XTR-Kurosawa-Desmedt Scheme |
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Authors: | Ding Xiu-huan Fu Zhi-guo Zhang Shu-gong |
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Institution: | School of Mathematics;Jilin University;Changchun;130012 |
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Abstract: | This paper proposes an XTR version of the Kurosawa-Desmedt scheme. Our scheme is secure against adaptive choeen-ciphertext attack under the XTR version of the Decisional Diffie-Hellman assumption in the standard model. Comparing efficiency between the Kurosawa-Desmedt scheme and the proposed XTR-Kurosawa-Desmedt scheme, we find that the proposed scheme is more efficient than the Kurosawa-Desmedt scheme both in communication and computation without compromising security. |
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Keywords: | XTR Kurosawa-Desmedt scheme adaptive chosen-ciphertext security XTR-DDH assumption |
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