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Breaking the $10,000 iO Bounty: My Journey to Crack an Indistinguishability Obfuscation Implementation
In Devcon in 14th November 2024, Ethereum foundation, Phantom.zone, and 0xPARC launched a 10 000 USD bounty for their practical Indistinguishability Obfuscation implementation. You can read more about this in obfustopia.io. This text provides a brief explanation of Indistinguishability Obfuscation (iO), an overview of the associated bounty, and a description of how I successfully broke it.
Simulation-Driven Development: A New Way To Build DApps
Traditional DApp development tutorials, such as DApp University's guide, often recommend tools like Ganache - a tool now deprecated - or Hardhat, as highlighted in Chainlink's tutorial. A newer alternative, Foundry, has also emerged as a powerful and efficient toolkit. These tools enable developers to set up a local testnet to simulate and interact with the Ethereum Virtual Machine (EVM), streamlining the development process.
Injecting Custom Functions into Existing Contracts with eth_simulateV1
As detailed in The JSON-RPC Method eth\_simulateV1 is now available on multiple networks, eth\_simulateV1 is a powerful tool for conducting advanced simulations on Ethereum.
The Interceptor and Bouquet Now Supports Optimism, Base And Gnosis
The Interceptor (Get for Firefox or Chrome) version 1.0.1 and higher now supports Optimism, Base and Gnosis!
Below, I have compiled a list of JSON-RPCs that work with The Interceptor. You can add any of the RPC URLs below to the Interceptor to connect to the corresponding network. Alternatively, you can run your own node or use other RPC providers with eth\_simulateV1\`support. Adding an RPC URL to the Interceptor will confirm if it is supported.
The JSON-RPC Method `eth_simulateV1` is now available on multiple networks
The eth\_simulateV1 method is live on the Ethereum mainnet following the release of Geth v1.14.9 and Nethermind v1.28.0. It is also supported on networks like Base, Optimism, and Gnosis.
eth_multicallV1
We have been working with Geth and Nethermind on Execution Spec 484 proposal about eth\_multicallV1 to add a new JSON-RPC method to Ethereum main net clients. ETH\_multicallV1 was presented in in Execution Layer Meeting 175 and in RPC Standardization meeting in DevConnect Istanbul, slides here. You can also try the most recent multi-call version in live action on main net in The Interceptor browser extension, you can read more about that the extension in The Interceptor - A transaction simulator extension.
