Can I use this for non-vehicle use cases?

Yes, while the templates use vehicle IDs as examples, the underlying patterns are designed for any sensitive data requiring on-chain privacy, such as biometrics or personal identifiers.

How does this skill ensure data privacy?

It implements commitment schemes using hashing with salts and provides automated validation scripts to ensure that raw sensitive data never touches the blockchain storage or events.

What main components are included in the framework?

It provides a PrivacyProtectedAccount contract, an AccountFactory for CREATE2 deployments, and an optional VehicleRegistry for managing private mappings.

Is it compliant with the ERC-4337 standard?

Absolutely. The templates implement the official IAccount interface and are designed to interact correctly with standard EntryPoint contracts and bundlers.

Does it support ZK proofs?

Yes, the skill includes patterns and guidance for integrating zero-knowledge proof verification into the ERC-4337 signature validation flow for advanced privacy requirements.

ERC-4337 Privacy Wallet Dev

Name: ERC-4337 Privacy Wallet Dev
Author: mashharuki

bymashharuki

0•

Security & Testing

Builds secure, privacy-preserving ERC-4337 account abstraction wallets for vehicle identity and sensitive data protection.

This skill provides a specialized framework for developing ERC-4337 compliant wallets that prioritize user privacy through advanced cryptographic techniques. It enables developers to implement account abstraction with commitment schemes and deterministic address generation via CREATE2, ensuring that sensitive information like vehicle license plates or biometric data remains off-chain while maintaining full on-chain functionality. The skill includes pre-built templates for privacy-protected accounts, automated validation scripts to prevent data leaks, and comprehensive testing suites for both smart contract logic and privacy verification.

Key Features

01Deterministic address generation using CREATE2

020 GitHub stars

03Off-chain commitment schemes for sensitive data protection

04Zero-Knowledge (ZK) proof integration support

05Automated privacy leak validation and auditing

06ERC-4337 compliant Account Abstraction templates

Use Cases

01Building privacy-focused account abstraction for biometric authentication

02Implementing vehicle identity wallets that hide license plate numbers

03Generating counterfactual wallet addresses from private user data

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add mashharuki/car erc4337-privacy-wallet-dev

For use in Claude.ai and ChatGPT

Key Features

01Deterministic address generation using CREATE2

020 GitHub stars

03Off-chain commitment schemes for sensitive data protection

04Zero-Knowledge (ZK) proof integration support

05Automated privacy leak validation and auditing

06ERC-4337 compliant Account Abstraction templates

Use Cases

01Building privacy-focused account abstraction for biometric authentication

02Implementing vehicle identity wallets that hide license plate numbers

03Generating counterfactual wallet addresses from private user data

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add mashharuki/car erc4337-privacy-wallet-dev

For use in Claude.ai and ChatGPT