ASKPIR: Authorized Symmetric Keyword Privacy Information Retrieval Protocol Based on DID

ePrint Report: ASKPIR: Authorized Symmetric Keyword Privacy Information Retrieval Protocol Based on DID

Zuodong Wu, Dawei Zhang, Yong Li, Xu Han

Symmetric Private Information Retrieval (SPIR) is a stronger PIR protocol that ensures both client and server privacy. In many cases, the client needs authorization from the data subject before querying data. However, this also means that the server can learn the identity of the data subject. To solve such problems, we propose a new SPIR primitive, called authorized symmetric …

authorization cases client data eprint report information privacy private protocol report server stronger symmetric