Consensus smart contract triggering mechanism

Consensus smart contract triggering mechanism

System Overview:

System Architecture: describes a system consisting of a processor and memory, which is configured with components such as a blockchain interface and a smart contract executor for operating a blockchain on behalf of multiple clients.

Blockchain Interface: The system interacts with clients through the blockchain interface, handles read and write requests on the blockchain, and executes smart contracts to verify and control access rights.

Smart Contract Triggering Mechanism:

Read Operation Consensus: Automatically trigger smart contract execution by sending a write transaction containing a user ID and a read request to the blockchain to enforce access control.

Access Control: The smart contract verifies the user's access rights to ensure that the user has the right to read the requested data. Once verified, the write transaction is added to the blockchain with an indication that the user has the right to read the data.

Data Retrieval and Return:

Data Retrieval: The system retrieves the data requested by the user from the blockchain and returns it to the user through an event triggered by the smart contract.

Event Throwing: After the smart contract verifies the user's permissions, it throws an event containing the retrieved data and returns it to the user through the blockchain interface.

Method Flow:

Receive Read Request: The system receives a read request from an authenticated user.

Write transaction and consensus: The system issues a write transaction, which automatically triggers the smart contract, executes the consensus process, and verifies the user's access rights.

Data return: Once consensus is reached and access rights are verified, the system retrieves data from the blockchain and returns it to the user through events.

Graphical User Interface (GUI):

GUI component: Provides a graphical interface for defining and managing blockchain metadata, smart contracts, access rights, etc.

User interaction: Users can define entities, fields, permissions, etc. through the GUI and interact with the blockchain service interface to configure and manage blockchain applications.

Encryption and shared keys:

Data encryption: Data stored on the blockchain is encrypted using keys to protect the privacy and security of the data.

Shared keys: Keys are converted into multiple shared keys, which are distributed to participating nodes in the blockchain network to achieve distributed management and access control of data.

Rights forgetting function:

Forget request processing: The system receives user requests to forget specified data, verifies the identity of the requester, and records the forgotten data identity on the blockchain.

Node synchronization: The system synchronizes the forget list to other participating nodes in the blockchain network to ensure data consistency and access control.

Implementation examples:

Detailed cases: Multiple implementation examples are used to demonstrate the application of the system in different scenarios, including data processing, verification, access control, consensus process, etc.

Technical details: Specific code examples, flow charts, architecture diagrams, etc. are provided to explain in detail the implementation and technical details of the system.

What are the main components of the system?

The system mainly consists of processors, memory, blockchain interfaces, smart contract executors, etc. It interacts with clients through blockchain interfaces, processes read and write requests on the blockchain, and executes smart contracts to verify and control access rights.

What is the read operation consensus mechanism?

The read operation consensus mechanism is a mechanism that automatically triggers the execution of smart contracts by sending a write transaction containing a user ID and a read request to the blockchain to verify user access rights and ensure that the user has the right to read the requested data. Once the verification is passed, the write transaction is added to the blockchain with an indication that the user has the right to read the data.

What is the role of smart contracts in the system?

Smart contracts are used in the system to enforce access control. It verifies the user's access rights and ensures that the user can only read the data to which he has the right to access. When a read request arrives, the smart contract is triggered to execute, performs the consensus process, and allows or denies the read operation based on the consensus result.

How is data retrieved from the blockchain and returned to the user?

The system first receives a read request from the user and sends a write transaction to the blockchain through the blockchain interface. After the smart contract verifies the user's permissions, if the permissions allow, the system retrieves the requested data from the blockchain. Then, the system throws an event containing the retrieved data through the blockchain interface and returns the data to the user.

What role does the GUI play in the system?

The GUI (Graphical User Interface) plays the role of an interface for users to interact with the system in the system. Users can define and manage blockchain metadata, smart contracts, access rights, etc. through the GUI. The GUI provides an intuitive operating interface that enables users to easily configure and manage blockchain applications.

How is data encrypted and protected on the blockchain?

Data is encrypted on the blockchain with keys to protect the privacy and security of the data. The keys are converted into multiple shared keys, which are distributed to participating nodes in the blockchain network. Each node can only access its corresponding shared key, thereby realizing distributed management and access control of the data.

How is the right to forget function implemented?

The right to forget function allows users to request to forget specified data. After receiving the forget request, the system verifies the identity of the requester and records the forgotten data identifier on the blockchain. The system will also synchronize the forgotten list to other participating nodes in the blockchain network to ensure data consistency and access control. In this way, the forgotten data will no longer be accessed or displayed to the user.

What implementation examples does the document provide to demonstrate the application of the system?

The document provides multiple implementation examples to demonstrate the application of the system in different scenarios. These implementation examples include detailed cases in data processing, verification, access control, consensus process, etc. Through specific code examples, flow charts, architecture diagrams, etc., the document details the implementation methods and technical details of the system