IND-180 | UI SDK Update for Unified SimpleAccountFactory and Versioned Signature Support

[enis-incentiv]

Story:

https://incentiv-net.atlassian.net/browse/IND-180

Summary:

This PR updates the SimpleAccountAPI in the UI SDK to align with the merged SimpleAccountFactory contract, which now supports both Externally Owned Accounts (EOA) and Passkey accounts within a single factory. Additionally, the PR introduces versioned signatures to differentiate between EOA (version == 0) and Passkey (version == 1) signatures, ensuring compatibility with the unified contract structure.

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Changes Implemented:

1. Updated getAccountInitCode Method

• ABI Adjustment: Updated the createAccount ABI in getAccountInitCode to reflect the new contract’s unified structure:

  "function createAccount(address owner, bytes32[2] memory publicKey, uint256 salt) external payable returns (SimpleAccount)"

• Parameter Adjustment:
  • For EOA accounts, provided ownerAddress, set publicKey to [HashZero, HashZero], and used this.index as the salt.
  • For Passkey accounts, provided publicKey values from the owner, set owner to AddressZero, and used this.index as the salt.
• Encoded Function Data: Used the adjusted ABI and parameters to encode the function data for createAccount.
• Factory Address Concatenation: Concatenated this.factory.address with the encoded function data, ensuring correct initialization code for the account type.

2. Versioned Signature Support in signUserOpHash

• Version Byte Addition:
  • Added a version byte to the signUserOpHash return value to distinguish between EOA (version == 0) and Passkey (version == 1) signatures.
  • Used zeroPad and hexlify to prepend a 0x00 byte for EOAs or 0x01 for Passkey accounts to the signed message.
• Simplified Signature Concatenation: Concatenated the version byte with the signed message, ensuring consistent versioning across account types.

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Testing Recommendations:

1. Account Initialization Tests:

   • Verify that getAccountInitCode produces the correct initialization code for:
     • EOA Accounts: Confirm that the owner is populated with ownerAddress, publicKey is zeroed, and the correct salt is used.
     • Passkey Accounts: Confirm that publicKey is set with the owner’s publicKey coordinates, owner is zeroed, and the correct salt is used.
   • Test initialization for both account types using sample-aa-wallet to ensure compatibility.

2. Signature Versioning Tests:

   • Verify that signUserOpHash prepends the correct version byte:
     • 0x00 for EOA accounts.
     • 0x01 for Passkey accounts.
   • Confirm that the resulting signature is valid for both EOA and Passkey accounts using the sample-aa-wallet.

3. Edge Case Tests:

   • Incorrect Account Type: Confirm that initialization fails if neither owner nor publicKey is correctly set in the account configuration.

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Additional Notes:

• Compatibility: This update aligns the UI SDK with the merged SimpleAccountFactory and versioned signature changes, ensuring seamless interaction with both EOA and Passkey accounts.
• Sample AA Wallet Testing: Use sample-aa-wallet to test both MetaMask (EOA) and Passkey account flows, ensuring backward compatibility and functionality consistency.

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This PR improves flexibility and compatibility with the unified SimpleAccountFactory, enhancing user experience across account types. Please review and test to ensure seamless functionality.

[DrenIncentiv]

Looks great, thank you!