基于国密SM9的多接收者标识签密方案  

Identity-based Multi-receiver Signcryption Scheme Based on SM9

作　　者：张元英[1] ZHANG Yuan-ying(College of Mathematics and Computer Science,Yichun University,Yichun 336000,China)

机构地区：[1]宜春学院数学与计算机科学学院,江西宜春336000

出　　处：《宜春学院学报》2024年第9期44-50,共7页Journal of Yichun University

摘　　要：随着物联网的飞速发展,多接收者标识签密方案有着广阔的应用前景,在一对多的即时通信场景中,以更低的开销同时实现消息的机密性、完整性和认证性。由于大国竞争加剧,我国更加重视数据安全在国家主权、安全和发展利益中的重要性,自主可控的安全密码技术得到重点关注。以我国自主的国密SM9标识密码算法为基础,提出一种多接收者标识签密方案,融合了SM9算法标准中的公钥加密算法和数字签名算法。在随机预言机模型下,新提出的多接收者标识签密方案被证明实现了选择密文安全性和不可伪造性。对比分析表明,新签密算法不仅自主可控,实用性强,还具有优秀的计算性能,在智能车联网中的多个应用场景中都有很好的适用性。With the rapid development of the Internet of Things,identity-based multi-receiver signcryption schemes have broad application prospects.In one-to-many instant messaging scenarios,the confidentiality,integrity,and authentication of the message can be achieved by using the schemes at lower costs.Due to intensified competition among major powers,China attaches greater importance to the importance of data security in national sovereignty,security,and development interests,and focuses on independent and controllable security technology.Based on Chinese cryptography industry standard SM9,an identity-based multi-receiver signcryption scheme is proposed,which integrates the public key encryption algorithm and digital signature algorithm in the SM9.Under the random oracle model,the newly proposed signcryption scheme has been proven to achieve selective ciphertext security and unforgeability.Comparative analysis shows that the new signcryption scheme is not only autonomous,controllable,and practical,but also has excellent computational performance,and has good applicability in intelligent vehicle networking.

关 键 词：基于标识密码 多接收者签密 随机预言机模型 机密性 不可伪造性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]