Howy @howydev

Smart contract eng @ithacaxyz Prev: @alchemy @Immunefi @ImpossibleFi github.com/howydev nyc Joined September 2023

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152
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Alchemy @Alchemy

2 months ago

🏦 @jpmorgan launched their first USD deposit token using our smart wallets. Same familiar banking interface, now backed by crypto rails. 24/7 settlement, instant liquidity, zero gas fees, zero complexity. The benefits of onchain, without the friction ✨ bit.ly/4kZHNjA

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Locker @locker_money

6 months ago

Use browser plugins? Have apps on your phone? Install your first smart account plugin. Learn how to supercharge your 4337 smart account via ERC-6900 + Alchemy Modular Accounts. hackmd.io/@locker/BkyrTi… @Alchemy @erc6900 @erc4337

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Cantina 🪐 @cantinaxyz

7 months ago

It’s here: a new bug bounty and a new era. 🪐 @Alchemy’s bounty is live in the Cantina. Security is non-negotiable when you're building the future of onchain. Your challenge: to secure their upcoming smart account that refuses to compromise on security, cost, or flexibility.…

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Adam Egyed @AdamEgyed1

7 months ago

gm! Here’s a first look at EIP-7702 in action - the upgrade that gives your EOA superpowers 🦸‍♂️ Excited to share this behind-the-scenes demo of what's coming. Quick technical preview before our full video drops on @Alchemy --- KEY MOMENTS --- 0:00 What is 7702? 3:10 Demo…

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vectorized.eth @optimizoor

a year ago

ERC-7739. A defensive rehashing scheme which prevents signature replays across smart accounts and preserves the readability of the signed contents. tldr; enables smart accounts to sign signatures safely without vendor specific SDKs. ethereum-magicians.org/t/erc-7739-rea…

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Alchemy @Alchemy

a year ago

We’re partnering with @worldcoin to bring World Chain to millions of people around the globe. We’re ready to build with the biggest project in web3.

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vectorized.eth @optimizoor

a year ago

Viem has support for Solady ERC-1271 now. Much thanks to @_jxom and team! This helps smart accounts owned by single EOAs to sign replay-safe signatures with the visibility of EIP-712.

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Quantstamp @Quantstamp

a year ago

We're proud to announce Senior Auditing Engineer, Ruben Koch (@0xrubes) is co-authoring the ERC-6900 (@erc6900) standard alongside others from @ethereum, @AlchemyPlatform & @BuildOnCircle! A thread 🧵

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Alchemy @Alchemy

a year ago

🧵While working on account abstraction last year, our engineer @howydev found a smart contract account signature replay vulnerability. Fixes have been deployed, and at this point no funds are at risk. Here's what happened: alchemy.com/blog/erc-1271-…

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Howy @howydev

a year ago

Had this on my backlog for forever - single keccak create3s Uses SSTORE2, but CREATE2 instead of CREATE under the hood to cache deployed bytecode. Not fully optimized yet, but on 2nd+ deployment for simple contracts it's cheaper than fully optimized CREATE3 implementations…

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Howy @howydev

2 years ago

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Alchemy @Alchemy

2 years ago

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curiousapple @0xcuriousapple

2 years ago

🟢🔴 Public Disclosure for ERC1271 Replay Issue🔴 🟢 On September 25, 2023, I found an issue in a widely used implementation of the ERC1271 pattern that affected more than 15 teams. The following blog describes the sequence of events regarding how it all came together.…