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Security and Privacy in Cryptographic Wallets
Speaker (s):
LIU Zhen
Associate Professor,
Shanghai Jiao Tong University
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Date:
Time:
Venue:
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10 August 2023, Thursday
10:00am – 11:00am
Seminar Room 4.1, Level 4
School of Economics/School of Computing
and Information Systems 2 (SOE/SCIS2),
Singapore Management University,
90 Stamford Road,
Singapore 178903
We look forward to seeing you at this research seminar.
Please register by 9 August 2023.
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About the Talk
In blockchain systems (e.g., cryptocurrency systems), digital signature schemes are used to enable users to own and manage their digital assets, for example, transferring funds in cryptocurrencies. As a result, end-users need to generate, manage, and use their cryptographic keys for the underlying signature scheme. As the end-users in blockchain systems may be not expertized in cryptography, Cryptographic Wallet, which, from the users’ perspective, is more comprehensive than the underlying pure signature scheme, considering not only the safety but also the convenience and privacy, as well as the supporting of some applications in practice, has become a popular concept in the community.
In this talk, we will have an investigation on the functionality, safety, and privacy requirements that the practical scenarios and applications impose on Hierarchical Deterministic Wallet (HDW), which is the most popular cryptographic wallet in the community due to its advertised virtues. In addition, as a step towards building cryptographic wallets with solid confidence on the security (including safety and privacy), we will also introduce a formalized definition for HDW, which fully captures the functionality and security requirements on HDW.
About the Speaker
Dr. LIU Zhen is an Associate Professor at the Department of Computer Science and Engineering in Shanghai Jiao Tong University. He received his PhD degrees in Computer Science in 2013 from Shanghai Jiao Tong University and City University of Hong Kong. His main research interests are in Applied Cryptography, in particular, in studying provable security and designing cryptographic primitives, for the research problems motivated by practical applications. Currently, He is working on lattice-based cryptography and their applications in security and privacy protection for blockchain. Also, He has been working on attribute-based encryption and its applications in secure access control. He has published his research results in the field of attribute-based encryption and blockchain on international conference and journals, such as CCS, ESORICS, IEEE TIFS, and IEEE TDSC.
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