Co-Check: Collaborative Outsourced Data Auditing in Multicloud Environment

With the increasing demand for ubiquitous connectivity, wireless technology has significantly improved our daily lives. Meanwhile, together with cloud-computing technology (e.g., cloud storage services and big data processing), new wireless networking technology becomes the foundation infrastructure of emerging communication networks. Particularly, cloud storage has been widely used in services, such as data outsourcing and resource sharing, among the heterogeneous wireless environments because of its convenience, low cost, and flexibility. However, users/clients lose the physical control of their data after outsourcing. Consequently, ensuring the integrity of the outsourced data becomes an important security requirement of cloud storage applications. In this paper, we present Co-Check, a collaborative multicloud data integrity audition scheme, which is based on BLS (Boneh-Lynn-Shacham) signature and homomorphic tags. According to the proposed scheme, clients can audit their outsourced data in a one-round challenge-response interaction with low performance overhead. Our scheme also supports dynamic data maintenance. The theoretical analysis and experiment results illustrate that our scheme is provably secure and efficient.

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Public Data Integrity Verification Scheme for Secure Cloud Storage

Information ◽

10.3390/info11090409 ◽

2020 ◽

Vol 11 (9) ◽

pp. 409

Author(s):

Yuan Ping ◽

Yu Zhan ◽

Ke Lu ◽

Baocang Wang

Keyword(s):

Cloud Storage ◽

Data Privacy ◽

Data Integrity ◽

Third Party ◽

Divide And Conquer ◽

Data Outsourcing ◽

Verification Scheme ◽

Integrity Verification ◽

Outsourced Data ◽

Public Data

Although cloud storage provides convenient data outsourcing services, an untrusted cloud server frequently threatens the integrity and security of the outsourced data. Therefore, it is extremely urgent to design security schemes allowing the users to check the integrity of data with acceptable computational and communication overheads. In this paper, we first propose a public data integrity verification scheme based on the algebraic signature and elliptic curve cryptography. This scheme not only allows the third party authority deputize for users to verify the outsourced data integrity, but also resists malicious attacks such as replay attacks, replacing attack and forgery attacks. Data privacy is guaranteed by symmetric encryption. Furthermore, we construct a novel data structure named divide and conquer hash list, which can efficiently perform data updating operations, such as deletion, insertion, and modification. Compared with the relevant schemes in the literature, security analysis and performance evaluations show that the proposed scheme gains some advantages in integrity verification and dynamic updating.

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Overview of current techniques in remote data auditing

Applied Mathematics and Nonlinear Sciences ◽

10.21042/amns.2016.1.00011 ◽

2016 ◽

Vol 1 (1) ◽

pp. 145-158 ◽

Cited By ~ 9

Author(s):

Hualong Wu ◽

Bo Zhao

Keyword(s):

Data Storage ◽

Erasure Coding ◽

Network Access ◽

Data Outsourcing ◽

Local Data ◽

Cloud Data ◽

Resource Pooling ◽

Outsourced Data ◽

Data Auditing ◽

Remote Data

AbstractThe emergence of cloud computing brings the infinite imagination space, both in individual and organizations, due to its unprecedented advantages in the IT history: on-demand self-service, ubiquitous network access, location independent resource pooling, rapid resource elasticity, usage-based pricing and transference of risk. Many of the individuals or organizations ease the pressure on their local data storage, and mitigate the maintenance overhead of local data storage by using outsource data to cloud. However, the data outsourcing is not absolutely safe in the cloud. In order to enhance the users’ confidence of the integrity of their outsource data in the cloud. To promote the rapid deployment of cloud data storage service and regain security assurances with outsourced data dependability, many scholars tend to design the Remote Data Auditing (RDA) technique as a new concept to enable public auditability for the outsourced data in the cloud. The RDA is a useful technique to ensure the correctness of the data outsourced to cloud servers. This paper presents a comprehensive survey on techniques of remote data auditing in cloud server. Recently, more and more remote auditing approaches are categorized into the three different classes, that is, replication-based, erasure coding-based, and network coding-based to present a taxonomy. This paper also aims to the explore major issues.

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PMAB: A Public Mutual Audit Blockchain for Outsourced Data in Cloud Storage

Security and Communication Networks ◽

10.1155/2021/9993855 ◽

2021 ◽

Vol 2021 ◽

pp. 1-11

Author(s):

Hanzhe Yang ◽

Ruidan Su ◽

Pei Huang ◽

Yuhan Bai ◽

Kai Fan ◽

...

