Client-Controlled HECC-as-a-Service (HaaS)

Abstract

Cloud computing is making big revolution in information technology field since it is advantageous than traditional systems. Outsourcing and remote data storage may stand as obstacle for security of data in cloud. Data security model (DSM) with safe data retrieval framework has been proposed which employs hyperelliptic curve cryptography for data encryption in order to avoid huge computation costs for keys involved. First approach is client-side encryption of data and then storing encrypted data in cloud. Registered users access data with valid username and password provided by client. Initially data categorization is performed with sensitivity levels being provided by clients, based on which data is placed in security sections. Various strategies utilized include 80-bit HECC encryption, SHA-3 (Secure Hash Algorithm-3) for integrity verification, data retrieval by using encrypted index and dividing data into three sections for storing in cloud. An algorithm to search files in server with multiple keywords has been proposed and implemented. We for first time implemented HECC and HECC with parallel executions in cloud with Openstack along with HECC-as-a-Service (HaaS). Detailed security and result analysis of model is provided along with comparison of scheme with existing methods which shows that model is much faster than any other model employing HECC in cloud.