International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Secure Data Sharing In an Untrusted CloudIJERA Editor
Cloud computing is a huge area which basically provides many services on the basis of pay as you go. One of the fundamental services provided by cloud is data storage. Cloud provides cost efficiency and an efficient solution for sharing resource among cloud users. A secure and efficient data sharing scheme for groups in cloud is not an easy task. On one hand customers are not ready to share their identity but on other hand want to enjoy the cost efficiency provided by the cloud. It needs to provide identity privacy, multiple owner and dynamic data sharing without getting effected by the number of cloud users revoked. In this paper, any member of a group can completely enjoy the data storing and sharing services by the cloud. A secure data sharing scheme for dynamic cloud users is proposed in this paper. For which it uses group signature and dynamic broadcast encryption techniques such that any user in a group can share the information in a secured manner. Additionally the permission option is proposed for the security reasons. This means the file access permissions are generated by the admin and given to the user using Role Based Access Control (RBA) algorithm. The file access permissions are read, write and delete. In this, owner can provide files with options and accepts the users using that option. The revocation of cloud user is a function generated by the Admin for security purpose. The encryption computational cost and storage overhead is not dependent on the number of users revoked. We analyze the security by proofs and produce the cloud efficiency report using cloudsim.
Accessing secured data in cloud computing environmentIJNSA Journal
Number of businesses using cloud computing has increased dramatically over the last few years due to the attractive features such as scalability, flexibility, fast start-up and low costs. Services provided over the web are ranging from using provider’s software and hardware to managing security and other issues. Some of the biggest challenges at this point are providing privacy and data security to subscribers of public cloud servers. An efficient encryption technique presented in this paper can be used for secure access to and storage of data on public cloud server, moving and searching encrypted data through communication channels while protecting data confidentiality. This method ensures data protection against both external and internal intruders. Data can be decrypted only with the provided by the data owner key, while public cloud server is unable to read encrypted data or queries. Answering a query does not depend on it size and done in a constant time. Data access is managed by the data owner. The proposed schema allows unauthorized modifications detection
Securely Data Forwarding and Maintaining Reliability of Data in Cloud ComputingIJERA Editor
Cloud works as an online storage servers and provides long term storage services over the internet. It is like a third party in whom we can store a data so they need data confidentiality, robustness and functionality. Encryption and encoding methods are used to solve such problems. After that divide proxy re-encryption scheme and integrating it with a decentralized erasure code such that a secure distributed storage system is formulated. The distributed storage system not only supports secure, robust data storage and retrieval but also lets the user forward his data to another user without retrieving the data. A concept of backup in same server allows users to retrieve failure data successfully in the storage server and also forward to another user without retrieving the data back. This is an attempt to provide light-weight approach which protects data access in distributed storage servers. User can implement all important concept i.e. Confidentiality for security, Robustness for healthy data, Reliability for flexible data, Availability for compulsory data will be achieved to another user which is store in cloud and easily overcome problem of “Securely data forwarding and maintaining, reliability of data in cloud computing “using different type of Methodology and Technology.
Secure Data Sharing In an Untrusted CloudIJERA Editor
Cloud computing is a huge area which basically provides many services on the basis of pay as you go. One of the fundamental services provided by cloud is data storage. Cloud provides cost efficiency and an efficient solution for sharing resource among cloud users. A secure and efficient data sharing scheme for groups in cloud is not an easy task. On one hand customers are not ready to share their identity but on other hand want to enjoy the cost efficiency provided by the cloud. It needs to provide identity privacy, multiple owner and dynamic data sharing without getting effected by the number of cloud users revoked. In this paper, any member of a group can completely enjoy the data storing and sharing services by the cloud. A secure data sharing scheme for dynamic cloud users is proposed in this paper. For which it uses group signature and dynamic broadcast encryption techniques such that any user in a group can share the information in a secured manner. Additionally the permission option is proposed for the security reasons. This means the file access permissions are generated by the admin and given to the user using Role Based Access Control (RBA) algorithm. The file access permissions are read, write and delete. In this, owner can provide files with options and accepts the users using that option. The revocation of cloud user is a function generated by the Admin for security purpose. The encryption computational cost and storage overhead is not dependent on the number of users revoked. We analyze the security by proofs and produce the cloud efficiency report using cloudsim.
Accessing secured data in cloud computing environmentIJNSA Journal
Number of businesses using cloud computing has increased dramatically over the last few years due to the attractive features such as scalability, flexibility, fast start-up and low costs. Services provided over the web are ranging from using provider’s software and hardware to managing security and other issues. Some of the biggest challenges at this point are providing privacy and data security to subscribers of public cloud servers. An efficient encryption technique presented in this paper can be used for secure access to and storage of data on public cloud server, moving and searching encrypted data through communication channels while protecting data confidentiality. This method ensures data protection against both external and internal intruders. Data can be decrypted only with the provided by the data owner key, while public cloud server is unable to read encrypted data or queries. Answering a query does not depend on it size and done in a constant time. Data access is managed by the data owner. The proposed schema allows unauthorized modifications detection
Securely Data Forwarding and Maintaining Reliability of Data in Cloud ComputingIJERA Editor
Cloud works as an online storage servers and provides long term storage services over the internet. It is like a third party in whom we can store a data so they need data confidentiality, robustness and functionality. Encryption and encoding methods are used to solve such problems. After that divide proxy re-encryption scheme and integrating it with a decentralized erasure code such that a secure distributed storage system is formulated. The distributed storage system not only supports secure, robust data storage and retrieval but also lets the user forward his data to another user without retrieving the data. A concept of backup in same server allows users to retrieve failure data successfully in the storage server and also forward to another user without retrieving the data back. This is an attempt to provide light-weight approach which protects data access in distributed storage servers. User can implement all important concept i.e. Confidentiality for security, Robustness for healthy data, Reliability for flexible data, Availability for compulsory data will be achieved to another user which is store in cloud and easily overcome problem of “Securely data forwarding and maintaining, reliability of data in cloud computing “using different type of Methodology and Technology.
Enhanced Data Partitioning Technique for Improving Cloud Data Storage SecurityEditor IJMTER
Cloud computing is a model for enabling for on demand network access to shared
configurable computing resources (e.g. networks, servers, storage, applications, and services).It is
based on virtualization and distributed computing technologies. Cloud Data storage systems enable
user to store data efficiently on server without any trouble of data resources. User can easily store
and retrieve their data remotely. The two biggest concerns about cloud data storage are reliability and
security. Clients aren’t like to entrust their data to another third party or companies without a
guarantee that they will be able to access therein formations whenever they want. In the existing
system, the data are stored in the cloud using dynamic data operation with computation which makes
the user need to make a copy for further updating and verification of the data loss. Different
distributed storing auditing techniques are used for overcoming the problem of data loss. Recent
work of this paper has show that data partitioning technique used for data storage by providing
Digital signature to every partitioning data and user .this technique allow user to upload or retrieve
the data with matching the digital signatures provided to them. This method ensures high cloud
storage integrity, enhanced error localization and easy identification of misbehaving server and
unauthorized access to the cloud server. Hence this work aims to store the data securely in reduced
space with less time and computational cost.
