In the era of digital economy, data is known as the "new oil" and plays a crucial role in promoting technological progress and national economic development. The author believes that data resources should be shared to a certain extent and protected within the corresponding scope. For example, the core data of customer operations in communication enterprises needs to be shared among internal business units, while also being kept confidential to friends like trade secrets. Data sharing is the foundation for achieving digital transformation and intelligent development. In various fields, data exchange and sharing can promote the flow and sharing of information, accelerate the dissemination of knowledge and technology. Especially in the field of social public services, such as healthcare, sharing patient medical data between hospitals can help doctors make more accurate diagnoses and propose more scientific treatment plans; In urban planning, sharing transportation, environmental and other data between the government and enterprises can optimize the allocation of transportation and resources in the city... Data sharing is considered an important driving force for social progress and economic development. At the same time, personal privacy leakage, data abuse, and improper use have become the focus of social attention, and data sharing is also accompanied by challenges in privacy protection. In the era of big data, analyzing and mining massive amounts of data can obtain sensitive personal information. If this information is not protected, it may lead to issues such as personal privacy leakage and information abuse. In addition, data sharing also involves the protection of trade secrets and confidential information. If someone obtains this information without authorization, it may cause serious losses to the enterprise. Therefore, there is an urgent need to establish a balanced technical architecture that can achieve effective data sharing while protecting data privacy from leakage. (Author: Chen Yuchun) (Liao Xinshe)