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 oblivious RAM (ORAM) is an ORAM 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 paper, we review Path ORAM's key ideas and contribution, summarize its impact and subsequent works, and discuss future directions.

Original languageEnglish (US)
Article number8747366
Pages (from-to)1572-1576
Number of pages5
JournalIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Issue number8
StatePublished - Aug 2020


  • Computer security
  • cryptographic protocols
  • microprocessors
  • side-channel attacks

ASJC Scopus subject areas

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


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