Improve HLA based Encryption Process using fixed Size Aggregate Key generationEditor IJMTER
Cloud computing is an innovative idea for IT industries which provides several services to
users. In cloud computing secure authentication and data integrity of data is a major challenge, due to
internal and external threats. For improvement in data security over cloud, various techniques are
used.MAC based authentication is one of them, which suffers from undesirable systematic demerits
which have bounded usage and not secure verification, which may pose additional online load to users,
in a public auditing setting. Reliable and secure auditing are also challenging in cloud. In Cloud auditing
existing audit systems are based on aggregate key HLA algorithm. This algorithm is based on variable
sizes, different aggregate key generation, which encounters with security issues at decryption level.
Current Scheme generates a high length of key decryption that encounters with problem of space
complexity. To overcome these issues, We can improve HLA algorithm by improve aggregate key
generation, based on fixed key size. This algorithm generates constant aggregate key which will
overcomes problem of sharing of keys, security issues and space complexity.
Secure Redundant Data Avoidance over Multi-Cloud Architecture. IJCERT JOURNAL
Redundant data avoidance systems, the Private Cloud are involved as a proxy to allow data owner/users to securely perform duplicate check with differential privileges. Such architecture is practical and has attracted much attention from researchers. The data owners only outsource their data storage by utilizing public cloud while the data operation is managed in private cloud, in this connection our presented system has follows traditional encryption while providing data confidentiality, is incompatible with redundant data avoidance. Identical data copies of different users will lead to different ciphertexts, making data avoidance impossible. To address above issues convergent encryption technique has been proposed to encrypt the data before outsourcing. To better protect data security, this paper makes the first attempt to formally address the problem of authorized redundant data avoidance. Different from traditional redundant data avoidance systems, the differential privileges of users are further considered in duplicate check besides the data itself. We also present several new redundant data avoidance constructions supporting authorized duplicate check in a multi-cloud architecture. Security analysis demonstrates that our scheme is secure in terms of the definitions specified in the proposed security model. In order to perform secure access controlling scheme user may satisfy fine-grained approach at cloud level towards access restricting from unauthorized users or adversaries.
Security Check in Cloud Computing through Third Party Auditorijsrd.com
In cloud computing, data owners crowd their data on cloud servers and users (data consumers) can access the data from cloud servers. Due to the data outsourcing, however, it requires an independent auditing service to check the data integrity in the cloud. Some existing remote integrity checking method scan only serve for static records data. Thus, cannot be used in the auditing service since the data in the cloud can be animatedly updated. Thus, an efficient and secure dynamic auditing protocol is required to convince data owners that the data are correctly stored in the cloud. In this paper, we first design an auditing framework for cloud storage systems for privacy-preserving auditing protocol. Then, we extend our auditing protocol to support the data dynamic operations, which is efficient to secure the random model.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
A robust and verifiable threshold multi authority access control system in pu...IJARIIT
Attribute-based Encryption is observed as a promising cryptographic leading tool to assurance data owners’ direct
regulator over their data in public cloud storage. The former ABE schemes include only one authority to maintain the whole
attribute set, which can carry a single-point bottleneck on both security and performance. Then, certain multi-authority
schemes are planned, in which numerous authorities distinctly maintain split attribute subsets. However, the single-point
bottleneck problem remains unsolved. In this survey paper, from another perspective, we conduct a threshold multi-authority
CP-ABE access control scheme for public cloud storage, named TMACS, in which multiple authorities jointly manage a
uniform attribute set. In TMACS, taking advantage of (t, n) threshold secret allocation, the master key can be shared among
multiple authorities, and a lawful user can generate his/her secret key by interacting with any t authorities. Security and
performance analysis results show that TMACS is not only verifiable secure when less than t authorities are compromised, but
also robust when no less than t authorities are alive in the system. Also, by efficiently combining the traditional multi-authority
scheme with TMACS, we construct a hybrid one, which satisfies the scenario of attributes coming from different authorities as
well as achieving security and system-level robustness.
Enhancement of the Cloud Data Storage Architectural Framework in Private CloudINFOGAIN PUBLICATION
The data storage in the cloud typically resides in a service providing environment collocated with data from different clients. The institutions or organizations moving the sensitive and regulated data into the cloud in order to maintain the account for the means by which the access data is controlled and the data is kept secure. Data can take many forms. The cloud based application development; it includes the application programs, scripts, and configuration settings, along with the development tools. For deployed applications, it includes records and other content created or used by the applications, as well as account information about the users of the applications. Access controls are one means to keep data away from unauthorized users; encryption is another. Access controls are typically identity-based, which makes authentication of the user’s identity an important issue in cloud computing. In this research paper focus the cloud data storage architectural frame work of encrypted data.
Control Cloud Data Access Using Attribute-Based Encryptionpaperpublications3
Abstract: Cloud computing is a revolutionary computing paradigm which enables flexible, on-demand and low-cost usage of computing resources. Those advantages, ironically, are the causes of security and privacy problems, which emerge because the data owned by different users are stored in some cloud servers instead of under their own control. To deal with security problems, various schemes based on the Attribute-Based Encryption have been proposed recently. Data access control is an effective way to ensure the data security in the cloud. However, due to data outsourcing and untrusted cloud servers, the data access control becomes a challenging issue in cloud storage systems. Data security is the key concern in the distributed system. Various schemes based on the attribute-based encryption have been proposed to secure the cloud storage. However, most work focuses on the data contents privacy and the access control, while less attention is paid to the privilege control and the identity privacy. In this paper, we present a semianonymous privilege control scheme AnonyControl to address not only the data privacy, but also the user identity privacy in existing access control schemes. AnonyControl decentralizes the central authority to limit the identity leakage and thus achieves semianonymity. Besides, it also generalizes the file access control to the privilege control, by which privileges of all operations on the cloud data can be managed in a fine-grained manner. Subsequently, we present the AnonyControl-F, which fully prevents the identity leakage and achieve the full anonymity. Our security analysis shows that both AnonyControl and AnonyControl-F are secure under the decisional bilinear Diffie–Hellman assumption, and our performance evaluation exhibits the feasibility of our schemes.
Unit 3 -Data storage and cloud computingMonishaNehkal
Data storage
Cloud storage
Cloud storage from LANs to WANs
Cloud computing services
Cloud computing at work
File system
Data management
Management services
Cloud Computing Using Encryption and Intrusion Detectionijsrd.com
Cloud computing provides many benefits to the users such as accessibility and availability. As the data is available over the cloud, it can be accessed by different users. There may be sensitive data of organization. This is the one issue to provide access to authenticated users only. But the data can be accessed by the owner of the cloud. So to avoid getting data being accessed by the cloud owner, we will use the intrusion detection system to provide security to the data. The other issue is to save the data backup in other cloud in encrypted form so that load balancing can be done. This will help the user with data availability in case of failure of one cloud.