Keyword(s):

Cloud Storage ◽

Service Providers ◽

Low Cost ◽

Cloud Service ◽

Third Party ◽

Rigorous Analysis ◽

Security Issues ◽

Outsourced Data ◽

Audit Data ◽

And Performance

With the rapid growth of data, limited by the storage capacity, more and more IoT applications choose to outsource data to Cloud Service Providers (CSPs). But, in such scenarios, outsourced data in cloud storage can be easily corrupted and difficult to be found in time, which brings about potential security issues. Thus, Provable Data Possession (PDP) protocol has been extensively researched due to its capability of supporting efficient audit for outsourced data in cloud. However, most PDP schemes require the Third-Party Auditor (TPA) to audit data for Data Owners (DOs), which requires the TPA to be trustworthy and fair. To eliminate the TPA, we present a Public Mutual Audit Blockchain (PMAB) for outsourced data in cloud storage. We first propose an audit chain architecture based on Ouroboros and an incentive mechanism based on credit to allow CSPs to audit each other mutually with anticollusion (any CSP is not willing to help other CSPs conceal data problems). Then, we design an audit protocol to achieve public audit efficiently with low cost of audit verification. Rigorous analysis explains the security of PMAB using game theory, and performance analysis shows the efficiency of PMAB using the real-world dataset.

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A Continuous Sampling Method for Batch Data Auditing in Cloud Storage

International Journal of Information Systems in the Service Sector ◽

10.4018/ijisss.2021040101 ◽

2021 ◽

Vol 13 (2) ◽

pp. 1-12

Author(s):

Esther Daniel ◽

Durga S. ◽

Vijila M.

Keyword(s):

Cloud Storage ◽

Service Providers ◽

Low Cost ◽

Cloud Service ◽

Probability Of Detection ◽

Easy Access ◽

Time Data ◽

Continuous Sampling ◽

Data Auditing ◽

Online Storage

Cloud storage offers online storage services to back up data and enables easy access to real-time data at any time and on the fly. The primary issue of security arises as the data is outsourced to remote servers that cause data loss and modifications to occur. Data corruptions or misbehaviours in the cloud service providers (CSP) have to be detected at low cost and promptly. The data outsourced to CSP by the data owners might suffer from cloud service provider misbehaviour, in particular unauthorized deletion of data by CSP to save storage space towards attracting potential clients. Adapting continuous sampling of random blocks as batches reduce the computation workload on the servers, thus detecting the modifications or corruptions if any without time delays. The corrupted data blocks are located with continuous sampling methods and the probability of detection is high.

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Performance Evaluation of Secure Data Transmission Mechanism (SDTM) for Cloud Outsourced Data and Transmission Layer Security (TLS)

Cloud Technology ◽

10.4018/978-1-4666-6539-2.ch038 ◽

2015 ◽

pp. 839-844

Author(s):

Abdullah A. Alhaj

Keyword(s):

Communication Networks ◽

Data Transmission ◽

Security Policy ◽

Transmission Mechanism ◽

Network Access ◽

Security Issues ◽

Outsourced Data ◽

Secure Data ◽

Secure Data Transmission ◽

Increasing Demand

The Cloud has become a significant topic in computing; however, the trend has established a new range of security issues that need to be addressed. In Cloud, the data and associated software are not under their control. In addition, with the growing demands for Cloud networks communication. With the increasing demand for computer communications the need for security is growing dramatically. The existing research related to security mechanisms focuses on security of the data transmission in the communication networks only. The authors developed specific Secure Data Transmission Mechanism (S SDTM) for cloud outsourced data is a set of technologies and solutions to enforce security policy and bandwidth compliance on all devices seeking to access network computing resources, in order to limit damage from emerging security threats and to allow network access only to compliant and trusted endpoint devices. IPSec is a suite of protocols that adds security to communications at the IP level. Protocols within the IPSec suite make extensive use of cryptographic algorithms. Since these algorithms are computationally sophisticated, some hardware accelerators are needed to support high throughput. In this paper, the authors compare between secure data transmission mechanism for cloud outsourced data with preemption control algorithm and TLS to improve the properties of the S SDTM and the Virtual Private Networks (VPN) built with both protocols.

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Synthesis, Structure and Diffusion Pathways of Fast Lithium-Ion Conductors in the Polymorphs α- and β-Li8SnP4

Journal of Materials Chemistry A ◽

10.1039/d1ta03021c ◽

2021 ◽

Author(s):

Thomas F Fässler ◽

Stefan Strangmüller ◽

Henrik Eickkhoff ◽

Wilhelm Klein ◽

Gabriele Raudaschl-Sieber ◽

...

Keyword(s):

High Performance ◽

Low Cost ◽

Lithium Ion ◽

Conducting Materials ◽

Increasing Demand ◽

Battery Technology ◽

Lithium Ion Conductors ◽

And Diffusion ◽

Ion Conductors

The increasing demand for a high-performance and low-cost battery technology promotes the search for Li+-conducting materials. Recently, phosphidotetrelates and aluminates were introduced as an innovative class of phosphide-based Li+-conducting materials...

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A Blockchain-Based Multi-Cloud Storage Data Auditing Scheme to Locate Faults

IEEE Transactions on Cloud Computing ◽

10.1109/tcc.2021.3057771 ◽

2021 ◽

pp. 1-1

Author(s):

Cheng Zhang ◽

Yang Xu ◽

Yupeng Hu ◽

J. Wu ◽

Ju Ren ◽

...

