arXiv subjects

Vaibhav Pratap Singh

Publications and source records attributed to Vaibhav Pratap Singh.

2 recordsLinked to original sources

arXiv2025

SAMAY: System for Acoustic Measurement and Analysis

This paper describes an automatic bird call recording system called SAMAY, which is developed to study bird species by creating a database of large amounts of bird acoustic data. By analysing the recorded bird call data, the system can also be used for automatic classification of bird species, monitoring bird populations and analysing the impact of environmental changes. The system is driven through a powerful STM32F407 series microcontroller, supports 4 microphones, is equipped with 128 GB of storage capacity, and is powered by a 10400 mAh battery pack interfaced with a solar charger. In addition, the device is user-configurable over USB and Wi-Fi during runtime, ensuring user-friendly operation during field deployment.

cs.SD↗

arXiv2025

Backflash Attack on Coherent One-Way Quantum Key Distribution

In this article, we experimentally demonstrate an eavesdropper's (Eve's) information gain by exploiting the breakdown flash generated by the single photon avalanche detector (SPAD) used in coherent one-way quantum key distribution (COW-QKD) setup. Unlike prior studies focusing on the device-level characterization of backflash photons, this work quantifies Eve's learning with a QKD system that includes a key distillation engine (KDE). Eve's learning is quantified using the backflash photons emitted by SPAD and the information available on the classical channel. Experimentally observed data are in good agreement with theoretical simulations. Some mitigation strategies against the backflash attack are also discussed.

quant-ph↗