A Secure Multi-Owner Data Sharing Scheme for Dynamic Group in Public Cloud. IJCERT JOURNAL
In cloud computing outsourcing group resource among cloud users is a major challenge, so cloud computing provides a low-cost and well-organized solution. Due to frequent change of membership, sharing data in a multi-owner manner to an untrusted cloud is still its challenging issue. In this paper we proposed a secure multi-owner data sharing scheme for dynamic group in public cloud. By providing AES encryption with convergent key while uploading the data, any cloud user can securely share data with others. Meanwhile, the storage overhead and encryption computation cost of the scheme are independent with the number of revoked users. In addition, I analyze the security of this scheme with rigorous proofs. One-Time Password is one of the easiest and most popular forms of authentication that can be used for securing access to accounts. One-Time Passwords are often referred to as secure and stronger forms of authentication in multi-owner manner. Extensive security and performance analysis shows that our proposed scheme is highly efficient and satisfies the security requirements for public cloud based secure group sharing.
International Journal of Computational Engineering Research(IJCER)ijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology.
Enhanced Data Partitioning Technique for Improving Cloud Data Storage SecurityEditor IJMTER
Cloud computing is a model for enabling for on demand network access to shared
configurable computing resources (e.g. networks, servers, storage, applications, and services).It is
based on virtualization and distributed computing technologies. Cloud Data storage systems enable
user to store data efficiently on server without any trouble of data resources. User can easily store
and retrieve their data remotely. The two biggest concerns about cloud data storage are reliability and
security. Clients aren’t like to entrust their data to another third party or companies without a
guarantee that they will be able to access therein formations whenever they want. In the existing
system, the data are stored in the cloud using dynamic data operation with computation which makes
the user need to make a copy for further updating and verification of the data loss. Different
distributed storing auditing techniques are used for overcoming the problem of data loss. Recent
work of this paper has show that data partitioning technique used for data storage by providing
Digital signature to every partitioning data and user .this technique allow user to upload or retrieve
the data with matching the digital signatures provided to them. This method ensures high cloud
storage integrity, enhanced error localization and easy identification of misbehaving server and
unauthorized access to the cloud server. Hence this work aims to store the data securely in reduced
space with less time and computational cost.
Improve HLA based Encryption Process using fixed Size Aggregate Key generationEditor IJMTER
Cloud computing is an innovative idea for IT industries which provides several services to
users. In cloud computing secure authentication and data integrity of data is a major challenge, due to
internal and external threats. For improvement in data security over cloud, various techniques are
used.MAC based authentication is one of them, which suffers from undesirable systematic demerits
which have bounded usage and not secure verification, which may pose additional online load to users,
in a public auditing setting. Reliable and secure auditing are also challenging in cloud. In Cloud auditing
existing audit systems are based on aggregate key HLA algorithm. This algorithm is based on variable
sizes, different aggregate key generation, which encounters with security issues at decryption level.
Current Scheme generates a high length of key decryption that encounters with problem of space
complexity. To overcome these issues, We can improve HLA algorithm by improve aggregate key
generation, based on fixed key size. This algorithm generates constant aggregate key which will
overcomes problem of sharing of keys, security issues and space complexity.
Secure Redundant Data Avoidance over Multi-Cloud Architecture. IJCERT JOURNAL
Redundant data avoidance systems, the Private Cloud are involved as a proxy to allow data owner/users to securely perform duplicate check with differential privileges. Such architecture is practical and has attracted much attention from researchers. The data owners only outsource their data storage by utilizing public cloud while the data operation is managed in private cloud, in this connection our presented system has follows traditional encryption while providing data confidentiality, is incompatible with redundant data avoidance. Identical data copies of different users will lead to different ciphertexts, making data avoidance impossible. To address above issues convergent encryption technique has been proposed to encrypt the data before outsourcing. To better protect data security, this paper makes the first attempt to formally address the problem of authorized redundant data avoidance. Different from traditional redundant data avoidance systems, the differential privileges of users are further considered in duplicate check besides the data itself. We also present several new redundant data avoidance constructions supporting authorized duplicate check in a multi-cloud architecture. Security analysis demonstrates that our scheme is secure in terms of the definitions specified in the proposed security model. In order to perform secure access controlling scheme user may satisfy fine-grained approach at cloud level towards access restricting from unauthorized users or adversaries.
Security Check in Cloud Computing through Third Party Auditorijsrd.com
In cloud computing, data owners crowd their data on cloud servers and users (data consumers) can access the data from cloud servers. Due to the data outsourcing, however, it requires an independent auditing service to check the data integrity in the cloud. Some existing remote integrity checking method scan only serve for static records data. Thus, cannot be used in the auditing service since the data in the cloud can be animatedly updated. Thus, an efficient and secure dynamic auditing protocol is required to convince data owners that the data are correctly stored in the cloud. In this paper, we first design an auditing framework for cloud storage systems for privacy-preserving auditing protocol. Then, we extend our auditing protocol to support the data dynamic operations, which is efficient to secure the random model.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
A robust and verifiable threshold multi authority access control system in pu...IJARIIT
Attribute-based Encryption is observed as a promising cryptographic leading tool to assurance data owners’ direct
regulator over their data in public cloud storage. The former ABE schemes include only one authority to maintain the whole
attribute set, which can carry a single-point bottleneck on both security and performance. Then, certain multi-authority
schemes are planned, in which numerous authorities distinctly maintain split attribute subsets. However, the single-point
bottleneck problem remains unsolved. In this survey paper, from another perspective, we conduct a threshold multi-authority
CP-ABE access control scheme for public cloud storage, named TMACS, in which multiple authorities jointly manage a
uniform attribute set. In TMACS, taking advantage of (t, n) threshold secret allocation, the master key can be shared among
multiple authorities, and a lawful user can generate his/her secret key by interacting with any t authorities. Security and
performance analysis results show that TMACS is not only verifiable secure when less than t authorities are compromised, but
also robust when no less than t authorities are alive in the system. Also, by efficiently combining the traditional multi-authority
scheme with TMACS, we construct a hybrid one, which satisfies the scenario of attributes coming from different authorities as
well as achieving security and system-level robustness.
Enhancement of the Cloud Data Storage Architectural Framework in Private CloudINFOGAIN PUBLICATION
The data storage in the cloud typically resides in a service providing environment collocated with data from different clients. The institutions or organizations moving the sensitive and regulated data into the cloud in order to maintain the account for the means by which the access data is controlled and the data is kept secure. Data can take many forms. The cloud based application development; it includes the application programs, scripts, and configuration settings, along with the development tools. For deployed applications, it includes records and other content created or used by the applications, as well as account information about the users of the applications. Access controls are one means to keep data away from unauthorized users; encryption is another. Access controls are typically identity-based, which makes authentication of the user’s identity an important issue in cloud computing. In this research paper focus the cloud data storage architectural frame work of encrypted data.
