BI-LEVEL AUTHENTICATION FOR EFFECTIVE DATA SHARING IN CLOUD VIA PRIVACY-PRESERVING AUTHENTICATION PROTOCOL
| Main Authors: | J. Jeya Praise, A. Sam Silva |
|---|---|
| Format: | Article |
| Terbitan: |
, 2017
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/439232 |
Daftar Isi:
- Cloud computing is an emerging technology of distributed computing where users can remotely store their data in cloud storage and enjoy the on-demand cloud applications and services from a shared pool of configurable computing resources, without the burden of local infrastructure and maintenance. During data accessing, different users may share their data to achieve productive benefits. Storing the data in third party’s cloud system causes serious concern over the data confidentiality. The existing security approaches mainly focus on strong authentication to protect data from unauthorized accessed, but neglect a privacy issue when a user challenges the cloud server to request other user for data sharing. In this we propose a Privacy-Preserving Authentication (PPA) protocol for data sharing in cloud storage to address the above privacy issue. In the PPA, 1) Anonymous access request matching mechanism is used to achieve shared access authority with privacy and security consideration. (For e.g., user privacy, data anonymity, forward security and authentication); 2) Erasure code is applied by the cloud server to provide data sharing among the multiple users; 3) Attribute-based access control is applied to realize that the users can access only its own data fields. The bi-level authentication system is also proposed to authenticate the users in multiple levels using 2-level password generation technique which avoids the access of cloud servers from hackers.