移动环境下数据多副本关联删除方案设计

Associatied Deleting Scheme for Multi-replica in Mobile Environment

针对个人数据在移动互联网环境下存储或共享期间产生的多个数据副本无法进行关联删除导致存在的安全隐患、浪费存储空间的问题,本文提出一种数据多副本关联删除方案。该方案使用加密技术、副本关联技术,通过对原始数据进行加密,结合副本因子、生命因子封装生成副本关联对象RAO,并上传到云端进行存储、共享;云服务器接收到RAO后,通过创建副本目录实现对RAO及其数据副本的生命周期管理和关联删除。实验分析表明,本方案能够有效实现数据多副本管理与关联删除,为实际生产应用提供参考。

In order to solve the problem that the multi-replica which generated by saving or sharing cannot be associated deleted in the mobile environment,and which have security risks and waste of storage space,a associatied deleting scheme for multi-replica in mobile environment was proposed,which was based on encryption technology,multi-replica association Technology.In this scheme,the original data was first encrypted symmetrically by a symmetric key to obtain primitive ciphertext.Then,with the replica and time attribute,the ciphertext was encapsulated into the Replica Associated Object(RAO)and stored in cloud servers.After receiving the RAO,the cloud server creates a replica directory to manage the multi-replica’s life cycle and implement association deletion.Experimental results indicate that the proposed scheme is effective and efficient,and it can provide reference for actual production applications.