Introducing ZKNox - a new venture by cryptography, hardware and security experts @BTChip, @RenaudDUBOIS10 and @SimonMasson2. We plan to accelerate on growing the crypto ecosystem, with a strong focus on defensive technlogies and decentralization.
zknox
54 posts
zknox
@zknoxhq
Practical security on the whole chain - code @ github.com/zknoxhq
- ZKNox is proud to be delivering the fastest FALCON PQ signature contract as part of EF experimentationsThe road to Post-Quantum Ethereum transaction is paved with Account Abstraction (AA) ethresear.ch/t/he-road-to-p…
- Exploiting a bug in Keystone 3 Pro @KeystoneWallet old firmware to run your own code github.com/zknoxhq/ks3-de… - make sure to update to the latest version keyst.one/firmware - this was disclosed responsibly as part of our efforts to improve the ecosystem
- smol(er) update : since the last post we managed to cut further the gas cost from 3.6M to 1.9M by intensively yul-ing critical sections of the FALCON verification
- New blog post : strategies for Hardware Wallet vendors to use EIP-7702 quickly and efficiently
- Joint work with Linea and Alpen Labs to reduce ECC proving time. This is the opportunity to update protocols to bls12-381 without extra proving cost. eprint.iacr.org/2025/933
- Privacy, ZKNOX has your back ! Here is the fastest in circuit ECC over Pectra incoming BLS scalar field with implication on RAILGUN like schemes. We are honored to count among us @SimonMasson2, a Bandersnatch designer. Check our latest post :My own current privacy roadmap (much lighter on L1 changes, but also more limited in its consequences): ethereum-magicians.org/t/a-maximally-… Highly encourage people to read both!zknox.eth.limoBandersnatch, GLV and fakeGLV: Pectra optimal BLS12-381 arithmetic for ZK Dapps
- We deployed a contract to verify a NIST compliant FALCON on L1 and Optimism at 0x5dc45800383d30c2c4c8f7e948090b38b22025f9. While several parts of ETHEREUM are prone to Quantum computing, begin experimentations to secure accounts from now! Details: github.com/ZKNoxHQ/ETHFAL…
- While enabling experimentation and significant performance gains, it's still too expensive for Ethereum PQ scaling. That's why we propose adding NTT as a precompile—paving the way for PQ crypto-agility rather than locking into a single candidate. 👉:
- Replying to @zknoxhq
- New blog post : implementation of post-quantum signature schemes FALCON and DILITHIUM on Ethereum
- NTT is a core operation in PQ cryptography. To demonstrate gas saving for several PQ signature verification algorithms, ZKNOX implemented it in Yul and benchmarked it on FALCON & DILITHIUM. Full FALCON verification dropped from 24M to 3.6M gas. 👉github.com/ZKNoxHQ/NTT/tr…
- Replying to @zknoxhq and @SimonMasson2With Bandersnatch, switching to BLS for ZKDapps such as Railgun could be done with a lesser proving effort than BN. The note includes the spoiler of an incoming scientific article in collaboration with @YoussefElHousn3. Other generic curves circuit optimizations are described.
- After FALCON, our team developped an EVM version of DILITHIUM. While gas cost is higher, it has a simpler structure for HW signer implementation (incoming). Soon a blog post to sum-up pro and cons for both schemes.