Control Cloud Data Access Using Attribute-Based Encryptionpaperpublications3
Abstract: Cloud computing is a revolutionary computing paradigm which enables flexible, on-demand and low-cost usage of computing resources. Those advantages, ironically, are the causes of security and privacy problems, which emerge because the data owned by different users are stored in some cloud servers instead of under their own control. To deal with security problems, various schemes based on the Attribute-Based Encryption have been proposed recently. Data access control is an effective way to ensure the data security in the cloud. However, due to data outsourcing and untrusted cloud servers, the data access control becomes a challenging issue in cloud storage systems. Data security is the key concern in the distributed system. Various schemes based on the attribute-based encryption have been proposed to secure the cloud storage. However, most work focuses on the data contents privacy and the access control, while less attention is paid to the privilege control and the identity privacy. In this paper, we present a semianonymous privilege control scheme AnonyControl to address not only the data privacy, but also the user identity privacy in existing access control schemes. AnonyControl decentralizes the central authority to limit the identity leakage and thus achieves semianonymity. Besides, it also generalizes the file access control to the privilege control, by which privileges of all operations on the cloud data can be managed in a fine-grained manner. Subsequently, we present the AnonyControl-F, which fully prevents the identity leakage and achieve the full anonymity. Our security analysis shows that both AnonyControl and AnonyControl-F are secure under the decisional bilinear Diffie–Hellman assumption, and our performance evaluation exhibits the feasibility of our schemes.
Unit 3 -Data storage and cloud computingMonishaNehkal
Data storage
Cloud storage
Cloud storage from LANs to WANs
Cloud computing services
Cloud computing at work
File system
Data management
Management services
Cloud Computing Using Encryption and Intrusion Detectionijsrd.com
Cloud computing provides many benefits to the users such as accessibility and availability. As the data is available over the cloud, it can be accessed by different users. There may be sensitive data of organization. This is the one issue to provide access to authenticated users only. But the data can be accessed by the owner of the cloud. So to avoid getting data being accessed by the cloud owner, we will use the intrusion detection system to provide security to the data. The other issue is to save the data backup in other cloud in encrypted form so that load balancing can be done. This will help the user with data availability in case of failure of one cloud.
A Secure Multi-Owner Data Sharing Scheme for Dynamic Group in Public Cloud. IJCERT JOURNAL
In cloud computing outsourcing group resource among cloud users is a major challenge, so cloud computing provides a low-cost and well-organized solution. Due to frequent change of membership, sharing data in a multi-owner manner to an untrusted cloud is still its challenging issue. In this paper we proposed a secure multi-owner data sharing scheme for dynamic group in public cloud. By providing AES encryption with convergent key while uploading the data, any cloud user can securely share data with others. Meanwhile, the storage overhead and encryption computation cost of the scheme are independent with the number of revoked users. In addition, I analyze the security of this scheme with rigorous proofs. One-Time Password is one of the easiest and most popular forms of authentication that can be used for securing access to accounts. One-Time Passwords are often referred to as secure and stronger forms of authentication in multi-owner manner. Extensive security and performance analysis shows that our proposed scheme is highly efficient and satisfies the security requirements for public cloud based secure group sharing.
International Journal of Computational Engineering Research(IJCER)ijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology.
Enhanced security framework to ensure data security in cloud using security b...eSAT Journals
Abstract Data security and Access control is a challenging research work in Cloud Computing. Cloud service users upload there private and confidential data over the cloud. As the data is transferred among the server and client, the data is to be protected from unauthorized entries into the server, by authenticating the user’s and provide high secure priority to the data. So the Experts always recommend using different passwords for different logins. Any normal person cannot possibly follow that advice and memorize all their usernames and passwords. That is where password managers come in. The purpose of this paper is to secure data from unauthorized person using Security blanket algorithm.
Public Key Encryption algorithms Enabling Efficiency Using SaaS in Cloud Comp...Editor IJMTER
The Most great challenging in Cloud computing is Security. Here Security plays key role
in this paper proposed concept mainly deals with security at the end user access. While coming to the
end user access that are connected through the public networks. Here the end user wants to access his
application or services protected by the unauthorized persons. In this area if we want to apply
encryption or decryption methods such as RSA, 3DES, MD5, Blow fish. Etc.,
Whereas we can utilize these services at the end user access in cloud computing. Here there is
problem of encryption and decryption of the messages, services and applications. They are is lot of
time to take encrypt as well as decrypt and more number of processing capabilities are needed to use
the mechanism. For that problem we are introducing to use of cloud computing in SaaS model. i.e.,
scalable is applicable in this area so whenever it requires we can utilize the SaaS model.
In Cloud computing use of computing resources (hardware and software) that are delivered as a
service over Internet network. In advance earlier there is problem of using key size in various
algorithm like 64 bit it take some long period to encrypt the data.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
ACCESSING SECURED DATA IN CLOUD COMPUTING ENVIRONMENTIJNSA Journal
Number of businesses using cloud computing has increased dramatically over the last few years due to the attractive features such as scalability, flexibility, fast start-up and low costs. Services provided over the web are ranging from using provider’s software and hardware to managing security and other issues. Some of the biggest challenges at this point are providing privacy and data security to subscribers of public cloud servers. An efficient encryption technique presented in this paper can be used for secure access to and storage of data on public cloud server, moving and searching encrypted data through communication channels while protecting data confidentiality. This method ensures data protection against both external and internal intruders. Data can be decrypted only with the provided by the data owner key, while public cloud server is unable to read encrypted data or queries. Answering a query does not depend on it size and done in a constant time. Data access is managed by the data owner. The proposed schema allows unauthorized modifications detection.
Cloud Auditing With Zero Knowledge PrivacyIJERA Editor
The Cloud computing is a latest technology which provides various services through internet. The Cloud server allows user to store their data on a cloud without worrying about correctness & integrity of data. Cloud data storage has many advantages over local data storage. User can upload their data on cloud and can access those data anytime anywhere without any additional burden. The User doesn’t have to worry about storage and maintenance of cloud data. But as data is stored at the remote place how users will get the confirmation about stored data. Hence Cloud data storage should have some mechanism which will specify storage correctness and integrity of data stored on a cloud. The major problem of cloud data storage is security .Many researchers have proposed their work or new algorithms to achieve security or to resolve this security problem. In this paper, we proposed a Shamir’s Secrete sharing algorithm for Privacy Preservation for data Storage security in cloud computing. We can achieve confidentiality, integrity and availability of the data. It supports data dynamics where the user can perform various operations on data like insert, update and delete as well as batch auditing where multiple user requests for storage correctness will be handled simultaneously which reduce communication and computing cost.
