Huawei Cloud Patent: A Blockchain-Based Data Integrity Verification Method

Huawei Cloud Patent: A Blockchain-Based Data Integrity Verification MethodThe State Intellectual Property Office of China shows that Huawei Cloud Computing Technology Co., Ltd

Huawei Cloud Patent: A Blockchain-Based Data Integrity Verification Method

The State Intellectual Property Office of China shows that Huawei Cloud Computing Technology Co., Ltd. filed a patent in June 2023 for a "Data Integrity Verification Method and Related Device," with publication number CN119109610A. This patent proposes a novel data integrity verification method aimed at addressing data security and trustworthiness issues in cloud environments. Its core technology leverages the immutability of blockchain to build a secure and reliable data integrity verification mechanism.

The patent application describes a method used for data integrity verification, primarily involving the following steps: First, the cloud platform initiates an audit request to the blockchain platform. Upon receiving the request, the blockchain platform sends public state information to the cloud platform. The cloud platform uses this public state information to calculate a possession proof for the data block. The cloud platform then sends this possession proof back to the blockchain platform. Finally, the blockchain platform verifies the integrity of the data block based on the received possession proof and generates an audit record for the data block.

The core advantage of this patented technology lies in its full utilization of blockchain's immutability. By placing the data integrity verification process on the blockchain platform, it effectively prevents both the cloud platform and the blockchain platform from tampering with information during the audit process. This means that even if the cloud service provider and a third-party auditor attempt a collusive attack, forging or tampering with the audit results is extremely difficult, ensuring data authenticity and reliability.

Traditional cloud data integrity verification methods often rely on centralized trust mechanisms, making them vulnerable to single points of failure and internal attacks. Huawei Cloud's blockchain-based verification method, however, enhances system security and fault tolerance through a decentralized approach. Blockchain's distributed ledger technology ensures that audit records are maintained by multiple nodes, meaning that damage or attack on a single node cannot affect the integrity of the entire system.

The innovation of this patented technology lies in its clever combination of cloud computing and blockchain technologies. Cloud computing provides powerful computing and storage capabilities, providing a solid foundation for processing and storing massive amounts of data. Blockchain technology provides a secure and reliable trust mechanism for data integrity verification, solving the data security challenges in cloud environments. This technological fusion effectively improves the security of cloud services and offers users a more reliable data management solution.

Specifically, the patented method achieves effective verification of data integrity through the following steps:

1. Audit Request Initiation: The cloud platform, as the data holder, initiates an audit request to the blockchain platform, indicating the need for integrity verification of a specific data block.

2. Public State Information Transmission: After receiving the request, the blockchain platform sends relevant public state information to the cloud platform. This information serves as the basis for calculating the possession proof.

3. Possession Proof Calculation: The cloud platform uses the received public state information and its own data block information to compute a possession proof for the data block. The possession proof is a cryptographic hash value that uniquely identifies the integrity of the data block.

4. Possession Proof Verification: The cloud platform sends the calculated possession proof back to the blockchain platform. The blockchain platform verifies the validity of the possession proof according to predefined rules and algorithms, confirming the integrity of the data block.

5. Audit Record Generation: After verification, the blockchain platform generates a corresponding audit record and records it on the blockchain, ensuring the immutability of the audit results.

This technology has broad application prospects, applicable to various scenarios requiring high data security and trustworthiness, such as:

• Medical Data Management: Protecting the integrity and privacy of patient medical data.

• Financial Transaction Records: Ensuring the authenticity and non-repudiation of financial transactions.

• Internet of Things (IoT) Data Security: Protecting the security and integrity of data generated by IoT devices.

• Supply Chain Management: Tracing product origins and preventing counterfeit products.

In summary, Huawei Cloud's blockchain-based data integrity verification method is a technologically significant innovation. It effectively solves data security and trustworthiness issues in cloud environments, providing new avenues for building more secure and reliable cloud service systems. The mature application of this technology will provide strong security guarantees for data across various industries and accelerate the pace of digital transformation. By utilizing the immutability of blockchain and the powerful computing capabilities of cloud computing, it achieves trustworthy data management in partially untrusted environments, which is of significant importance for future data security. The emergence of this patented technology also marks a further deepening of blockchain technology's application in cloud security.