CAJ | 학술논문

结合云存储的应用环境,构造了一种基于密文策略属性的加密(ciphertext policy attribute based encryption,CP -ABE)技术和收敛加密技术的混合加密数据访问控制方案。该方案包括密钥发布中心、用户和云服务器三方实体,能高效、灵活、细粒度地进行数据的访问控制,可提高云存储服务器的空间利用率,并使用签名技术支持数据源认证和数据完整性认证。理论分析与实验验证了该方案具有较高的实际应用价值。
결합운존저적응용배경,구조료일충기우밀문책략속성적가밀(ciphertext policy attribute based encryption,CP -ABE)기술화수렴가밀기술적혼합가밀수거방문공제방안。해방안포괄밀약발포중심、용호화운복무기삼방실체,능고효、령활、세립도지진행수거적방문공제,가제고운존저복무기적공간이용솔,병사용첨명기술지지수거원인증화수거완정성인증。이론분석여실험험증료해방안구유교고적실제응용개치。
A hybrid encryption and data access control scheme based on CP-ABE with convergent encryption technology was constructed by combining the application environment of cloud storage. Three entities are included in the proposed scheme which are key distribution center,customers and cloud server.It was indicted that the proposed scheme is efficient,flexible,fine-grained which can also improve the space utilization of the storage server.The data origin authentication and the data integrity certification were supported by using signature authentication technology. Theoretical analysis and experimental test showed that the proposed scheme has highly practical value.