A novel cloud storage system with support of sensitive data applicationijmnct
Most users are willing to store their data in the c
loud storage system and use many facilities of clou
d. But
their sensitive data applications faces with potent
ial serious security threats. In this paper, securi
ty
requirements of sensitive data application in the c
loud are analyzed and improved structure for the ty
pical
cloud storage system architecture is proposed. The
hardware USB-Key is used in the proposed architectu
re
for purpose of enhancing security of user identity
and interaction security between the users and the
cloud
storage system. Moreover, drawn from the idea of da
ta active protection, a data security container is
introduced in the system to enhance the security of
the data transmission process; by encapsulating th
e
encrypted data, increasing appropriate access contr
ol and data management functions. The static data
blocks are replaced with a dynamic executable data
security container. Then, an enhanced security
architecture for software of cloud storage terminal
is proposed for more adaptation with the user's sp
ecific
requirements, and its functions and components can
be customizable. Moreover, the proposed architectur
e
have capability of detecting whether the execution
environment is according with the pre-defined
environment requirements.
Excellent Manner of Using Secure way of data storage in cloud computingEditor IJMTER
The major challenging issue in Cloud computing is Security. Providing Security is big issue
towards protecting data from third person as well as in Internet. This mainly deals the Security how it is
provided. Various type of services are there to protect our data and Various Services are available in Cloud
Computing to Utilize effective manner as Software as a Service (SaaS), Platform as a Service (PaaS),
Hardware as a Service (HaaS). Cloud computing is the use of computing resources (hardware and
software) that are delivered as a service over Internet network. Cloud Computing moves the Application
software and databases to the large data centres, where the administration of the data and services may not
be fully trustworthy that is in third party here the party has to get certified and authorized. Since Cloud
Computing share distributed resources via network in the open environment thus it makes new security
risks towards the correctness of the data in cloud. I propose in this paper flexibility of data storage
mechanism in the distributed environment by using the homomorphism token generation. In the proposed
system, users need to allow auditing the cloud storage with lightweight communication. While using
Encryption and Decryption methods it is very burden for a single processor. Than the processing
Capabilities can we utilize from Cloud Computing.
Effective & Flexible Cryptography Based Scheme for Ensuring User`s Data Secur...ijsrd.com
Cloud computing has been envisioned as the next-generation architecture of IT enterprise. In contrast to traditional solutions, where the IT services are under proper physical, logical and personnel controls, cloud computing moves the application software and databases to the large data centers, where the management of the data and services may not be fully trustworthy. This unique attribute, however, poses many new security challenges which have not been well understood. In this article, we focus on cloud data storage security, which has always been an important aspect of quality of service. To ensure the correctness of users' data in the cloud, we propose an effective and flexible cryptography based scheme. Extensive security and performance analysis shows that the proposed scheme is highly efficient and resilient against malicious data modification attack.
Cloud computing is the technology which enables obtaining resources like so services,
software, hardware over the internet. With cloud storage users can store their data remotely and
enjoy on-demand services and application from the configurable resources. The cloud data storage
has many benefits over local data storage. Users should be able to just use the cloud storage as if it is
local, without worrying about the need to verify its integrity. The problem is that ensuring data
security and integrity of data of user. Sohere, I am going to have public audit ability for cloud storage
that users can resort to a third-party auditor (TPA) to check the integrity of data. This paper gives the
various issues related to privacy while storing the user’s data to the cloud storage during the TPA
auditing. Without appropriate security and privacy solutions designed for clouds this computing
paradigm could become a big failure. I am a giving privacy-preserving public auditing using ring
signature process for secure cloud storage system. This paper is going to analyze various techniques
to solve these issues and to provide the privacy and security to the data in cloud
A Secure, Scalable, Flexible and Fine-Grained Access Control Using Hierarchic...Editor IJCATR
Cloud Computing is going to be very popular technology in IT enterprises. For any enterprise the data stored is very huge
and invaluable. Since all tasks are performed through network it has become vital to have the secured use of legitimate data. In cloud
computing the most important matter of concern are data security and privacy along with flexibility, scalability and fine grained access
control of data being the other requirements to be maintained by cloud systems Access control is one of the prominent research topics
and hence various schemes have been proposed and implemented. But most of them do not provide flexibility, scalability and fine
grained access control of the data on the cloud. In order to address the issues of flexibility, scalability and fine grained access control
of remotely stored data on cloud we have proposed the hierarchical attribute set-based encryption (HASBE) which is the extension of
attribute- set-based encryption(ASBE) with a hierarchical structure of users. The proposed scheme achieves scalability by handling the
authority to appropriate entity in the hierarchical structure, inherits flexibility by allowing easy transfer and access to the data in case
of location switch. It provides fine grained access control of data by showing only the requested and authorized details to the user thus
improving the performance of the system. In addition, it provides efficient user revocation within expiration time, request to view
extra-attributes and privacy in the intra-level hierarchy is achieved. Thus the scheme is implemented to show that is efficient in access
control of data as well as security of data stored on cloud with comprehensive experiments
Dynamic Resource Allocation and Data Security for CloudAM Publications
Cloud computing is the next generation of IT organization. Cloud computing moves the software and
databases to the large centres where the management of services and data may not be fully trusted. In this system, we
focus on cloud data storage security, which has been an important aspect of quality of services. To ensure the
correctness of user’s data in the cloud, we propose an effective scheme with Advanced Encryption Standard and MD5
algorithm. Extensive security and performance analysis shows that the proposed scheme is highly efficient. In
proposed work we have developed efficient parallel data processing in clouds and present our research project for
parallel security. Parallel security is the data processing framework to explicitly exploit the dynamic storage along with
data security. We have proposed a strong, formal model for data security on cloud and corruption detection.
Similar to Preserving Privacy Policy- Preserving public auditing for data in the cloud (20)
Business Valuation Principles for EntrepreneursBen Wann
This insightful presentation is designed to equip entrepreneurs with the essential knowledge and tools needed to accurately value their businesses. Understanding business valuation is crucial for making informed decisions, whether you're seeking investment, planning to sell, or simply want to gauge your company's worth.
Attending a job Interview for B1 and B2 Englsih learnersErika906060
It is a sample of an interview for a business english class for pre-intermediate and intermediate english students with emphasis on the speking ability.
The world of search engine optimization (SEO) is buzzing with discussions after Google confirmed that around 2,500 leaked internal documents related to its Search feature are indeed authentic. The revelation has sparked significant concerns within the SEO community. The leaked documents were initially reported by SEO experts Rand Fishkin and Mike King, igniting widespread analysis and discourse. For More Info:- https://news.arihantwebtech.com/search-disrupted-googles-leaked-documents-rock-the-seo-world/
Putting the SPARK into Virtual Training.pptxCynthia Clay
This 60-minute webinar, sponsored by Adobe, was delivered for the Training Mag Network. It explored the five elements of SPARK: Storytelling, Purpose, Action, Relationships, and Kudos. Knowing how to tell a well-structured story is key to building long-term memory. Stating a clear purpose that doesn't take away from the discovery learning process is critical. Ensuring that people move from theory to practical application is imperative. Creating strong social learning is the key to commitment and engagement. Validating and affirming participants' comments is the way to create a positive learning environment.
