Regulatory Terminal Key Management for Blockchain Privacy

The patent introduces a regulatory terminal as an intermediary that manages key updates and address mappings. When a user updates their key, the regulatory terminal automatically updates the mapping between the old address and new key, eliminating the need for users to manually notify transaction parties. This resolves the contradiction by maintaining security through key updates while reducing operational complexity through automated address management.

The patent segments data into different types: public information (addresses, transaction amounts) that can be transparent for regulatory purposes, and private information (user identities, sensitive personal data) that remains protected. The regulatory terminal can access and regulate public information while user privacy is preserved through selective disclosure and encryption of sensitive data. This resolves the contradiction by enabling regulatory capability through transparent public data while maintaining privacy protection for sensitive information.

The regulatory terminal is designed as a multi-functional system that combines key management, address mapping, transaction verification, and regulatory oversight into a single platform. This universal system handles multiple regulatory functions through standardized processes, reducing the need for separate complex systems for each regulatory function. The terminal can regulate different types of transactions using the same underlying infrastructure, thereby improving regulatory capability while controlling system complexity through functional integration.