Secured cloud storage scheme using ECC based key management in user hierarchy

摘要: In our proposed scheme, the data owner outsources huge volume of to a cloud storage provider and end users request owner. The encrypts before sending it service does over-encryption by Vimercati et al. [4] outsourced encrypted users. We incorporate an existing Elliptic Curve Cryptography (ECC) based key management scheme in user hierarchy Nikooghadam [11] which classifies security classes efficiently helps derive secret keys lower order classes. component will not have perform any extra work except storing this reduces cost as per pay-per-use pricing policy provider. Our incurs low overhead for generation well its can use wireless mobile devices. is useful owner-write-users-read applications secured from adversaries.