Memorandum Of Association Constitution of Company.pptseri bangash
www.seribangash.com
A Memorandum of Association (MOA) is a legal document that outlines the fundamental principles and objectives upon which a company operates. It serves as the company's charter or constitution and defines the scope of its activities. Here's a detailed note on the MOA:
Contents of Memorandum of Association:
Name Clause: This clause states the name of the company, which should end with words like "Limited" or "Ltd." for a public limited company and "Private Limited" or "Pvt. Ltd." for a private limited company.
https://seribangash.com/article-of-association-is-legal-doc-of-company/
Registered Office Clause: It specifies the location where the company's registered office is situated. This office is where all official communications and notices are sent.
Objective Clause: This clause delineates the main objectives for which the company is formed. It's important to define these objectives clearly, as the company cannot undertake activities beyond those mentioned in this clause.
www.seribangash.com
Liability Clause: It outlines the extent of liability of the company's members. In the case of companies limited by shares, the liability of members is limited to the amount unpaid on their shares. For companies limited by guarantee, members' liability is limited to the amount they undertake to contribute if the company is wound up.
https://seribangash.com/promotors-is-person-conceived-formation-company/
Capital Clause: This clause specifies the authorized capital of the company, i.e., the maximum amount of share capital the company is authorized to issue. It also mentions the division of this capital into shares and their respective nominal value.
Association Clause: It simply states that the subscribers wish to form a company and agree to become members of it, in accordance with the terms of the MOA.
Importance of Memorandum of Association:
Legal Requirement: The MOA is a legal requirement for the formation of a company. It must be filed with the Registrar of Companies during the incorporation process.
Constitutional Document: It serves as the company's constitutional document, defining its scope, powers, and limitations.
Protection of Members: It protects the interests of the company's members by clearly defining the objectives and limiting their liability.
External Communication: It provides clarity to external parties, such as investors, creditors, and regulatory authorities, regarding the company's objectives and powers.
https://seribangash.com/difference-public-and-private-company-law/
Binding Authority: The company and its members are bound by the provisions of the MOA. Any action taken beyond its scope may be considered ultra vires (beyond the powers) of the company and therefore void.
Amendment of MOA:
While the MOA lays down the company's fundamental principles, it is not entirely immutable. It can be amended, but only under specific circumstances and in compliance with legal procedures. Amendments typically require shareholder
LA HUG - Video Testimonials with Chynna Morgan - June 2024Lital Barkan
Have you ever heard that user-generated content or video testimonials can take your brand to the next level? We will explore how you can effectively use video testimonials to leverage and boost your sales, content strategy, and increase your CRM data.🤯
We will dig deeper into:
1. How to capture video testimonials that convert from your audience 🎥
2. How to leverage your testimonials to boost your sales 💲
3. How you can capture more CRM data to understand your audience better through video testimonials. 📊
What is the TDS Return Filing Due Date for FY 2024-25.pdfseoforlegalpillers
It is crucial for the taxpayers to understand about the TDS Return Filing Due Date, so that they can fulfill your TDS obligations efficiently. Taxpayers can avoid penalties by sticking to the deadlines and by accurate filing of TDS. Timely filing of TDS will make sure about the availability of tax credits. You can also seek the professional guidance of experts like Legal Pillers for timely filing of the TDS Return.
Skye Residences | Extended Stay Residences Near Toronto Airportmarketingjdass
Experience unparalleled EXTENDED STAY and comfort at Skye Residences located just minutes from Toronto Airport. Discover sophisticated accommodations tailored for discerning travelers.
Website Link :
https://skyeresidences.com/
https://skyeresidences.com/about-us/
https://skyeresidences.com/gallery/
https://skyeresidences.com/rooms/
https://skyeresidences.com/near-by-attractions/
https://skyeresidences.com/commute/
https://skyeresidences.com/contact/
https://skyeresidences.com/queen-suite-with-sofa-bed/
https://skyeresidences.com/queen-suite-with-sofa-bed-and-balcony/
https://skyeresidences.com/queen-suite-with-sofa-bed-accessible/
https://skyeresidences.com/2-bedroom-deluxe-queen-suite-with-sofa-bed/
https://skyeresidences.com/2-bedroom-deluxe-king-queen-suite-with-sofa-bed/
https://skyeresidences.com/2-bedroom-deluxe-queen-suite-with-sofa-bed-accessible/
#Skye Residences Etobicoke, #Skye Residences Near Toronto Airport, #Skye Residences Toronto, #Skye Hotel Toronto, #Skye Hotel Near Toronto Airport, #Hotel Near Toronto Airport, #Near Toronto Airport Accommodation, #Suites Near Toronto Airport, #Etobicoke Suites Near Airport, #Hotel Near Toronto Pearson International Airport, #Toronto Airport Suite Rentals, #Pearson Airport Hotel Suites
Preserving Privacy Policy- Preserving public auditing for data in the cloud
1. International Journal of Engineering Science Invention
ISSN (Online): 2319 – 6734, ISSN (Print): 2319 – 6726
www.ijesi.org || Volume 3 Issue 11 || November 2014 || PP.06-09
www.ijesi.org 6 | Page
Preserving Privacy Policy- Preserving public auditing for data in
the cloud
Krishna Kumar L1
, Deepa P Sivan 2
1
(Professor, Department of Computer science, Nehru Institute of Technology/ Anna University, India)
2
(Scholar, Department of Computer science, Nehru Institute of Technology/ Anna University, India)
ABSTRACT : Cloud computing is widely developed technology, remotely to be temporarily shared across
multiple users in flexible manner than products. Users can continuously access service from the remote
locations. So cloud creates issues in data security, privacy integrity, and dynamic updates. The cloud server
stores large amount of data which does not offer guarantee on data integrity and consistency. In user side every
time it is not possible to check data consistency of stored data on cloud storage. This problem is solving by
public auditing method, which ensure integrity and to reduce online burden on cloud data storage. So user may
resort to third-party auditor (TPA) to audit the data by using ring signatures. The privacy preserving identity of
the signer on each block from the TPA means, the group is pre-defined before shared data is created in the cloud
.The membership of each users in the group is not changed during the data sharing stage. The original user is
responsible for who is able to share her data before outsourcing data to the cloud. TPA audits the integrity of
shared data on cloud with dynamic group of user. In this method cloud storage service provide data sharing
preserving identity privacy.
KEYWORDS : cloud computing, privacy-preserving, public auditing, ring signature, shared data.
