A Review on Data Privacy using Attribute-Based Encryption

2017 ◽

Vol 7 (8) ◽

pp. 279

Author(s):

P. Sudheer ◽

T. Lakshmi Surekha

Keyword(s):

Data Privacy ◽

Low Cost ◽

Data Access ◽

Privacy Concerns ◽

Cloud Data ◽

Computing Paradigm ◽

Attribute Based Encryption ◽

Data Content ◽

Identity Privacy ◽

Cloud Servers

Cloud computing is a revolutionary computing paradigm, which enables flexible, on-demand, and low-cost usage of computing resources, but the data is outsourced to some cloud servers, and various privacy concerns emerge from it. Various schemes based on the attribute-based encryption have been to secure the cloud storage. Data content privacy. A semi anonymous privilege control scheme AnonyControl to address not only the data privacy. But also the user identity privacy. AnonyControl decentralizes the central authority to limit the identity leakage and thus achieves semi anonymity. The Anonymity –F which fully prevent the identity leakage and achieve the full anonymity.

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Ciphertext-Policy Attribute-Based Encryption for Cloud Storage: Toward Data Privacy and Authentication in AI-Enabled IoT System

Mathematics ◽

10.3390/math10010068 ◽

2021 ◽

Vol 10 (1) ◽

pp. 68

Author(s):

P. Chinnasamy ◽

P. Deepalakshmi ◽

Ashit Kumar Dutta ◽

Jinsang You ◽

Gyanendra Prasad Joshi

Keyword(s):

Data Privacy ◽

Partial Information ◽

User Privacy ◽

Access Policy ◽

Insider Attack ◽

Attribute Based Encryption ◽

Encryption Schemes ◽

A New Technique ◽

Ciphertext Policy ◽

Cloud Servers

People can store their data on servers in cloud computing and allow public users to access data via data centers. One of the most difficult tasks is to provide security for the access policy of data, which is also needed to be stored at cloud servers. The access structure (policy) itself may reveal partial information about what the ciphertext contains. To provide security for the access policy of data, a number of encryption schemes are available. Among these, CP-ABE (Ciphertext-Policy Attribute-Based Encryption) scheme is very significant because it helps to protect, broadcast, and control the access of information. The access policy that is sent as plaintext in the existing CP-ABE scheme along with a ciphertext may leak user privacy and data privacy. To resolve this problem, we hereby introduce a new technique, which hides the access policy using a hashing algorithm and provides security against insider attack using a signature verification scheme. The proposed system is compared with existing CP-ABE schemes in terms of computation and expressive policies. In addition, we can test the functioning of any access control that could be implemented in the Internet of Things (IoT). Additionally, security against indistinguishable adaptive chosen ciphertext attacks is also analyzed for the proposed work.

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Light Weight Cryptography based Medical Data and Image Encryption Scheme

Webology ◽

10.14704/web/v18i2/web18309 ◽

2021 ◽

Vol 18 (2) ◽

pp. 88-104

Author(s):

M. Raja ◽

Dr.S. Dhanasekaran ◽

Dr.V. Vasudevan

Keyword(s):

Data Privacy ◽

Medical Information ◽

Security Analysis ◽

Encrypted Data ◽

Attribute Based Encryption ◽

Identity Based ◽

Information Confidentiality ◽

Processing And Storage ◽

And Storage ◽

Maintenance Problem

Many medical companies use cloud technology to collect, distribute and transmit medical records. Given the need for medical information, confidentiality is a key issue. In this study, we propose an encrypted scheme based on encrypted data for an electronic healthcare environment. We use hybrid Attribute based encryption and Triple DES encryption technique (ABETDES) scheme, including identity-based cryptography (IBC), to ensure data privacy through communication channels և to improve the reliability of cloud computing. There are also limited indicators of light processing and storage resources. This solves a serious maintenance problem and ensures that a private key is created where it is not blind. The introduction of a security option, a comprehensive security analysis to protect ciphertext, shows that our program is effective against many known attacks and compared to existing methods.

