원문정보
보안공학연구지원센터(IJSIA)
International Journal of Security and Its Applications
Vol.8 No.5
2014.09
pp.333-348
피인용수 : 0건 (자료제공 : 네이버학술정보)
초록
영어
Strong designated verifier proxy signature (SDVPS) enables a proxy signer to sign messages on behalf of an original signer, and only the designated verifier can be convinced of the validity of the proxy signature, and the verifier cannot prove it to any third party. It is a combination of proxy signature and strong designated verifier signature. In this paper, we define a new formal definition and a new security model of existential unforgery of SDVPS, and then analyze a recently proposed SDVPS scheme, and give four attacks to the scheme, and further we give out an improved SDVPS scheme, and prove it in the new security model. Performance analysis shows the improved scheme is efficient and suitable for electronic commerce.
목차
Abstract
1. Introduction
2. Preliminaries
2.1. Framework of SDVPS
2.2. Security model of SDVPS
3. Lin et al.’s strong designated verifier proxy signature scheme and our attacks
3.1. Review of Lin et al.’s scheme
3.2. Cryptanalysis of Lin et al’s scheme
4. Our Improvement
5. Security proof and comparison
5.1. Security of the improved scheme
5.2. Comparison
6. Conclusion
Acknowledgements
References
1. Introduction
2. Preliminaries
2.1. Framework of SDVPS
2.2. Security model of SDVPS
3. Lin et al.’s strong designated verifier proxy signature scheme and our attacks
3.1. Review of Lin et al.’s scheme
3.2. Cryptanalysis of Lin et al’s scheme
4. Our Improvement
5. Security proof and comparison
5.1. Security of the improved scheme
5.2. Comparison
6. Conclusion
Acknowledgements
References
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