I. INTRODUCTION
Cloud computing is an internet based computing which enables sharing of services. Cloud computing
allows users to use applications without installation any application and access their personal file and
application at any computer with internet or intranet access. Cloud applications are e-mail, e-commerce, web
conferencing-shopping, customer relationship management (CRM) etc. Cloud computing is widely developed
technology used in IT industries to provide services like resources, rapid resource elasticity, network access
control and platform as per user require. In cloud computing the user data is centralized to the cloud. The user
can access the cloud services within the help of mobile devices and internet connection. Cloud storage is a
online storage in which the data store in format of file or block pattern .Cloud data stored in virtualized pools of
storage that are generally given by the Third Party Auditor(TPA). The cloud provides its application, software
and data services are in remotely and temporarily, user can access it’s by using personal computers, mobile
phones or other internet access devices. In IT industries, individuals storing their data into the cloud in flexible
manner having some benefits like relief from Hardware, software, online burden of data storage, reduce the cost
of capital expenditure on personal maintenance. Cloud containing majority problems are related to data sharing
resources between multi-owners and group membership changes. There are many methods are using for
overcome from these issues as ring signature and encryption techniques.
Today everyone depending network to developing their knowledge in any area at any time so many
users from remote locations use network services continuously so there may arise some issues. The cloud
containing main issues are depending privacy, security, data integrity, dynamic updates. This problem is
addressed and solving by using public auditing for secure cloud. The third party auditor (TPA), who has
capabilities and expertise that can periodically check the integrity of the data, which is stored in the cloud. The
users cannot have the auditing capabilities than TPA. The TPA check the correctness of data stored in cloud on
behalf of user and maintain the data integrity. Enabling public auditing service will play an important role for
privacy data security & minimizing the data risk from misuses. The TPA is act as an external party .Which can
also view the data stored in cloud and does not give the guarantee of data privacy. The auditing data in cloud
can access the original data owner at any time.The cloud computing architecture contains a Third Party Auditor
(TPA) for auditing the system which is connected with the particular group of the cloud storage. Group member
or user is Cloud users where they store their private data into the cloud sever and also share that data with other
user of Cloud system as a group member. Cloud is a system operated by the Cloud service provider, which
allow to store and share data of cloud user in a system and also access service on a demand basis as pay. The
cloud contains two types of storage, private and public type.
2. Preserving Privacy Policy- Preserving …
www.ijesi.org 7 | Page
In the public anyone can access and anyone can change the cloud containing data and in the private the
particular user can only access the data and the user cannot change the data without the owner's permission.
II. LITERATURE SURVEY
A View of Cloud Computing : M. Armbrust, A. Fox, R. Griffith, A. D.Joseph, R.H. Katz, A. Konwinski, G.
Lee, D.A. Patterson, A. Rabkin, I. Stoica, and M. Zaharia are a term of persons presented data security is one of
the most important objections in the cloud computing. There is also analysis about storage area as hard disk,
virtual machine memory contents and its requirements for audit-ability. Namely user-level encryption of
storage is common for high-value data outside the cloud architecture, its tools and existing user information are
available. This cloud approach was successfully used by TC3, in the area of healthcare company. This is used
for access of data about patient records and claims, when moving their compliant application to AWS. Audit-
ability could be added as an additional layer within the virtualized guest OS, and its audit-ability and confidence
providing facilities to improve more security into the applications development and centralizing. Theses
software responsibilities related into a single logical layer to focusing the applications and services.
B. Privacy-Preserving Public Auditing for Data Storage Security in Cloud Computing : C.Wang, Q.
Wang, K. Ren, and W. Lou are presented a cloud based storage system containing storage server’s collections.
TPA is a separate system which contains serious eight causes concerns over data confidentiality in data.
Generally encryption method is used for data protection but also limit the functionality of the storage system
because a few operations are supported over encrypted data storing. The challenges of secure storage system is
support multiple functions with no central authority and distributed type. They propose a secure storage
distributed system which propose a threshold proxy re-encryption scheme to integrate decentralized code. The
distributed storage supports secure, retrieval and robust type of data storage. In the retrieval supporting secure
storage distributed system a user can forward any type of data into storage servers and other user cannot able to
retrieving the data recovery. The main technical contribution is proxy re-encryption scheme, which supports
encrypted type messages to perform encoding. They suggest suitable parameters for the number of dispatched
message copies to storage servers and the storage servers are queried by using a key server.
C. Achieving Secure, Scalable, and Fine-Grained Data Access Control in Cloud Computing : S. Yu, C.
Wang, K. Ren and W. Lou are presented new challenges for data security and access control. When confidential
user data sharing on un-trusted cloud server. The cryptographic methods are using for existing solutions in the
disclosing data decryption keys. The problem are depends upon some of its properties fine-graininess,
scalability, and confidentiality and access control are remain unresolved. In this paper mention this open
challenging issue by hand, define and enforcing access policies based on data attributes, The elevate data owner
to commutated this tasks ,which involved in fine-grained data access control in to un-trusted cloud servers .The
main goal by exploiting and unique wise combining techniques of attribute-based encryption (ABE), proxy re-
encryption, and lazy re-encryption. They proposed scheme has salient user access properties of confidentiality
and accountability.
D. Scalable and Efficient Provable Data Possession : G. Ateniese, R. D. Pietro, L. V. Mancini, and G.
Tsudik are developed a design a scalable and effective cloud based distributed storage. The design based on step
by step cooperative PDP scheme, which contain light-weight and secure provably property. Using in
architecture to develop a hierarchy structure which supports file storage representation. The hierarchical
structure represents relationships among all blocks in the stored resources. Homomorphic verifiable is the CPDP
key technique which reduces the communication bandwidth and support dynamic type operations.. The PDP or
PoR is a probabilistic proof technique, which focus in the single data storage un-trusted cloud servers but not
suitable for a multi cloud environment. The data possession without downloading data at un-trusted stores, not
suitable for distributed cloud storage since they were not originally constructed on interactive proof system. The
homomorphic doesn’t responses from multiple clouds, when using a scalable and unsuitable third party auditor
for verification.
E. Ensuring Data Storage Security in Cloud Computing : C. Wang, Q. Wang, K. Ren, and W. Lou are
proposed distributed architecture to ensure the data correctness of IT Enterprise and users. The distributed
storage system provides guarantee in redundancy and dependability. In the centralized large data centers which
act as a application software as well as databases to management and services provider in the data storage
server. In this work studies about ensuring the integrity of data storage containing the problem in cloud
Computing. In particular, a third party auditor (TPA), to verify dynamic data and its integrity in the cloud. The
dynamics data support in the forms of data operation such modification, insertion, and deletion. So the cloud
data services are not limited to archive or data backup.
