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og真人举办Willy Susilo教授学术讲座的通知

发布时间: 2020年09月15日


应og真人网络空间安全学院邀请,澳大利亚卧龙岗大学Willy Susilo教授将于9月16日线上做专题学术讲座,欢迎广大师生参加!报告的具体安排如下:

报告题目: PKE-MET: Public-Key Encryption with Multi-Ciphertext Equality Test in Cloud Computing

报 告 人: Willy Susilo 教授

报告时间: 2020年9月16日(周三)15:30—17:30

报告地点: 腾讯会议 (ID: 505 828 655)

摘    要: Cloud computing enables users to remove the necessity of the need of local hardware architecture. To protect users’ privacy, data is usually encrypted prior to being sent to the cloud server. As the resulting system is unusable, since the cloud can no longer search throughout the data, new cryptographic primitive such as public-key encryption with equality test (PKEET) has been introduced. In PKEET, users can test whether the underlying messages of two ciphertexts encrypted under different public keys are equal or not without the need to decrypt those ciphertexts. However, in practice, the cloud server may need to verify the equivalence among more than two ciphertexts. This leads to disclosing unnecessary information of users and redundant computation cost will also occur when using traditional PKEET schemes. How to make this more efficient and practical remains an interesting research problem.

This paper solved the aforementioned problems by providing a novel concept of public-key encryption with multi-ciphertext equality test (PKE-MET). In PKE-MET, each ciphertext can designate a number such that the cloud server can only perform equality test on this ciphertext with other ciphertexts, where all their designated numbers are s. For PKE-MET, besides traditional OW-CPA and IND-CPA security, we specially define Number security.

报告人简介: Willy Susilo is a Senior Professor in the School of Computing and Information Technology, Faculty of Engineering and Information Sciences at the University of Wollongong (UOW), Australia. He is the director of Institute of Cybersecurity and Cryptology, School of Computing and Information Technology, UOW and the Head of School of Computing and Information Technology at UOW (2015 - now). He is the Editor-in-Chief of the Elsevier’s Computers Standards and Interface and the MDPI’s Information journal. He is currently an Associate Editor of TDSC. He has also served as the program committee member of several international conferences.






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