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[PDF] Top 20 Resizable Tree-Based Oblivious RAM

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Resizable  Tree-Based  Oblivious  RAM

Resizable Tree-Based Oblivious RAM

... proposed, tree-based Oblivious RAM schemes are drastically more efficient than older techniques, they come with a significant drawback: an inherent dependence on a fixed-size ...of ... See full document

20

Oblivious  Parallel  RAM   and  Applications

Oblivious Parallel RAM and Applications

... In tree-based ORAMs, if CPUs access different data items in a time step, they will access different paths in the tree, whereas if they attempt to simultaneously access the same data item, they will ... See full document

37

Constants  Count:  Practical  Improvements  to  Oblivious  RAM

Constants Count: Practical Improvements to Oblivious RAM

... Oblivious RAM (ORAM) is a cryptographic primitive that hides memory access patterns as seen by untrusted ...first tree-based ORAM whose bandwidth is in- dependent of the ORAM bucket size, a ... See full document

16

Bucket  ORAM:  Single  Online  Roundtrip,  Constant  Bandwidth  Oblivious  RAM

Bucket ORAM: Single Online Roundtrip, Constant Bandwidth Oblivious RAM

... On the other hand, the level-rebuild-style shuffling strategy of hierarchical ORAMs have certain desirable properties. In particular, Williams and Sion show a technique to construct a single online roundtrip ORAM [44], ... See full document

33

Octopus ORAM: An Oblivious RAM with Communication and Server Storage Efficiency

Octopus ORAM: An Oblivious RAM with Communication and Server Storage Efficiency

... the tree-based ORAM constructions [9, 34, 35, 37, 38] and enforces the following policy: a block with a path ID must be stored on the path identified by the ...the tree, the index block has one entry ... See full document

18

Multi-Client  Oblivious  RAM  secure  against  Malicious  Servers

Multi-Client Oblivious RAM secure against Malicious Servers

... the tree whether this block is available or ...the tree can then be performed by simply changing the metadata to mark that the slot is ...by tree-based ORAMs for the majority of the data, ... See full document

23

Onion  ORAM:  A  Constant  Bandwidth  Blowup  Oblivious  RAM

Onion ORAM: A Constant Bandwidth Blowup Oblivious RAM

... schemes based on Merkle trees [36] to ensure that the client always gets the correct metadata, or aborts if the malicious server ever sends an incorrect ...Merkle tree would add an O(log N ) multiplicative ... See full document

31

Adaptive  Garbled  RAM  from  Laconic  Oblivious  Transfer

Adaptive Garbled RAM from Laconic Oblivious Transfer

... an oblivious program in simulating each memory access are ...a tree-based ORAM scheme where the leaves of this tree are associated with the actual ... See full document

44

TWORAM:  Round-Optimal  Oblivious  RAM  with  Applications  to  Searchable  Encryption

TWORAM: Round-Optimal Oblivious RAM with Applications to Searchable Encryption

... efficient oblivious RAM (ORAM) protocol providing oblivious access (read and write) of a memory index y in exactly two rounds: The client prepares an encrypted query encapsulating y and sends it to ... See full document

29

A  Simple  Recursive  Tree  Oblivious  RAM

A Simple Recursive Tree Oblivious RAM

... Oblivious RAM (ORAM) has received increasing attention in the past few ...ious RAM is to enable a client, that can locally store only a small (preferably constant) amount of data, to store remotely N ... See full document

14

An  Oblivious  Parallel  RAM  with $O(\log^2  N)$  Parallel  Runtime  Blowup

An Oblivious Parallel RAM with $O(\log^2 N)$ Parallel Runtime Blowup

... In Path ORAM [23], memory is stored as a tree and each block is mapped to a random leaf in this tree. Given a (block b, leaf l) mapping, the following invariant holds: the block b would be stored in some ... See full document

12

Generalizing  Efficient  Multiparty  Computation

Generalizing Efficient Multiparty Computation

... composable oblivious transfer protocols proposed by Peikert et ...DDH based dual-mode cryptosystem construction of [PVW08] into a scheme secure under the SXDH assumption (which can also be used to ... See full document

22

Toward  Practical  Private  Access  to  Data  Centers  via  Parallel  ORAM

Toward Practical Private Access to Data Centers via Parallel ORAM

... Shortening the Critical Path. A critical bottleneck is the need to iterate through all the stages, since each stage must look up a designator before the next stage can pro- ceed. However, we can arrange for stage s to ... See full document

20

A  Low-Latency,  Low-Area  Hardware  Oblivious  RAM  Controller

A Low-Latency, Low-Area Hardware Oblivious RAM Controller

... Oblivious RAM (ORAM), introduced by Goldreich and Os- trovsky [10], [11], is a cryptographic primitive that completely eliminates the information leakage from a program’s memory access trace, ... See full document

8

Toward  Robust  Hidden  Volumes  using  Write-Only  Oblivious  RAM

Toward Robust Hidden Volumes using Write-Only Oblivious RAM

... is based on the number of linear combinations possible, note that knowledge of some user files jeopardizes secrecy of other ...is based on a simple hash scheme, where an encrypted file is stored in the hard ... See full document

12

The  Oblivious  Machine -  or:  How  to  Put  the  C  into  MPC

The Oblivious Machine - or: How to Put the C into MPC

... the oblivious machine with programs implemented using oblivious arrays directly, we have benchmarked Dijkstra’s algorithm using our ...the oblivious machine instead of the implementation by Keller ... See full document

23

LOAD CURRENT CONTROL BASED ON LUENBERGER OBSERVER FOR THREE PHASE POWER 
CONVERTER SVPWM

LOAD CURRENT CONTROL BASED ON LUENBERGER OBSERVER FOR THREE PHASE POWER CONVERTER SVPWM

... Oblivious transfer (OT) is a two-party computa- tion protocol between a sender and a receiver where the sender transfers some information to the receiv- er while remaining oblivious as to which infor- ... See full document

7

Arithmetic  Cryptography

Arithmetic Cryptography

... (strong) multiplicative homomorphism. Since such schemes can be easily constructed under Regev’s Learning-With-Errors (LWE) assumption [Reg05], this exposes a qualitative difference between the two assumptions. Indeed, ... See full document

80

On The In-pipe Inspection Robots Traversing Through Elbows

On The In-pipe Inspection Robots Traversing Through Elbows

... A general robotic mechanism was presented for in-pipe inspection of level pipes with varied diameter or curved pipelines. The robot employed three legs comprised of parallelogram linkages mechanism which enables adapting ... See full document

9

Foundations  of  Differentially  Oblivious  Algorithms

Foundations of Differentially Oblivious Algorithms

... and oblivious data structures [47] which can achieve statistical security, but 1) they work only for the designated-client setting but not the public-client setting; 2) in general they incur logarithmically many ... See full document

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