Integrate Account Abstraction Implementation as in EIP-2938

[rlan35]

Description

Integrate the Account Abstraction feature as proposed in EIP-2938 into Harmony's core protocol logic using the reference implementation in https://github.com/quilt/go-ethereum. Note this won't be a simple merging since Harmony's EVM implementation has minor difference from the ethereum's implementation.

Context

Harmony is a fully Ethereum-compatible blockchain which shares the core EVM logic and account model. Some of the limitation of Ethereum account model is also present in Harmony. EIP-2938 is proposed to improve the flexibility of the account model in Ethereum to allow a contract to be the top-level account that pays fees and starts transaction execution. This will enable many applications such as:

• Smart contract wallets that use signature verification other than ECDSA (eg. Schnorr, BLS, post-quantum…)
• Smart contract wallets that include features such as multisig verification or social recovery, reducing the highly prevalent risk of funds being lost or stolen
• Privacy-preserving systems like tornado.cash
• Attempts to improve gas efficiency of DeFi protocols by preventing transactions that don’t satisfy high-level conditions (eg. existence of a matching order) from being included on chain
• Users being able to pay for transaction fees in a token other than ETH (eg. by converting that token into the ETH needed for fees inside the transaction in real-time)

Acceptance Criteria

• Fully implement the EIP-2938 proposal into Harmony core, including new opcode and txn type, account abstraction logic, txPool validation logic update etc.
• Passes all the test cases in https://github.com/quilt/tests/tree/account-abstraction.
• The implementation needs to be backward compatible and all existing Harmony test cases need to pass.
• optional, implement a demo application to demonstrate the account abstraction feature.

Reference

• Paradigm Research: How does Optimism's Rollup really work? Account Abstraction
• @lightclients: Ethereum wallets may be getting a significant upgrade soon. With the proposed change, EOAs will immediately be able to send batch txs, expiring txs, unordered txs, and more.
• Near's Implicit Accounts: Similar to Bitcoin/Ethereum accounts. They allow you to reserve an account ID before it's created by generating a ED25519 key-pair locally. This key-pair has a public key that maps to 64 character hex representation which becomes the account ID.

Reward

$25,000 equivalent in ONE tokens.

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Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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Work has been started.

These users each claimed they can complete the work by 3 days, 6 hours from now.
Please review their action plans below:

1) ttmofficiall has started work.

Harmonize
2) osadovy has started work.

• thoroughly move aa implementation changes to harmony codebase
• run AA test suite and fix issues, if any

Learn more on the Gitcoin Issue Details page.

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Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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Work for 255530.0393 ONE (33771.36 USD @ $0.13/ONE) has been submitted by:

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Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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The funding of 255530.0393 ONE (29489.44 USD @ $0.11/ONE) attached to this issue has been cancelled by the bounty submitter

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