Blockchain Account Level Access Control for Smart Contract Security

The patent introduces account levels as a new parameter to control access to smart contract functions. By establishing different account levels (e.g., first account level and second account level), the system can differentiate between authorized and unauthorized access requests. The access control mechanism checks whether the requesting account's level satisfies the required level for the target function, thereby preventing malicious access while maintaining ease of operation for legitimate users.

The patent implements local quality by assigning different account levels to different accounts based on their specific access requirements. Instead of a uniform permission system, each account is granted appropriate access rights according to its designated level. This allows the system to maintain security through centralized control while avoiding excessive complexity by applying permissions locally to each account-function pair rather than managing complex global permission matrices.

The patent applies preliminary action by pre-establishing account levels and associating them with specific smart contract functions during system setup or account creation. The access control mechanism then performs a simple level comparison check when processing transactions, rather than conducting complex authorization evaluations at runtime. This preliminary configuration reduces the verification overhead during transaction processing, maintaining security while minimizing impact on productivity.