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Privacy-Preserving and Efficient Public Key Encryption with Keyword Search Based on CP-ABE in Cloud

Cryptography ◽

10.3390/cryptography4040028 ◽

2020 ◽

Vol 4 (4) ◽

pp. 28

Author(s):

Yunhong Zhou ◽

Shihui Zheng ◽

Licheng Wang

Keyword(s):

Access Control ◽

Data Privacy ◽

Keyword Search ◽

Good Method ◽

Privacy Preserving ◽

Public Key ◽

Public Key Encryption ◽

Encrypted Data ◽

Fine Grained ◽

Attribute Based Encryption

In the area of searchable encryption, public key encryption with keyword search (PEKS) has been a critically important and promising technique which provides secure search over encrypted data in cloud computing. PEKS can protect user data privacy without affecting the usage of the data stored in the untrusted cloud server environment. However, most of the existing PEKS schemes concentrate on data users’ rich search functionalities, regardless of their search permission. Attribute-based encryption technology is a good method to solve the security issues, which provides fine-grained access control to the encrypted data. In this paper, we propose a privacy-preserving and efficient public key encryption with keyword search scheme by using the ciphertext-policy attribute-based encryption (CP-ABE) technique to support both fine-grained access control and keyword search over encrypted data simultaneously. We formalize the security definition, and prove that our scheme achieves selective indistinguishability security against an adaptive chosen keyword attack. Finally, we present the performance analysis in terms of theoretical analysis and experimental analysis, and demonstrate the efficiency of our scheme.

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A Novel File Hierarchy Access Control Scheme Using Attribute-Based Encryption

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.701-702.911 ◽

2014 ◽

Vol 701-702 ◽

pp. 911-918 ◽

Cited By ~ 1

Author(s):

Shu Lan Wang ◽

Jian Ping Yu ◽

Peng Zhang ◽

Ping Wang

Keyword(s):

Access Control ◽

Data Privacy ◽

Access Structure ◽

Secret Key ◽

Chosen Plaintext Attack ◽

Fine Grained ◽

Access Structures ◽

Diffie Hellman ◽

Attribute Based Encryption ◽

Control Scheme

Attribute-based encryption (ABE) can keep data privacy and realize fine-grained access control. However, the notion of file hierarchy hasn't been presented until now. The problem, the multiple hierarchical files to be shared only using once encryption scheme, cannot be effectively solved. Based on the access structure layered model, a novel access control scheme about file hierarchy is proposed by using ABE to solve the problem. The proposed scheme will not only decrease the number of access structures to one, but also only require a secret key to decrypt all the authorization files. It is proved to be secure against the chosen-plaintext attack (CPA) under the decision bilinear Diffie-Hellman (DBDH) assumption. In addition, the performance analysis results indicate that the proposed scheme is efficient and practical when a large number of hierarchical files are shared.

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BCAS: A blockchain-based ciphertext-policy attribute-based encryption scheme for cloud data security sharing

International Journal of Distributed Sensor Networks ◽

10.1177/1550147721999616 ◽

2021 ◽

Vol 17 (3) ◽

pp. 155014772199961

Author(s):

Yuting Zuo ◽

Zhaozhe Kang ◽

Jian Xu ◽

Zhide Chen

Keyword(s):

