay for faster, more reliable uploads ✅ Native Quilt support for bundling small files like a pro Let's dive into what's new, and why it matters for devs 👇

🚨 BREAKING: Sui Research just dropped a major breakthrough in quantum transition of "some" blockchains. Unfortunately it works for Sui, Solana, Near, Cosmos and other EdDSA-based chains, but not for Bitcoin and Ethereum 😢 Here is the paper: *Afaik this is the first backward compatible quantum-safe upgrade path for blockchain wallets to avoid future forks or freezing accounts. ...and why that’s huge 🧵👇 💀 There’s a non-zero chance that today’s wallets could become vulnerable to quantum adversaries in the coming decades. While I personally doubt we’re anywhere near quantum supremacy that can break cryptography soon, the growing concerns, and new guidance from security agencies recommending algorithm upgrades by 2035, should serve as a wake-up call. Even if much of this is perception-driven, our community must be prepared to eventually transition. Once quantum computers arrive, millions of wallets, including Satoshi’s, could be drained instantly. If your public key is visible, it will eventually be cracked. Lost keys, deceased owners, cold storage... all at risk (these will be the first victims). Billions in crypto sit in “sleeping” wallets that may never be updated or transfer their assets out. 💡 Our solution: We found a way for wallets using EdDSA (e.g., Sui, Solana, Near and co) to prove ownership securely after quantum, without revealing secrets or touching the wallet to quickly transfer their coins. Surprisingly a small detail on how EdDSA private keys are derived compared to ECDSA makes a huge difference on quantum readiness. TL;DR a simple hash invocation over a seed and not directly picking elliptic curve scalars as private keys saved the game! 🔐 No re-signing. No address change. Zero downtime. Just a zero knowledge proof that says: “I still control this wallet, but now signing protected against quantum hackers" 🚀 Built on Ed25519 key derivation (SLIP-0010) and zk-STARKs / Ligero 🛡️ Works for sleeping and lost accounts, multisigs, treasuries, and cold storage 📈 Protects real users & institutions, not just future chains, but your today’s mnemonic based wallets too 👨‍🔬 Developed by @SuiNetwork, @Mysten_Labs and @GeorgeMasonU applied and theoretical cryptographers, congrats to Foteini and Arnab whose help was paramount! *We’re already in contact with the teams behind @ligero_inc and @SoundnessLabs, but we’ll also approach governments and major organizations like Google (which has already begun exploring Ligero ZK proofs) to pursue an implementation, and if possible, make it a global standard. Maybe those who chose Ed25519 over ECDSA were lucky or just smart. Personally, I want to thank one of my first crypto instructors, Daniel Bernstein (@hashbreaker) the inventor of EdDSA, who taught at the EU ECRYPT summer school in Samos back in 2007. He planted a spark that made me obsess over every detail of the algorithm and maybe without that, I wouldn't be here today as a scientist.

Initially @WalrusProtocol was great for bigger blobs of 10s of MiBs. But builders wanted to directly store many smaller files too on Walrus. Now this becomes extremely cheap with a standard way to package smaller files into Quilts with their meta data and all!

Great to see the WalCDN project is coordinating a CDN backed by @WalrusProtocol storage nodes and aggregators, lowering latency significantly over manual / static configurations for reads.

🚨 Big News Swarm Network is now leveraging Walrus(@WalrusProtocol ) to power Verifiable AI. No more black-box logic — logs, claims & reasoning are now stored on-chain via @GetSwarmed. 📜 Proof meets performance. Read more 👉

It’s 7:11 AM. You know what to do. Get your slushy. Take a selfie. Tag @SlushWallet. Use #SlushOutSummer. The first 711 posts to qualify will get a Slush link for $7.11 USDC!

Come to an amazing evening about decentralization, storage and privacy in web3 at the Athens SuiHub @ Friday 27 June at 6pm.

Doubling down on Sui security. A thread 🧵 The root cause of the Cetus incident was a bug in a Cetus math library, not a vulnerability in Sui or Move. But the impact on users is the same. We need to take a holistic perspective and step up our game on supporting ecosystem security.

Just published a new SDK: solana-walrus It lets Solana-native dApps upload, download, and manage @Mysten_Labs Walrus blobs — with automatic bridging to SUI via Wormhole and DEX swaps. Open source & contributions welcome:

🚀 Sui's new innovation, zkAt (spelled zee-cat), can be Bigger than all zkLogin, Plasma and Lightning Network together. Why? Introducing zkAt (Zero-Knowledge Authenticator), a first-of-its-kind blockchain primitive that: 🧠 Hides the authentication policy itself, even from validators. 🧶 Supports arbitrarily complex rules: time-based, amount-based, multi-algo thresholds, zk inside zk, game-solving vs public keys, what?? ♻️ Enables oblivious updates with zkAt+ (change zk policies without changing user's address, what???) ✅ Compatible with account abstraction, in Sui we'll aim for a native authenticator, ideal for custodians and users obsessed with their privacy 🥷 High-probability this will be the major competitor to MPC threshold wallets, this time with pure ZK 🧢 It’s like account abstraction + threshold signatures + zk in one, but truly private. 🚀 Enables private programmable pipelines, aka zk tunnels, opening the door to encrypted DeFi, anonymous voting, stealth wallets, DAO treasuries, and more. Note1 (for cryptographers): Groth16 is not dead, we found a new property, and use case that makes it a better scheme than its competitors. Note2 (for DeFi): Starting from today, personally representing the science-nerds of Sui, Walrus and Mysten Labs, I'm switching mood. Kept this hidden for 3 days with zero sleeping time, constant doctor's help to monitor my help, but the other important topic smoothly finds its way. Huge efforts on the background, day and night, to protect users and traders with the tremendous help of @EmanAbio and @web3crusadr. Good morning