计算机应用研究2013，Vol.30Issue(2)：503-506,4.DOI:10.3969/j.issn.1001-3695.2013.02.051
一种高安全的门限群签密方案
Threshold group signcryption scheme with high security
摘要
Abstract
In order to meet the high security of group communication, by combining hyperelliptic curve cryptosystem with Schnorr' s signature schemes, this paper proposed a high security group signcryption scheme with a (t,n) threshold signcryption and a (k,l) threshold verification. This scheme improved the security defects of Peng et al. , scheme and Wang et al. , scheme. It achieved proactive secret sharing of secrets of threshold signcryption and threshold unsigncryption by Desmedt et al. , secret redistribution protocol. The new scheme can avoid the attack of the evil information and provide the capability of detecting cheating and identifying the cheater besides the property which threshold group signcryption should have. It has lower communication cost and higher security which is especially suitable for solving security problems of the network with limited resource.关键词
门限群签密/门限验证/密钥重新分配/高安全/带宽受限/超椭圆曲线密码体制Key words
threshold group signcryption/threshold verification/secret redistribution/high security/limited resource/hyperelliptic curve cryptosystem( HECC)分类
信息技术与安全科学引用本文复制引用
冯君,汪学明..一种高安全的门限群签密方案[J].计算机应用研究,2013,30(2):503-506,4.基金项目
国家自然科学基金资助项目(61163049) （61163049）
贵州大学研究生创新基金资助项目(理工 2012034) （理工 2012034）
