TIIS (한국인터넷정보학회)
Current Result Document : 7 / 8
| 한글제목(Korean Title) |
An Efficient Dynamic Group Signature with Non-frameability |
| 영문제목(English Title) |
An Efficient Dynamic Group Signature with Non-frameability |
| 저자(Author) |
Run Xie
Chunxiang Xu
Chanlian He
Xiaojun Zhang
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| 원문수록처(Citation) |
VOL 10 NO. 05 PP. 2407 ~ 2426 (2016. 05) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
A group signature scheme allows any member to sign on behalf of a group. It is applied to practical distributed security communication environments, such as privacy-preserving, data mining. In particular, the excellent features of group signatures, including membership joining and revocation, anonymity, traceability, non-frameability and controllable linkability, make group signature scheme more attractive. Among these features, non-frameability can guarantee that a member's signature cannot be forged by any other (including issuer), and controllable linkability supports to confirm whether or not two group signatures are created by the same signer while preserving anonymity. Until now, only Hwang et al.'s group schemes (proposed in 2013 and 2015) can support all of these features. In this paper, we present a new dynamic group signature scheme which can achieve all of the above excellent features. Compared with their schemes, our scheme has the following advantages. Firstly, our scheme achieves more efficient membership revocation, signing and verifying. The cost of update key in our scheme is two-thirds of them. Secondly, the tracing algorithm is simpler, since the signer can be determined without the judging step. Furthermore, in our scheme, the size of group public key and member's private key are shorter. Lastly, we also prove security features of our scheme, such as anonymity, traceability, non-frameability, under a random oracle model.
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| 키워드(Keyword) |
dynamic group signature
non-frameability
anonymity
Traceability
security proof
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| 파일첨부 |
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