Earticle

초록

영어

In an electronic cash scheme, there are three participants, the bank, the spender and the merchant. First, a spender opens an account in a bank. Then, he withdraws electronic cash from his account and pays it to a merchant. After checking the electronic cash’s validity, the merchant accepts it and deposits it to the bank. There are a number of requirements for an electronic cash scheme, such as, anonymity, unforgeability, unreusability, date attachability, divisibility, transferability and portability. In this paper, we show a recently proposed electronic cash scheme is suffering from some faults in anonymity, expiration date and merchant frauds. To improve the scheme, we propose a new untraceable off-line electronic cash scheme and give a security analysis for it.

목차

Abstract
 1. Introduction
 2. Preliminaries
  2.1 RSA Cryptosystem
  2.2 Blind Signatures
 3. Baseri et al.’s Scheme and its Failures
  3.1 Baseri, et al.,’s scheme
  3.2 Weaknesses of Baseri, et al.,’s scheme
 4. The Proposed Scheme
 5. Security Analysis
  5.1 Immunity to the Proposed Attacks
  5.2 Anonymity
  5.3 Double Spender Detection
  5.4 Unforgeability
 6. Performance Comparison
 7. Conclusion
 References

키워드

저자

• Baoyuan Kang [ School of Computer science and software Tianjin polytechnic university, Tianjin, 300387, China ]
• Danhui Xu [ School of Computer science and software Tianjin polytechnic university, Tianjin, 300387, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605