Modified secret sharing algorithm for secured medical data sharing in cloud environment

Cloud computing has become a promising computing paradigm drawing extensive attention from both academia and industry. Storing, accessing and processing of data in cloud environment are the cutting edge technology used all over the world. In modern health care industry cloud computing technology is widely adopted for storing and sharing medical data. Sensitivity of Medical data needs to be more secured while sharing the data in cloud environment. Data encryption, homomorphic encryption, secret sharing technique and data partition technique are widely used to share the data in cloud computing environment. In this paper, performance of two algorithms viz., secret sharing algorithm and information dispersal algorithm are compared and modified secret sharing algorithm is proposed for medical data sharing.