Geographic information system (GIS) enables operations for capturing, manipulating,
analyzing, and displaying the spatial characteristics of objects on Earth's surface. As the …

A Private Information Retrieval (PIR) protocol based on coding theory for a single server is
proposed. It provides computational security against linear algebra attacks, addressing the …

Private information retrieval from a single server is considered, utilizing the hardness of the
decoding problem of random linear codes. Presented is a modified version of the first code …

随着数据成为新型生产要素, 数据流通的需求日益增长. 但是, 数据中存在的隐私信息会在流通
过程中面临泄露风险. 隐私计算可以在满足隐私保护约束的同时促进数据价值的释放 …

As data becomes a new factor of production, the demand for data circulation is growing.
However, the sensitive information faces the risk of leakage during the circulation process …

Protecting user privacy is becoming a more prominent concern to the service providers and
customers of data-sensitive platforms. For example, an investor that queries the stock-market …

This thesis consists of two parts: in the first part we focus on information set decoding
algorithms and in the second part on the local to global principle for densities. One of the …