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# Data-X Talk presentation
## Path ORAM: An Extremely Simple Oblivious RAM Protocol
Paper by Emil Stefanov *et al.* published in "Proceedings of the 2013 ACM SIGSAC Conference on Computer Communications Security". CCS ’13. Berlin, Germany.
### Abstract
> We present Path ORAM, an extremely simple Oblivious RAM protocol with a small amount of client storage.
> Partly due to its simplicity, Path ORAM is the most practical ORAM scheme for small client storage known to date.
> We formally prove that Path ORAM requires log^2 N / log X bandwidth overhead for block size B = X log N.
> For block sizes bigger than Omega(log^2 N), Path ORAM is asymptotically better than the best known ORAM scheme with small client storage.
> Due to its practicality, Path ORAM has been adopted in the design of secure processors since its proposal.
## About this presentation
This presentation is developed by Dmytro Bogatov (dmytro@bu.edu) BU CS PhD student 23'.
Presentation is written in LaTeX using beamer package.
It is compile in CI system (Gitlab CI) which checks spelling, lints latex code, verifies `bibfile.bib` and complies source to PDF file (see [.gitlab-ci.yml](.gitlab-ci.yml)).
Main repo is [https://git.dbogatov.org/bu/PathORAM-Talk](https://git.dbogatov.org/bu/PathORAM-Talk).
### Legal
This work is licensed under **Creative Commons Attribution-NoDerivatives 4.0 International**.
See [LICENSE](LICENSE).
bibfile.bib
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......@@ -40,7 +40,7 @@
@inproceedings{Stefanov:2013:POE:2508859.2516660,
author = {Stefanov, Emil and van Dijk, Marten and Shi, Elaine and Fletcher, Christopher and Ren, Ling and Yu, Xiangyao and Devadas, Srinivas},
title = {Path ORAM: An Extremely Simple Oblivious RAM Protocol},
booktitle = {Proceedings of the 2013 ACM SIGSAC Conference on Computer \&\#38; Communications Security},
booktitle = {Proceedings of the 2013 ACM SIGSAC Conference on Computer Communications Security},
series = {CCS '13},
year = {2013},
isbn = {978-1-4503-2477-9},
......
......
sections/applications-and-extensions.tex
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sections/oblivious-memory.tex
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\end{block}
\note{
This are some theorems stated and proved in the paper.
These are some theorems stated and proved in the paper.
I am not going to do proofs here.
The idea is that these are the theoretical bounds for generic ORAMs.
Designing our own ORAM the aim is to come as close as possible to lower bounds.
......
......
sections/problem-definition.tex
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It not only allows us to analyze system easily.
In case of PathORAM, it is so simple that it has been implemented in pure hardware.
One of the works that puts PAthORAM on the silicon is written by \textcite{Maas:EECS-2014-89}. % chktex 8
One of the works that puts PathORAM on the silicon is written by \textcite{Maas:EECS-2014-89}. % chktex 8
}
\end{frame}
......
......
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