Qiang Tang

Making Any Identity-Based Encryption Accountable, Efficiently

2015 · Lecture notes in computer science

Identity-Based Encryption (IBE) provides a compelling solution to the PKI management problem, however it comes with the serious privacy consideration that a trusted party (called the PKG) is required to generate (and hence also know) …

Cryptographic Solutions for Credibility and Liability Issues of Genomic Data

2017 · IEEE Transactions on Dependable and Secure Computing

In this work, we consider a scenario that includes an individual sharing his genomic data (or results obtained from his genomic data) with a service provider. In this scenario, (i) the service provider wants to …

Differentially Private Neighborhood-based Recommender Systems

2017 · arXiv (Cornell University)

Privacy issues of recommender systems have become a hot topic for the society as such systems are appearing in every corner of our life. In contrast to the fact that many secure multi-party computation protocols …

Crooked indifferentiability of the Feistel Construction

2024 · arXiv (Cornell University)

The Feistel construction is a fundamental technique for building pseudorandom permutations and block ciphers. This paper shows that a simple adaptation of the construction is resistant, even to algorithm substitution attacks -- that is, adversarial …

Wave-packet trajectory analysis of the self-interference and cross-interference mechanisms in double-slit interference involving single electrons

2024 · Physica Scripta

Abstract In Copenhagen’s interpretation, a self-interference mechanism is assumed for a wave function to split and to pass through the slits simultaneously, then recombine and collapse to generate a dot signal on a detector. Its …

Short Paper: Decentralized Fair Exchange for Assets across Blockchain and the Internet

2025

In this brief announcement, we propose a protocol that enables Alice, who holds cryptocurrency assets maintained on a blockchain, and Bob, who holds traditional digital assets on the Internet secured by a trustworthy TLS service, …