Sushmita Ruj

Publicly Verifiable Secure Cloud Storage for Dynamic Data Using Secure Network Coding

2016

Cloud service providers offer storage outsourcing facility to their clients. In a secure cloud storage (SCS) protocol, the integrity of the client's data is maintained. In this work, we construct a publicly verifiable secure cloud …

Certificate Transparency with Enhancements and Short Proofs

2017 · arXiv (Cornell University)

Browsers can detect malicious websites that are provisioned with forged or fake TLS/SSL certificates. However, they are not so good at detecting malicious websites if they are provisioned with mistakenly issued certificates or certificates that …

Griefing-Penalty: Countermeasure for Griefing Attack in Bitcoin-compatible PCNs.

2020 · arXiv (Cornell University)

Payment Channel Networks or PCNs have gained prominence ensuring faster relaying of transactions. However, this Layer-two solution has its own fair share of problems. Topological analysis on Lightning Network reveals that Griefing Attack is a …