Research on Deployment Schemes of Blockchain Networks

Glossary

Term DefinitionsBlockchain is a decentralized distributed accounting technology that generates unmodifiable records by stacking encrypted block data in chronological order and stores them in each node of the network. Blockchain as a Service (BaaS) is a cloud-based blockchain service that allows users to create virtual machine instances and deploy multi-node blockchain networks on the cloud. Client Devices are devices used to access the BaaS platform and perform blockchain network deployment operations, such as personal computers and mobile phones. BaaS Servers provide BaaS platform services and are responsible for managing the deployment and maintenance of blockchain networks. Root Certificates are the highest-level certificates issued by a certificate authority (CA) to verify the validity of other certificates. Node Certificates are certificates used to identify the identities of each node in a blockchain network. Private Keys are keys used in pairs with digital certificates to digitally sign and decrypt data. Local Storage is a storage device connected to a client device for secure storage of sensitive information such as private keys. TLS Protocol is an encryption protocol used to provide security in network communications. For example, HTTPS uses TLS protocol to encrypt web browsing data.

Short answer question

What security risks does the traditional BaaS platform have in handling blockchain private keys?

Traditional BaaS platforms usually store blockchain private keys directly on the platform server. Once the platform server is attacked or data is leaked, the private key may be stolen, resulting in serious threats to data security on the blockchain network.

In this solution, what role does the client device play in the deployment of the blockchain network?

The client device is responsible for generating the root certificate, node certificate and corresponding private key of the blockchain organization, and sending the root certificate, node certificate and node private key to the BaaS server, while securely storing the private key corresponding to the root certificate in the local storage.

What role does the local storage play in this solution? Why choose to store the private key in the local storage?

The local storage is used to securely store the private key corresponding to the root certificate of the blockchain network. The choice of storing the private key in the local storage is to avoid the risk of data leakage caused by storing the private key on the BaaS server and improve the security of the blockchain network.

How does the BaaS server create a blockchain node after receiving a deployment request from a client device?

The BaaS server creates a corresponding virtual machine or physical node for each node in the blockchain network based on the deployment request sent by the client device, and installs the blockchain software on the node.

How does a blockchain node obtain the certificates and private keys required for operation?

The blockchain node automatically downloads the required organization root certificate, node certificate, node private key, TLS certificate and other information from the BaaS server to complete identity authentication and secure communication.

Why does the BaaS server delete the temporarily cached private key information after the blockchain node obtains the private key?

Deleting the temporarily cached private key information is to further reduce the risk of private key leakage. Even if the BaaS server is attacked, the attacker cannot obtain the private key because the private key information has been deleted, thereby protecting the security of the blockchain network.

Compared with the traditional BaaS platform deployment solution, what are the improvements in security of this solution?

This solution stores the private key in the client's local secure storage instead of on the BaaS server, which effectively avoids the risk of private key leakage caused by BaaS server data leakage, thereby improving the security of the blockchain network.

When adding a new blockchain node, what operations does the client device need to perform?

The client device needs to generate the node private key and node certificate of the newly added node, and send the node certificate and node private key to the BaaS server, and store the private key of the newly added node securely in the local storage.

What role does the TLS protocol play in the deployment of blockchain networks?

The TLS protocol is used to encrypt the communication data between blockchain nodes to ensure the confidentiality and integrity of the communication data and prevent the data from being stolen or tampered with.

In what ways can the local storage mentioned in this solution be encrypted?

The local storage can be encrypted by algorithmic means, such as software encryption, hardware encryption, etc., or physical means, such as physical isolation, security chips, etc., or a combination of the two, to improve the security of the private key.

Discussion question

Compare and analyze the advantages and disadvantages of this solution and the traditional BaaS platform deployment solution in detail, and discuss how to choose a suitable deployment solution in practical applications.

Explain the importance of private keys in blockchain network security, and combine this solution to explore how to further improve the security of private keys.

Discuss the current status and development trend of local storage encryption technology, and analyze the impact of different encryption technologies on the security of this solution.

With the continuous development of blockchain technology, the BaaS platform is also evolving. This paper analyzes the future development trend of the BaaS platform in terms of security and looks forward to the application prospects of this solution.

Combined with specific application scenarios, such as supply chain finance, digital identity authentication, etc., this paper analyzes how this solution solves the security challenges faced by traditional blockchain network deployment solutions.