Attribute-based encryption for cloud computing access control: A survey

National Research Foundation (NRF) Singapore; AXA Research Fun

A Novel Technique for Cloud Computing Data Security and Public Auditing

In prior years, the fast improvement of cloud storage services makes it simpler than at any other time for cloud clients to disseminate information (data) with everyone. To ensure client's trust in the dependability of their public information on the cloud, various strategies have been proposed for information trustworthiness assessing with spotlights on different viable components, secure data destructing, public integrity auditing and so forth.. Since it is not achievable to execute full lifecycle protection security, access control turns into a testing assignment, particularly when we share delicate information on cloud servers. To handle this issue, proposed framework presents a key strategy trait based encryption with time-determined properties (KP-TSABE), another safe information self-destructing framework in distributed computing. Moreover open respectability inspecting frameworks presented for cloud information sharing administrations that check the uprightness of client's delicate information being put away in the cloud. In the KP-TABE plan, each figure content is marked with a period interim while the private key is connected with a period moment. The figure message just is unscrambled if both the time instant is in the permitted time interim and traits which are connected with the figure content guarantee the key's entrance structure. Also, Third Party Auditing (TPA) is acquainted with help clients to assess the danger of their subscribed cloud data administrations. The review result from TPA would likewise be useful for the cloud administration suppliers to upgrade cloud-based administration stage

Index Generation and Secure Multi-User Access Control over an Encrypted Cloud Data

Cloud computing provides economical and effective solution for sharing data among cloud users with low maintenance cost. The security of data and identity confidentiality while sharing data in multi-owner way cannot be assured by the Cloud Service Providers (CSP’s). The Cloud Service Providers are reliable but curious to know the recurrent membership changes in the cloud. In this paper,we propose a secure multi-owner data sharing for dynamic group in the cloud with RSA Chinese Remainder Theorem (RSA-CRT)encryption technique and substring index generation method. RSA-CRT efficiently manages revocation list, key management, with reduced storage and computational overhead. The substring Index generation algorithm reduces the storage space compared to wild card fuzzy alogorithm1

Two Level Security for Cloud Storage with Data Deduplication

Cloud computing provides number of services to client over internet. Storage service is one of the important services that people used now days for storing data on network so that they can access their data from anywhere and anytime. With the benefit of storage service there is an issue of security. To overcome security problem the proposed system contain two levels of securities and to reduce the unwanted storage space de-duplication technique is involved. To increase the level of security one technique is a session password. Session passwords can be used only once and every time a new password is generated. To protect the confidentiality of sensitive data while supporting de-duplication, the convergent encryption technique has been proposed to encrypt the data before outsourcing. Symmetric key algorithm uses same key for both encryption and decryption. In this paper, I will focus on session based authentication for login, encryption for files and duplication check for reduce space of storage on cloud. DOI: 10.17762/ijritcc2321-8169.150612

An Application for Decentralized Access Control Mechanism on Cloud Data using Anonymous Authentication

In the last few years, Cloud computing has gained a lot of popularity and technology analysts believe it will be the future, but only if the security problems are solved from time-to-time. For those who are unfamiliar with cloud computing, it is a practice wherein users can access the data from the servers that are located in remote places. Users can do so through the Internet to manage, process and store the relevant data, instead of depending on the personal computer or a local server. Many firms and organizations are using cloud computing, which eventually is faster, cheaper and easy to maintain. Even the regular Internet users are also relying on cloud computing services to access their files whenever and wherever they wish. There are also numerous challenges associated with cloud computing like abuse of cloud services, data security and cyber-attacks. When clients outsource sensitive data through cloud servers, access control is one of the fundamental requirements among all security requirements which ensures that no unauthorized access to secured data will be avoided. Hence, cloud computing has to build a feature that provides privacy, access control challenges and security to the user data. A suitable and reliable encryption technique with enhanced key management should be developed and applied to the user data before loading into the cloud with the goal to achieve secured storage. It also has to support file access control and all other files related functions in a policy-based manner for any file stored in a cloud environment. This research paper proposes a decentralized access control mechanism for the data storage security in clouds which also provides anonymous authentication. This mechanism allows the decryption of the stored information only by the valid users, which is an additional feature of access control. Access control mechanism are decentralized which makes it robust when compared to centralized access control schemes meant for clouds