Data Privacy ◽

Discrete Logarithm ◽

Third Parties ◽

Third Party ◽

Encryption Scheme ◽

Cloud Data ◽

Attribute Based Encryption ◽

Encryption Schemes ◽

Trusted Third Parties ◽

Ciphertext Policy

It is the most important and challenging problem to share the data safely in cloud computing. Some so-called trusted third parties may also infringe users’ data privacy. It is an urgent problem for data owners to share data safely with the designated users rather than the third party or other users. Traditional encryption schemes utilize different keys to produce multiple encrypted copies of the same data for users. It is no longer applicable for cloud data sharing security. Attribute-based encryption can solve above problems, but it needs to rely on trusted third parties to protect the users’ privacy. In this article, in order to address the above problems, we propose a blockchain-based ciphertext-policy attribute-based encryption scheme for cloud data secure sharing without relying on any trusted third parties. Blockchain-based ciphertext-policy attribute-based encryption scheme can protect the rights and security of data owner. Compared with existing cloud security schemes, the proposed scheme has more advantages in terms of the six aspects: (1) data owners have the authority to decide who can decrypt the data; (2) the operations of users are retained permanently, and all records are tamper-proof; (3) our proposed scheme has the characteristic of “one-to-many” encryption, and data is encrypted only once; (4) our scheme does not rely on any trusted third party; (5) in terms of the discrete logarithm problem and decisional q parallel-bilinear Diffie–Hellman exponent problem, we prove that our proposed scheme is secure; and (6) experiment shows that our proposed scheme is more efficient than the comparative scheme.

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A Survey on Security Models for Data Privacy in Big Data Analytics

Asian Journal of Computer Science and Technology ◽

10.51983/ajcst-2018.7.s1.1798 ◽

2018 ◽

Vol 7 (S1) ◽

pp. 87-89

Author(s):

Avula Satya Sai Kumar ◽

S. Mohan ◽

R. Arunkumar

Keyword(s):

Big Data ◽

Access Control ◽

Data Analytics ◽

Data Privacy ◽

Big Data Analytics ◽

Private Key ◽

Access Structures ◽

Security Models ◽

Attribute Based Encryption ◽

And Performance

As emerging data world like Google and Wikipedia, volume of the data growing gradually for centralization and provide high availability. The storing and retrieval in large volume of data is specialized with the big data techniques. In addition to the data management, big data techniques should need more concentration on the security aspects and data privacy when the data deals with authorized and confidential. It is to provide secure encryption and access control in centralized data through Attribute Based Encryption (ABE) Algorithm. A set of most descriptive attributes is used as categorize to produce secret private key and performs access control. Several works proposed in existing based on the different access structures of ABE algorithms. Thus the algorithms and the proposed applications are literally surveyed and detailed explained and also discuss the functionalities and performance aspects comparison for desired ABE systems.

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Efficient access control with traceability and user revocation in IoT

Multimedia Tools and Applications ◽

10.1007/s11042-021-11286-0 ◽

2021 ◽

Author(s):

Yi Wu ◽

Wei Zhang ◽

Hu Xiong ◽

Zhiguang Qin ◽

Kuo-Hui Yeh

Keyword(s):

Internet Of Things ◽

Mobile Devices ◽

Data Privacy ◽

Constant Size ◽

Security Proof ◽

Attribute Based Encryption ◽

Efficient Access ◽

Cloud Server ◽

User Revocation ◽

Ciphertext Policy

AbstractWith the universality and availability of Internet of Things (IoT), data privacy protection in IoT has become a hot issue. As a branch of attribute-based encryption (ABE), ciphertext policy attribute-based encryption (CP-ABE) is widely used in IoT to offer flexible one-to-many encryption. However, in IoT, different mobile devices share messages collected, transmission of large amounts of data brings huge burdens to mobile devices. Efficiency is a bottleneck which restricts the wide application and adoption of CP-ABE in Internet of things. Besides, the decryption key in CP-ABE is shared by multiple users with the same attribute, once the key disclosure occurs, it is non-trivial for the system to tell who maliciously leaked the key. Moreover, if the malicious mobile device is not revoked in time, more security threats will be brought to the system. These problems hinder the application of CP-ABE in IoT. Motivated by the actual need, a scheme called traceable and revocable ciphertext policy attribute-based encryption scheme with constant-size ciphertext and key is proposed in this paper. Compared with the existing schemes, our proposed scheme has the following advantages: (1) Malicious users can be traced; (2) Users exiting the system and misbehaving users are revoked in time, so that they no longer have access to the encrypted data stored in the cloud server; (3) Constant-size ciphertext and key not only improve the efficiency of transmission, but also greatly reduce the time spent on decryption operation; (4) The storage overhead for traceability is constant. Finally, the formal security proof and experiment has been conducted to demonstrate the feasibility of our scheme.

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