摘要
侧信道攻击引起密码系统的部分信息泄漏,破坏很多密码方案的安全性。在基于身份的广播加密方案(IBBE)中,到目前为止,还没有能抵抗侧信道攻击的安全方案。基于此,提出一个抗侧信道攻击安全的基于身份的广播加密方案。使用双系统加密技术,在复合阶群静态假设下在标准模型中证明了提出方案的安全性。泄漏性能分析表明,私钥的相对泄漏率可以达到1/3。该方案具有较好的抗私钥泄漏性能。
The side channel attack causes information leakage of cryptosystems,and it also destroys the security of many cryptographic schemes. There is no security scheme can resist side channel attack in identity-based broadcast encryption( IBBE). In this paper,we propose an IBBE scheme against side channel attack. The scheme uses dual system encryption technology,and we prove the safety of the proposed scheme in the standard model based on composite order bilinear group assumptions. Leakage performance analysis shows that the private key of the relative leakage rate can reach 1 /3. The scheme has good performance of anti-private key leak.
出处
《计算机应用与软件》
CSCD
2016年第11期282-287,309,共7页
Computer Applications and Software
基金
国家自然科学基金项目(61272542)
江苏省教育厅自然科学基金项目(14KJD52006
13KJD460007)
宿迁市工业科技支撑计划项目(H201315
Z201450)
宿迁学院优秀青年骨干教师基金
宿迁学院科研基金项目(2016KY04)
关键词
弹性泄漏
双系统加密
私钥泄漏
基于身份广播加密
Leakage-resilient
Dual system encryption
Private key leakage
Identity-based broadcast encryption