Information Security

Consequently, securing and safeguarding communication and service delivery has become a critical issue.
　In our research laboratory, we are committed to the research and development of cryptography, random number generation, and related technologies. Our goal is to ensure that internet-connected devices, such as medical devices, automobiles, and smart home appliances, can operate securely and safely in this changing scenario.
　By applying encryption and random number techniques, we aim to provide reliable solutions that safeguard sensitive data and prevent security threats. Our research explores enhancing encryption algorithms, producing high-quality random numbers, and designing secure communication protocols. Through these endeavors, we aspire to create a dependable environment where individuals and organizations can confidently use internet-connected devices without jeopardizing their security and privacy.

	Prof. NOGAMI Yasuyuki E-mail: nogami-y＠(cc.okayama-u.ac.jp) Information security, Discrete mathematics, Modern cryptography, Post-quantum cryptography, Homomorphic encryption, IoT, AI-related security, Secure protocols Directory of Researchers 　Link to group homepage
	Asst. Prof. KODERA Yuuta E-mail: yuta_kodera＠(okayama-u.ac.jp) Information security, Discrete mathematics, Modern cryptography, Post-quantum cryptography, Homomorphic encryption, IoT, AI-related security, Secure protocols Directory of Researchers 　Link to group homepage

Quantum computers are becoming more and more feasible, but they also pose a serious challenge to the security of conventional cryptography. To address this challenge, researchers are exploring new cryptographic methods that can resist quantum attacks. One of the research topics in our laboratory is post-quantum cryptographies, which rely on some hard problems even for quantum attacks. We are interested in designing and analyzing such kinds of cryptographies for various applications.

Random number generation is a crucial technique for many computer science-related technologies that require randomness. There are different ways to produce random numbers, such as using natural phenomena or mathematical calculations. Our research laboratory is interested in the application of random numbers in information security technology. We develop and evaluate random number generators and their security aspects in various contexts.