3. Preserving Privacy Policy- Preserving …
www.ijesi.org 8 | Page
F. Knox: Privacy-Preserving Auditing for Shared Data with Large Groups in the Cloud : Boyang Wang,
Baochun Liand Hui Li are presented on cloud and its storage services. The effective design mechanism to audit shared data
integrity to preserving privacy of user identity. In particular, using a signature homomorphic authenticator. The
administrators or group managers can control the group by using private key. A third party auditor (TPA) is able to verify
shared data. The signer on each block identity in shared data is kept private from the TPA. Here using Knox exploits
homomorphic MACs to reduce storage space to perform information verification. This is efficiently audit the data
correctness and data shared among a multiple users.
G. Aggregate and Verifiably Encrypted Signatures from Bilinear Maps : D. Boneh, C. Gentry, B. Lynn,
And H. Shacham Are Presented A Effective Security System With Aggregate Signature Scheme On Bilinear
Maps. The Bilinear Maps Contract Extra Structure And Power To Providing High Security. The Aggregate
Signature Reduces Size And Communication Bandwidth. . The Aggregate Signature Describe With Aggregate
Signature Scheme Based On Co-GDH Signature. Encrypted Signatures Evolved In Verifiably Encrypted
Signature Scheme With Seven Algorithms. In The Seven Algorithms Three Of Them Are Ordinary Signature
Scheme And Other Are Verifiably Encrypted Signatures
H . Privacy –Preserving Public Auditing for Secure Cloud Storage : Cong Wang, Sherman S, M. Chow,
Qian WangKui Ren, and Wenjing Lou are proposes a privacy-preserving public auditing system for security
data storage in Cloud. A homomorphic linear authenticator and the TPA would not have any knowledge about
the cloud data storage. TPA handle multiple audit sessions from different users data. Privacy preserving system
provides secure data storage. The data contents are stored in the TPA and the TPA audit the storage files and
check the data uniqueness or matching contents. The main concept of this paper was batch auditing.
III. PROPOSED SYSTEM
In my paper cloud is most widely used for storage purpose and anyone can access the stored data from
anytime, anywhere. Most probably shared data in the format of image or file types, cloud control and share the
stored data to the user group. If an owner wants to sale his/her data in the cloud means the cloud and the data
owner between and agreements. The private cloud services are services are pay and precede types. If the cloud
contains many customers, then cloud provides the service after payment of a particular amount. In this case the
cloud act as a marketing manager and the original user is silent and the cloud gives a particular benefit
percentage to the data owner. One of the best ways to ensure confidential data is protected in the cloud is to
utilize encryption for data. Almost all cloud service providers support encryption for information storage, but
few offer support for data at ease. The encryption capabilities of the cloud service provider need to equal the
degree of sensitivity of the data being hosted. Encryption plays a big role in fulfillment as many policies require
specific data elements to be encrypted. The most important guidance on encryption is publicly available from
NIST 800-111 and FIPS-140-2. These encryption standards can help you evaluate the encryption capabilities of
a cloud provider for compliance with regulations to protect a user. Confidential data in the cloud, encryption is a
powerful tool that can be used effectively. Only the user can confidently utilize cloud providers knowing that
their confidential data is protected by encryption. But some private cloud contains encrypted files so the user
cannot change or remove the unwanted part of the shared data. The main disadvantage is if the owner wants to
upload the 10 file means the 10 files uploaded at the same time otherwise if the owner uploaded the two 5 files
means the order will be changed. In this condition using homomorphic algorithm to edit the uploaded resource
data for encrypted data change into a decrypted format.
Fig. Preserving privacy and public auditing shared data in cloud environment
4. Preserving Privacy Policy- Preserving …
www.ijesi.org 9 | Page
IV. DISCUSSION
Many of project works develop in previously which is only can store data, share data in multiple user
and share data in a large number of users in a group. The purpose and develop a secure and efficient system with
privacy protection of service. In this paper, propose a homomorphic algorithm and third party auditing scheme
to construct a secure data management mechanism with high privacy protection method. In our scheme, the
major merits are: (1) prevention abuses attacks; (2) data security; (3) privacy protection; (4) Auditing details to
the data owner (5) word, index and content wise data searching is applicable.
V. CONCLUSION
In this paper, privacy-preserving public auditing mechanism for shared data in the cloud
environment. The auditing is carried out by a trusted Third Part Auditor (TPA). The TPA might learn
unauthorized information through the auditing process, yet cannot distinguish who is the signer on each block,
which can preserve identity privacy for users. Efficiently audit the integrity of shared data with dynamic groups
while still preserving the identity of the signer on each block from the third party auditor. Also, using
homomorphic algorithm to support word, index and content wise searching into the encrypted cloud data. In
method provides data security and privacy of original data format .at the same time which help to the
REFERENCES
[1]. C. Wang, Q. Wang, K. Ren, and W. Lou, Privacy-Preserving Public Auditing for Data Storage Security in Cloud Computing, in
Proc. IEEE International Conference on Computer Communications (INFOCOM), 2010, pp. 525–533.
[2]. S. Yu, C. Wang, K. Ren, and W. Lou, Achieving Secure, Scalable, and Fine-grained Data Access Control in Cloud Computing,
inProc. IEEE International Conference on Computer Communications (INFOCOM), 2010, pp. 534–542.
[3]. G. Ateniese, R. D. Pietro, L. V. Mancini, and G. Tsudik, Scalable and Efficient Provable Data Possession, in Proc. International
Conference on Security and Privacy in Communication Networks (SecureComm), 2008.
[4]. C. Wang, Q. Wang, K. Ren, and W. Lou, Ensuring Data Storage Security in Cloud Computing, in Proc. IEEE/ACM
International Workshop on Quality of Service (IWQoS), 2009, pp. 1–9.
[5]. Boyang Wang, Baochun Li and Hui Li,Knox: Privacy-Preserving Auditing for Shared Data with Large Groups in the
Cloud,2012.
[6]. D. Boneh, C. Gentry, B. Lynn, and H. Shacham, Aggregate and Verifiably Encrypted Signatures from Bilinear Maps, in Proc.
In- ternational Conference on the Theory and Applications of Cryptographic Techniques (EUROCRYPT). Springer-Verlag,
2003, pp. 416–432.
[7]. Wang, C., Chow, S., Wang, Q., Ren, K., & Lou, W,Privacy-preserving public auditing for secure cloud storage,2010.
[8]. D. Boneh and D. M. Freeman, Homomorphic Signatures for Polynomial Functions, in Proc. International Conference on the
Theory and Applications of Cryptographic Techniques (EUROCRYPT). Springer-Verlag, 2011, pp. 149–168.
[9]. M. Armbrust, A. Fox, R. Griffith, A. D.Joseph, R. H.Katz, A. Konwinski,G. Lee, D. A. Patterson, A. Rabkin, I. Stoica, and M.
Zaharia,A View of Cloud Computing,Communications of the ACM,vol. 53, no. 4, pp. 50–58, Apirl 2010.