A Cloud Security Model for Document Retrieval by Applying CP-ABHE Scheme Using SNG Technique

Abstract

Cloud computing is an extremely vast field and is growing exponentially. During lockdown, everyone extensively used online tools to perform their day to day tasks like online classes, professional meetings, personal communication, etc., as well as store the meeting data. Security is a major concern in all these online activities. Cloud Computing or cloud services have played an important role in the entire scenario of security issues. Here, we initially perform cipher text policy hierarchical attribute based encryption technique (CP-ABHE) to encrypt the data. In the next stage, we have stored encrypted data in Cloud Service Provider (CSP) to enhance the security. In the final stage, we have used the Sequential Number Generator (SNG) mechanism that drastically reduced the implemented system complexity.