Capacity of Single-Server Single-Message Private Information Retrieval with Coded Side Information
Capacity of Single-Server Single-Message Private Information Retrieval with Coded Side Information
复制标题
编码辅助信息的单服务器单消息私密信息检索能力
DOI:
10.1109/itw.2018.8613304
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
A. Sprintson
中科院分区:
文献类型:
--
作者:
A. Heidarzadeh;Fatemeh Kazemi;A. Sprintson
This paper considers the problem of single-server single-message private information retrieval with coded side information (PIR-CSI). In this problem, there is a server storing a database, and a user which knows a linear combination of a subset of messages in the database as a side information. The number of messages contributing to the side information is known to the server, but the indices and the coefficients of these messages are unknown to the server. The user wishes to download a message from the server privately, i.e., without revealing which message it is requesting, while minimizing the download cost. In this work, we consider two different settings for the PIR-CSI problem depending on the demanded message being or not being one of the messages contributing to the side information. For each setting, we prove an upper bound on the maximum download rate as a function of the size of the database and the size of the side information, and propose a protocol that achieves the rate upper-bound.
DOI:
10.1109/allerton.2018.8635969
发表时间:
2018
期刊:
and Computing
影响因子:
--
作者:
Heidarzadeh, Anoosheh;Garcia, Brenden;Kadhe, Swanand;Rouayheb, Salim El;Sprintson, Alex
通讯作者:
Sprintson, Alex
DOI:
10.1109/isit.2019.8849648
发表时间:
2019
期刊:
2019 IEEE International Symposium on Information Theory (ISIT
影响因子:
--
作者:
Heidarzadeh, Anoosheh;Kazemi, Fatemeh;Sprintson, Alex
通讯作者:
Sprintson, Alex