Contract Level @contractlevel
Chainlink-focused smart contract development that prioritizes security with extensive testing. contractlevel.com Joined December 2024-
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Someone at every company should have this knowledge
Someone at every company should have this knowledge
The problem with decentralizing noisy capture (identity at the signer level) is balancing the centralized trust assumptions of the capturing device and the impractical user experience of attesting the capture with as many external, independent pieces of hardware as possible.
User requests nonce/session id from MPC nodes Device key *and* external hardware key(s) attest noisy capture happened Data is shamir shared to MPC Fuzzy extracted key signs message requiring external hardware attestation is not the most practical/user friendly
@z__stone decentralizing noisy capture without any trust assumptions is the most important problem
A device trust assumption is introduced if we rely on the third party manufacturer to attest the noisy capture
wtf lol
gm to everyone working on something difficult. Decentralizing fuzzy extractor computation is straightforward, but securely decentralizing initial noisy capture and getting that to computation isn't. easy to see why this hasnt been done before.
best part of the payment abstraction codebase is right here: github.com/code-423n4/202…
best part of the payment abstraction codebase is right here: github.com/code-423n4/202…
an invariant is something about your contract that should always be true - define it as a mathematical expression and assert it holds across execution states
now anyone can combine real time us government data and chainlink automation to manage positions docs.chain.link/data-feeds/us-…
Developers can begin integrating data feeds from the US government today 👀
Developers can begin integrating data feeds from the US government today 👀
Contract Level Identity (CLID): A Decentralized Fuzzy Extractor has been submitted as a proposal for the vLEI hackathon! The ambition with this project is to demonstrate what the base layer of identity should look like - which is enabling absolute sybil-resistance by consensus.…
Honored to be featured as a Cyfrin success story alongside so many great contributors to Web3! Cyfrin is a gateway to opportunity, accessible to anyone, anywhere, with the only requisite being consistent application of the teachings.
Honored to be featured as a Cyfrin success story alongside so many great contributors to Web3! Cyfrin is a gateway to opportunity, accessible to anyone, anywhere, with the only requisite being consistent application of the teachings.
It's been entertaining to watch George's progress with the ccip local simulator - lots of good questions and insights into one of chainlink's best dev tools
It's been entertaining to watch George's progress with the ccip local simulator - lots of good questions and insights into one of chainlink's best dev tools
The most important takeaway from the Chainlink ACE/CCID compliance webinar is that users will have to trust whichever CCID issuer they choose. Contract Level Identity, which is being proposed for the vLEI hackathon, will make an excellent choice.
medium.com/@contractlevel… Read the current WIP draft proposal for the vLEI hackathon. Final version of this will be submitted by end of week. Please give critical feedback 🙏 Last question definitely needs more work
mpyc demos are good for learning python and mpc mpyc.readthedocs.io/en/latest/demo…
unless all messages are signed by deduplicated, fuzzy extracted key, the system should be considered already compromised by identity oracle attacks
The trick with Certora is finding the balance between constraining state and allowing the prover to havoc everything. There's a sweet spot between constraining too much which misses realistic paths, and constraining too little which ends up havocing the impossible.
When dealing with Chainlink, smart contracts, immutability, compliance etc: end-to-end security is essential. A decentralized fuzzy extracted key can NOT be given to someone else, because it can only ever be derived from a unique individual's biometrics.
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