2 citations · 4 across the 7 of their papers we have counts for
9 papers · 1 filter
Automatic Teller Machines for Offline E-cash
Anrin Chakraborti, Qingzhao Zhang, Jingjia Peng +2
Electronic cash (e-cash) is a digital alternative to physical currency that allows anonymous transactions between users and merchants. Typically, coins in an e-cash scheme are only…
Half-Moon Cookie: Private, Similarity-Based Blocklisting with TOCTOU-Attack Resilience
Xinyuan Zhang, Anrin Chakraborti, Michael K. Reiter
Blocklisting is a common technique for preventing the use of known malicious content. However, conventional blocklisting infrastructures require either the blocklist to be public o…
Blocklisted Oblivious Pseudorandom Functions
Xinyuan Zhang, Anrin Chakraborti, Michael Reiter
An oblivious pseudorandom function (OPRF) is a protocol by which a client and server interact to evaluate a pseudorandom function on a key provided by the server and an input provi…
Wink: Deniable Secure Messaging
Anrin Chakraborti, Darius Suciu, Radu Sion
End-to-end encrypted (E2EE) messaging is an essential first step in providing message confidentiality. Unfortunately, all security guarantees of end-to-end encryption are lost when…
PEARL: Plausibly Deniable Flash Translation Layer using WOM coding
Chen Chen, Anrin Chakraborti, Radu Sion
When adversaries are powerful enough to coerce users to reveal encryption keys, encryption alone becomes insufficient for data protection. Plausible deniability (PD) mechanisms res…
ConcurORAM: High-Throughput Stateless Parallel Multi-Client ORAM
Anrin Chakraborti, Radu Sion
ConcurORAM is a parallel, multi-client oblivious RAM (ORAM) that eliminates waiting for concurrent stateless clients and allows overall throughput to scale gracefully, without requ…
DataLair: Efficient Block Storage with Plausible Deniability against Multi-Snapshot Adversaries
Anrin Chakraborti, Chen Chen, Radu Sion
Sensitive information is present on our phones, disks, watches and computers. Its protection is essential. Plausible deniability of stored data allows individuals to deny that thei…
SqORAM: Read-Optimized Sequential Write-Only Oblivious RAM
Anrin Chakraborti, Radu Sion
Oblivious RAM protocols (ORAMs) allow a client to access data from an untrusted storage device without revealing the access patterns. Typically, the ORAM adversary can observe both…
Practical Foundations of History Independence
Sumeet Bajaj, Anrin Chakraborti, Radu Sion
The way data structures organize data is often a function of the sequence of past operations. The organization of data is referred to as the data structure's state, and the sequenc…