Kazuhide Fukushima

Fault Injection Attack on Salsa20 and ChaCha and a Lightweight Countermeasure

2017

We propose a fault injection attack on Salsa20 and ChaCha stream ciphers. In these stream ciphers, the initial matrix X, which consists of constants, a key, a block counter, and a nonce, is added to …

Lattice-based Signcryption with Equality Test in Standard Model

2020 · arXiv (Cornell University)

A signcryption, which is an integration of a public key encryption and a digital signature, can provide confidentiality and authenticity simultaneously. Additionally, a signcryption associated with equality test allows a third party (e.g., a cloud …

Prioritizing Vulnerability Assessment Items Using LLM Based on IoT Device Documentations

2024

With the rapid increase in demand for IoT devices, malicious attacks targeting vulnerabilities in IoT devices have been frequent in recent years. It is highly expected that the vulnerabilities can be removed from them through …