Panacea: Non-interactive and Stateless Oblivious RAM

ePrint Report: Panacea: Non-interactive and Stateless Oblivious RAM

Kelong Cong, Debajyoti Das, Georgio Nicolas, Jeongeun Park

Oblivious RAM (ORAM) allows a client to outsource storage to a remote server while hiding the data access pattern from the server. Many ORAM designs have been proposed to reduce the computational overhead and bandwidth blowup for the client. A recent work, Onion Ring ORAM (CCS'19), is able to achieve $O(1)$ bandwidth blowup in the online phase using fully homomorphic encryption (FHE) techniques. However, …

access bandwidth client computational data data access eprint report non oblivious onion remote server report ring server stateless storage work