Web: https://iacr.org/news/item/19100

Sept. 14, 2022, 12:54 a.m. |

IACR News iacr.org

ePrint Report: On the Optimal Communication Complexity of Error-Correcting Multi-Server PIR

Reo Eriguchi, Kaoru Kurosawa, Koji Nuida

An $\ell$-server Private Information Retrieval (PIR) scheme enables a client to retrieve a data item from a database replicated among $\ell$ servers while hiding the identity of the item. It is called $b$-error-correcting if a client can correctly compute the data item even in the presence of $b$ malicious servers. It is known that $b$-error correction is possible if and only if $\ell>2b$. …

communication complexity eprint report error server

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