A Retrospective on Path ORAM

Emil Stefanov, Marten van Dijk, Elaine Shi, Christopher Fletcher, Ling Ren, Xiangyao Yu, Srinivas Devadas

Research output: Contribution to journalArticlepeer-review


Path ORAM is an oblivious RAM protocol that simultaneously enjoys simplicity and efficiency. As a result, it holds promise to provide cryptographic-grade and practical access pattern protection in multiple application domains, including but not limited to secure hardware. In this brief, we review Path ORAM’s key ideas and contribution, summarize its impact and subsequent works, and discuss future directions.

ASJC Scopus subject areas

  • Software
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering

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