Abstract
Proxy signature is an active cryptographic research area, and a wide range of literature can be found nowadays suggesting improvement and generalization of existing protocols in various direction. However, most of previously proposed schemes in these literatures are based on discrete logarithm problems. To our best knowledge, there still doesn’t exist an indeed proxy signature scheme based on factoring. The paper present a new proxy signature scheme based on factoring, along with a complete proof of security in the Random Oracle model. The proposed scheme does not need a secure channel to transmit proxy private key.
This research is partially supported by the National Natural Science Foundation of China for Distinguished Young Scholars under Grant No. 60225007, the National Research Fund for the Doctoral Program of Higher Education of China under Grant No. 20020248024 and Grant-in-Aid for Scientific Research (C) under Grant No. 14540100.
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Zhou, Y., Cao, Z., Chai, Z. (2005). An Efficient Proxy-Protected Signature Scheme Based on Factoring. In: Chen, G., Pan, Y., Guo, M., Lu, J. (eds) Parallel and Distributed Processing and Applications - ISPA 2005 Workshops. ISPA 2005. Lecture Notes in Computer Science, vol 3759. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11576259_37
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DOI: https://doi.org/10.1007/11576259_37
Publisher Name: Springer, Berlin, Heidelberg
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