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General Information
Dr. Lin Huang
Metropolitan State University of Denver, USA
It's my honor to take on the position of editor in chief of IJMLC. We encourage authors to submit papers concerning any branch of machine learning and computing.
IJMLC 2013 Vol. 3(1): 117-120 ISSN: 2010-3700
DOI: 10.7763/IJMLC.2013.V3.284

New Efficient Identity-Based Key-Insulated Multisignature Scheme

Han-Yu Lin, Tzong-Sun Wu, Ming-Lun Lee, and Chi-Kuang Yeh
Abstract—We propose a new efficient identity-based key-insulted multisignature scheme for facilitating group-oriented applications and mitigating the impact of key exposure. Integrated with identity-based systems, the proposed scheme adopts explicitly verifiable public keys without additional certificate. Each user can also periodically update his private key while the public one remains unchanged. In the proposed scheme, a valid key-insulted multisignature must be cooperatively generated by all signers. Our scheme has the properties of unbounded time periods and random-access key-updates. We also demonstrate that our scheme has better efficiency as compared with previous works and formally prove its security of unforgeability against existential forgery under adaptive chosen-message attacks (EF-CMA) in the random oracle model.

Index Terms—Identity-based, key-insulated, multi-signature, key exposure, bilinear pairing.

H. Y. Lin, T. S. Wu and C. K. Yeh are with the Department of Computer Science and Engineering, National Taiwan Ocean University, Taiwan (e-mail: hanyu@mail.ntou.edu.tw).


Cite:Han-Yu Lin, Tzong-Sun Wu, Ming-Lun Lee, and Chi-Kuang Yeh, "New Efficient Identity-Based Key-Insulated Multisignature Scheme," International Journal of Machine Learning and Computing vol. 3, no. 1, pp. 117-120, 2013.

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