An efficient secure proxy verifiably encrypted signature scheme

被引：17
|
作者：
Zhang, Jianhong [1 ,2 ]
Liu, Chenglian [3 ]
Yang, Yixian [2 ]
机构：
[1] N China Univ Technol, Coll Sci, Beijing 100041, Peoples R China
[2] Beijing Univ Posts & Telecommun, Informat Secur Ctr, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
[3] Univ London, Dept Math, London WC1E 7HU, England
来源：
JOURNAL OF NETWORK AND COMPUTER APPLICATIONS | 2010年 / 33卷 / 01期
基金：
北京市自然科学基金;
关键词：
Proxy verifiably encrypted signature; The CDH problem; Random oracle; Security model; AGGREGATE;
D O I：
10.1016/j.jnca.2009.07.003
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Verifiably encrypted signature is an important cryptographic primitive, it can convince a verifier that a given ciphertext is an encryption of signature on a given message. It is often used as a building block to construct an optimistic fair exchange. in this paper, we propose a new concept: a proxy verifiably encrypted signature scheme, by combining proxy signature with a verifiably encrypted signature. And we formalize security model of proxy verifiably encrypted signature. After a detail construction is given, we show that the proposed scheme is provably secure in the random oracle model. The security of the scheme is related to the computational Diffie-Hellman problem. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：29 / 34
页数：6
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