東北大学情報科学研究科 Graduate School of Information Sciences, Tohoku University

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東北大学 大学院情報科学研究科 Graduate School of Information Sciences, Tohoku University

Computer and Mathematical Sciences

Information Security A16

  • Prof. Minoru Kuribayashi      
  • Assoc. Prof. Masao Sakai    
  • Assoc. Prof. Shuji Isobe    
  • Assis. Prof. Eisuke Koizumi    
  • Assis. Prof. ZHANG ZHANG    
Keywordscomputational complexity theory, reduction, public-key cryptosystem, cryptographic assumption, forensic technology, AI security, blockchain

Theory and Application of Information Security

The main research subjects of the laboratory are on the theory of information and multimedia security and their applications. We are currently interested in the following topics:
 

(1) Defense Technologies to Infordemics

AI technologies developed in a data-driven manner are, unfortunately, accompanied by the emergence of new threats called Infordemics. We are considering to investigate defensive technologies against disinformation and to strengthen its efforts to society’s DX Transformation.
 

(2) Blockchain Applications

Blockchain enables decentralized systems such as DAO and DApps. We are engaged in research and development for blockchain applications, mainly in the field of personal information protection and utilization, and the social implementation of the developed technologies.
 

(3)Security of Cryptographic Systems

The security of public-key cryptosystems depends on some computational problems that are presumably hard to solve. We are studying the complexity of such primitive problems.
 

(4)Reliable AI-Aided Diagnosis in Medical Images

We are studying AI-aided diagnosis in medical images, including medical image analysis, rare data generation, and dataset bias, to enhance the reliability and safety of clinical decision support.

  • A Concept of Content Credentials

  • Reductions among Cryptographic Primitives

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