Abstract
Ring signcryption scheme is an important cryptographic primitive that can be used to protect privacy and authenticity of a collection of users who are connected through an ad-hoc network, such as Bluetooth.In this paper,we analyze two ring signcryption schemes:Wang-Zhang-Ma’s scheme (2007) and Zhu-Zhang-Wang’s scheme (2008). We give different attack methods to the above two ring signcryption schemes. There exist Malicious KGC attack and Non-repudiation attack on Wang-Zhang-Ma’s scheme (2007).There exist anonymity attack and existential unforgeability attack on Zhu-Zhang-Wang’s scheme.
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Wang, H., Yu, H. (2009). Cryptanalysis of Two Ring Signcryption Schemes. In: Yung, M., Liu, P., Lin, D. (eds) Information Security and Cryptology. Inscrypt 2008. Lecture Notes in Computer Science, vol 5487. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01440-6_5
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DOI: https://doi.org/10.1007/978-3-642-01440-6_5
Publisher Name: Springer, Berlin, Heidelberg
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