基于椭圆曲线的云存储加密研究

The Research for Encryption on the Cloud Storage Based on the Eliptic Curve

随着云计算的迅速发展,使用云服务的应用日益增多,云计算时代的到来给我们的生活带来了便捷,但是与此同时,存储在云端的数据的安全性却有很大的威胁,比如云计算服务商非法泄露,非法篡改等。论文主要采用椭圆曲线加密算法对云存储的数据进行加密,这样可以增强数据的安全性,保护云端的数据不被泄露,通过采用消息认证可以使得用户从云端的数据不会在概率多项式时间内被篡改后被发现,通过采用ECDSA签名算法可以使得用户不能抵赖上传的数据。

With the fast development of cloud computing technology,there are more and more application of cloud service.the coming of the time of cloud computing technology brings us more convenience.However at the same time there is a tremendousthreat on the security of data,such as ilegal leakage and ilegal tampering etc.In this paper,we adopt the elliptic curve encryption algorithm for data storing on the cloud since it can enhance the security of data,and prevent the data on the cloud from revealing.We adopt the message authentication to make sure that the data on the cloud cannot be tampered in the probabilistic polynomial time.At the same time we adopt the ECDSA algorithm to make the users who have uploaded the data cannot deny the action.