標題: An Efficient Strong Designated Verifier Proxy Signature Scheme for Electronic Commerce
作者: Lin, Han-Yu
Wu, Tzong-Sun
Huang, Shih-Kun
資訊工程學系
Department of Computer Science
關鍵字: designated verifier;digital signature;proxy;discrete logarithms;public key system
公開日期: 1-七月-2012
摘要: "A strong designated verifier signature (SDVS) scheme only allows a designated verifier to validate signer's signatures for ensuring confidentiality. At the same time, the designated verifier can not transfer the signature to any third party, since he can also generate another computationally indistinguishable SDVS, which is referred to as non-transferability. A proxy signature scheme is a special type of digital signature schemes, which enables an authorized proxy signer to create a valid proxy signature on behalf of the original one. The resulted proxy signature is publicly verifiable by anyone. In this paper, we elaborate on the merits of SDVS schemes and proxy signature schemes to propose an efficient strong designated verifier proxy signature (SDVPS) scheme in which only a designated verifier can be convinced of the proxy signer's identity. The proposed scheme has crucial benefits in organizational operations and electronic commerce. Compared with related schemes, ours has not only shorter signature length, but also lower computational costs. Moreover, the security requirement of unforgeability against existential forgery under adaptive chosen-message attacks (EF-CMA) is proved in the random oracle model."
URI: http://hdl.handle.net/11536/16646
ISSN: 1016-2364
期刊: JOURNAL OF INFORMATION SCIENCE AND ENGINEERING
Volume: 28
Issue: 4
結束頁: 771
顯示於類別:期刊論文


文件中的檔案:

  1. 000306677000009.pdf