Securing healthcare information over cloud using hybrid approach

Abstract

Cloud computing has increased the attention for accessing and storing information. To share and store healthcare information over Cloud is playing crucial role to provide cost-effective and flexible and reliable solution to the users. Despite advantages of Cloud-based Healthcare system, security of data is major factor, which restricts the acceptance of the Cloud-based model. As a solution to the security challenge, our work advocates the use of linear network coding and re-encryption based on ElGamal cryptography in the form of hybrid approach to secure healthcare information over cloud. To provide security and fault tolerance for cloud storage, we have considered linear network coding mechanism. To exchange the encoding key matrix securely with the receiver, ElGamal re-encryption scheme is used. As a proposed approach, we present how securely the data can be transferred between sender and the receiver over cloud.