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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40494

Title: Provably Secure Proxy Convertible Authenticated Encryption Scheme Based on RSA
Authors: Tzong-Sun Wu
Han-Yu Lin
Contributors: 國立臺灣海洋大學:資訊工程學系
Keywords: Conversion
Proxy signature
Authenticated encryption
Digital signature
Date: 2014
Issue Date: 2017-01-19T06:04:16Z
Publisher: Information Sciences
Abstract: Abstract: To engage with complicated business operations, we propose a proxy convertible authenticated encryption (CAE) scheme based on RSA assumption to resolve the delegation problem for confidential transactions. The proposed scheme enables an authorized proxy signer to produce a proxy authenticated ciphertext such that only the designated recipient can validate it for assuring the transaction privacy. In case of a later repudiation, the designated recipient can just release the converted proxy signature for public arbitration without extra computation efforts or communication overheads. Moreover, the security requirement of confidentiality against indistinguishability under adaptive chosen-ciphertext attacks (IND-CCA2) and that of unforgeability against existential forgery under adaptive chosen-message attacks (EF-CMA) are given in the random oracle model. To the best of our knowledge, the proposed scheme is the first provably secure proxy CAE scheme based on RSA assumption.
Relation: 278(10)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40494
Appears in Collections:[資訊工程學系] 期刊論文

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