Keyword(s):

Cloud Storage ◽

Data Auditing ◽

Multi Cloud

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What If Keys Are Leaked? towards Practical and Secure Re-Encryption in Deduplication-Based Cloud Storage

Information ◽

10.3390/info12040142 ◽

2021 ◽

Vol 12 (4) ◽

pp. 142

Author(s):

Weijing You ◽

Lei Lei ◽

Bo Chen ◽

Limin Liu

Keyword(s):

Experimental Evaluation ◽

Cloud Storage ◽

Security Analysis ◽

Encrypted Data ◽

Cloud Data ◽

Storage Cost ◽

Outsourced Data ◽

Proof Of Ownership ◽

Client Side ◽

Over Time

By only storing a unique copy of duplicate data possessed by different data owners, deduplication can significantly reduce storage cost, and hence is used broadly in public clouds. When combining with confidentiality, deduplication will become problematic as encryption performed by different data owners may differentiate identical data which may then become not deduplicable. The Message-Locked Encryption (MLE) is thus utilized to derive the same encryption key for the identical data, by which the encrypted data are still deduplicable after being encrypted by different data owners. As keys may be leaked over time, re-encrypting outsourced data is of paramount importance to ensure continuous confidentiality, which, however, has not been well addressed in the literature. In this paper, we design SEDER, a SEcure client-side Deduplication system enabling Efficient Re-encryption for cloud storage by (1) leveraging all-or-nothing transform (AONT), (2) designing a new delegated re-encryption (DRE), and (3) proposing a new proof of ownership scheme for encrypted cloud data (PoWC). Security analysis and experimental evaluation validate security and efficiency of SEDER, respectively.

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Towards a Glass New World: The Role of Ion-Exchange in Modern Technology

Applied Sciences ◽

10.3390/app11104610 ◽

2021 ◽

Vol 11 (10) ◽

pp. 4610

Author(s):

Simone Berneschi ◽

Giancarlo C. Righini ◽

Stefano Pelli

Keyword(s):

Ion Exchange ◽

Communication Networks ◽

High Speed ◽

High Performance ◽

Low Cost ◽

Modern Technology ◽

Historical Background ◽

Wide Range ◽

Happy Marriage

Glasses, in their different forms and compositions, have special properties that are not found in other materials. The combination of transparency and hardness at room temperature, combined with a suitable mechanical strength and excellent chemical durability, makes this material indispensable for many applications in different technological fields (as, for instance, the optical fibres which constitute the physical carrier for high-speed communication networks as well as the transducer for a wide range of high-performance sensors). For its part, ion-exchange from molten salts is a well-established, low-cost technology capable of modifying the chemical-physical properties of glass. The synergy between ion-exchange and glass has always been a happy marriage, from its ancient historical background for the realisation of wonderful artefacts, to the discovery of novel and fascinating solutions for modern technology (e.g., integrated optics). Getting inspiration from some hot topics related to the application context of this technique, the goal of this critical review is to show how ion-exchange in glass, far from being an obsolete process, can still have an important impact in everyday life, both at a merely commercial level as well as at that of frontier research.

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Voice In Ear

Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies ◽

10.1145/3448113 ◽

2021 ◽

Vol 5 (1) ◽

pp. 1-25

Author(s):

Yang Gao ◽

Yincheng Jin ◽

Jagmohan Chauhan ◽

Seokmin Choi ◽

Jiyang Li ◽

...

Keyword(s):

User Authentication ◽

Low Cost ◽

The Body ◽

Ear Canal ◽

Replay Attacks ◽

Increasing Demand ◽

The Right ◽

Sound Conduction ◽

Enrollment Data ◽

Secure Authentication

With the rapid growth of wearable computing and increasing demand for mobile authentication scenarios, voiceprint-based authentication has become one of the prevalent technologies and has already presented tremendous potentials to the public. However, it is vulnerable to voice spoofing attacks (e.g., replay attacks and synthetic voice attacks). To address this threat, we propose a new biometric authentication approach, named EarPrint, which aims to extend voiceprint and build a hidden and secure user authentication scheme on earphones. EarPrint builds on the speaking-induced body sound transmission from the throat to the ear canal, i.e., different users will have different body sound conduction patterns on both sides of ears. As the first exploratory study, extensive experiments on 23 subjects show the EarPrint is robust against ambient noises and body motions. EarPrint achieves an Equal Error Rate (EER) of 3.64% with 75 seconds enrollment data. We also evaluate the resilience of EarPrint against replay attacks. A major contribution of EarPrint is that it leverages two-level uniqueness, including the body sound conduction from the throat to the ear canal and the body asymmetry between the left and the right ears, taking advantage of earphones' paring form-factor. Compared with other mobile and wearable biometric modalities, EarPrint is a low-cost, accurate, and secure authentication solution for earphone users.

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