Earticle

초록

영어

A convertible authenticated encryption scheme simultaneously provides the functions of integration, authentication, confidentiality, and non-repudiation. A signer generates an authenticated ciphertext signature on the chosen message. So that only a designated recipient can recover the message by using her/his secret key and verify the message by using the signer's public key. If there is a dispute, the recipient is able to convert the authenticated ciphertext signature into an ordinary signature that can be veri칎d by anyone. This paper separately points out that any adversary can forge a converted signature in Araki's scheme and Ma-Chen's scheme. Moreover, we further improve the weakness in Wu-Hsu's scheme, which is to convert the signature into an ordinary one should divulge the message. The im- proved scheme not only solves the weakness but also reduces the computational complexities in both sides of signer and recipient. Furthermore, the proposed convertible authenticated encryption scheme is extended for multiple recipients. The message can be recovered and veri칎d by a group with multiple recipients.

목차

Abstract
 1 Introduction
 2 Cryptanalysis of Araki et al.'s Scheme and Ma-Chen's Scheme
  2.1 Review of Araki et al.'s Scheme
  2.2 Review of Ma-Chen's Scheme
 3 The Proposed Schemes
  3.1 A Convert Authenticated Scheme
  3.2 A Convert Authenticated Scheme for Multiple Recipients
 4 Security Analysis and Performance Evaluation
  4.1 Security Analysis
  4.2 Performance Evaluation
 5 Conclusions
 Acknowledgment
 References

키워드

저자

• Ting-Yi Chang [ Department of Industrial Education and Technology, National Changhua University of Education ]
• Chou-Chen Yang [ Department of Management Information Systems, National Chung Hsing University ]
• Min-Shiang Hwang [ Department of Computer Science and Information Engineering, Asia University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605