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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40509

Title: Toward Efficient Convertible Authenticated Encryption Schemes Using Self-Certified Public Key System
Authors: Tzong-Sun Wu;Yih-Sen Chen;Han-Yu Lin
Contributors: 國立臺灣海洋大學:資訊工程學系
Date: 2014
Issue Date: 2017-01-19T06:31:42Z
Publisher: Transactions on Internet and Information Systems
Abstract: Abstract: Convertible authenticated encryption (CAE) schemes enable the signer to send a confidential message and its corresponding signature to the designated recipient. The recipient can also convert the signature into a conventional one which can be verified by anyone. Integrating the properties of self-certified public key systems, this paper presents efficient and computationally indistinguishable self-certified CAE schemes for strengthening the security of E-Commerce applications. Additionally, we also adapt the proposed schemes to elliptic curve systems for facilitating the applications of limited computing power and insufficient storage space. The proposed schemes are secure against known existential active attacks, satisfy the semantic security requirement, and have the following advantages: (i) No extra certificate is required since the tasks of authenticating the public key and verifying the signature can be simultaneously carried out within one step, which helps reducing computation efforts and communication overheads. (ii) In case of a later dispute, the recipient can convert the signature into an ordinary one for the public arbitration. (iii) The signature conversion can be solely performed by the recipient without additional computation efforts or communication overheads. (iv) The recipient of the signature can prove himself, if needed, to anyone that he is actually the designated recipient.
Relation: 8(3)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40509
Appears in Collections:[資訊工程學系] 期刊論文

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