How Would Oblivious Memory Boost Graph Analytics on Trusted Processors?
Cryptography and Security
2026-01-01 v1
Abstract
Trusted processors provide a way to perform joint computations while preserving data privacy. To overcome the performance degradation caused by data-oblivious algorithms to prevent information leakage, we explore the benefits of oblivious memory (OM) integrated in processors, to which the accesses are unobservable by adversaries. We focus on graph analytics, an important application vulnerable to access-pattern attacks. With a co-design between storage structure and algorithms, our prototype system is 100x faster than baselines given an OM sized around the per-core cache which can be implemented on existing processors with negligible overhead. This gives insights into equipping trusted processors with OM.
Cite
@article{arxiv.2512.24255,
title = {How Would Oblivious Memory Boost Graph Analytics on Trusted Processors?},
author = {Jiping Yu and Xiaowei Zhu and Kun Chen and Guanyu Feng and Yunyi Chen and Xiaoyu Fan and Wenguang Chen},
journal= {arXiv preprint arXiv:2512.24255},
year = {2026}
}