Currently widely used elliptical curve codes, pairing operations that realize future high -performance cipher, quasi -equal ciphers that ensure information on the cloud, and resistance to the safety of quantum computers. The aim of developing a safe and secure society that enables the use of encryption by high -performance implementation of the algorithm up to quantum calculation codes, and enables the use of encryption to the edge device by miniaturization and low power. I am.

Cryptographic algorithms and hardware are required to prevent security flaw by attack. Crypto-hardware is expected to comply with security level, in addition to its performance.We aim to evaluate the security level theoretically and also practically by monitoring our hardware. In cases any security flaws are detected,it is also very important to propose architectures and implementations to cope with such security flaw.

In CPS, it is not enough to ensure the security of the entire system by encrypting data in cyberspace for confidentiality and attaching digital signature for authenticity, but the protection and assurance of data at the sensor node, which is the boundary between the cyber space and the physical space, is an important issue. Our target is to realize secure measurement system by studying measurement methods that are resistant to disturbance and intentional attacks, and by evaluating the security of actual sensor designs.

Synchronous digital signal processing is widely used. However, asynchronous control is required to improve reliability for extreme environment, like ultra-low temperature operations and outer space operation. No use of clock has the advantage of improving the concealing resistivity of secret information against side-channel attacks in crypto-hardware. In addition, for specific processes such as CIM (Computer-In-Memory), it is more efficient to utilizing time-domain signals in stead of voltage-domain signals.