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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40299

Title: Efficient convertible multi-authenticated encryption scheme without message redundancy or one-way hash function
Authors: Jia-Lun Tsai;Tzong-Sun Wu;Han-Yu Lin;Jong-Eao Lee
Contributors: 國立臺灣海洋大學:資訊工程學系
Date: 2010
Issue Date: 2017-01-17T03:56:13Z
Publisher: International Journal of Innovative Computing, Information and Control
Abstract: Abstract: A convertible multi-authenticated encryption (CMAE) scheme providing con-
fidentiality, authenticity and non-repudiation properties allows a designated recipient to
recover and verify an authenticated message which is signed by multiple signers. The
recipient has the ability to further prove the dishonesty of signers to any third party if
they repudiate their signature latter. In 2008, Wu et al. first proposed a CMAE scheme
based on discrete logarithms, but the computational complexity of their scheme is rather
high and the message redundancy is required. To improve the performance and remove
the message redundancy, Tsai adopted one-way hash functions (such as MD5) to propose
a new scheme. In 2005, however, MD5 was cracked by Wang and Yu, which indicates
that the schemes using one-way hash functions might turn out to be vulnerable to such
an attack. This paper proposes a new efficient CMAE scheme. Neither the one-way hash
function nor the message redundancy is employed in the proposed scheme. The scheme
not only preserves the advantages of Wu et al.’s, but also outperforms their scheme.
With low computational cost, our proposed scheme can be practically implemented.
Relation: 6(9)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40299
Appears in Collections:[資訊工程學系] 期刊論文

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