The document discusses a proposed secure distributed cloud storage system that uses a threshold proxy re-encryption scheme combined with decentralized erasure coding. This allows a user to securely store and forward data to another user without retrieving the data back. The system encrypts, encodes, and distributes data across multiple storage servers. This provides security, robustness against server failures, and allows data to be securely forwarded between users without the need for the original user to access and handle the decrypted data.
The document describes a proposed secure distributed storage system that integrates a threshold proxy re-encryption scheme with a decentralized erasure code. This allows for secure and robust storage and retrieval of data in the cloud while also enabling a user to securely forward data to another user without retrieving it first. The system fully integrates encryption, encoding, and secure data forwarding capabilities. It is intended for applications where secret data transmission is required, such as in military or hospital settings.
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.
The document describes a secure cloud storage system that supports data forwarding without retrieving data. It uses a threshold proxy re-encryption scheme combined with a decentralized erasure code. This allows storage servers to directly re-encrypt and forward encrypted data to another user, without having the plaintext. The system has four phases: setup, storage, forwarding, and retrieval. It discusses parameters for the number of storage servers and key shares to provide security and robustness. The scheme supports encoding and forwarding of encrypted data in a distributed manner across independent servers.
Secret keys and the packets transportation for privacy data forwarding method...eSAT Journals
Abstract The Cloud computing is the process of storing the data in the Remote server. This process doesn‘t speak much about confidentiality and robustness of the data. To improve the security and confidentiality the uploaded file from a data owner is splitted into multiple packets and stored in multiple cloud servers. These packets are encrypted using the primary key. These different keys are also distributed in multiple key servers. User id is appended for verification. If the data owner forwards the file then the keys are verified for the data access. In this we are proposing sending the secret key as SMS to the shared or forwarded nodes for the process of proper Security. This technique integrates the concepts of encryption, encoding and forwarding. Keywords-cloud computing, encryption, storage system
Secret keys and the packets transportation for privacy data forwarding method...eSAT Publishing House
This document proposes a method for improving data security and privacy in cloud data forwarding. The method involves splitting a data owner's encrypted file into multiple packets, encrypting each packet, and storing the packets and encryption keys across multiple cloud servers. If the data owner wants to forward the file, they send the encrypted packets and verify the recipient's identity. To further enhance security, the decryption key is sent as an SMS rather than over the cloud servers. This integrates concepts of encryption, encoding, and key distribution to improve data confidentiality when files are forwarded in the cloud.
A secure erasure code based cloud storage system with secure data forwardingJPINFOTECH JAYAPRAKASH
The document proposes a secure cloud storage system that uses a threshold proxy re-encryption scheme integrated with a decentralized erasure code. This allows the system to support secure and robust data storage, retrieval, and forwarding without retrieving data back from storage servers. The scheme supports encoding and forwarding operations on encrypted data. Parameters are analyzed for adjusting the number of storage servers and robustness.
This document summarizes various data encryption techniques for securing data in cloud computing. It discusses hybrid encryption algorithms that combine Caesar cipher, RSA, and monoalphabetic substitution. It also describes the DES algorithm and its structure. Finally, it explores identity-based encryption (IBE) where a third party generates public keys based on user identifiers like email addresses. The document concludes that data security is an important issue for cloud computing and more research is still needed to enhance security features using cryptographic techniques.
SECRY - Secure file storage on cloud using hybrid cryptographyALIN BABU
Final project presentation of Final year B.tech CSE Project APJ Abdul Kalam Technological University.
About the project
Cloud computing has now become a major trend, it is a new data hosting technology that is very popular in recent years. In this project, we are developing an web application that can securely store the files to a cloud server. We proposes a system that uses hybrid cryptography technique to securely store the data in cloud. The hybrid approach when deployed in cloud environment makes the remote server more secure and thus, helps the users to fetch more trust of their data in the cloud. For data security and privacy protection issues, the fundamental challenge of separation of sensitive data and access control is fulfilled. Cryptography technique translates original data into unreadable format. This technique uses keys for translate data into unreadable form. So only authorized person can access data from cloud server.
We provide a cloud storage that uses multiple crypotraphic technique which is known by hybrid cryptography. The product provides confidentiality by using security for both upload and download. The data will be secured since we use multi level security techniques and multiple servers for storage.
The document describes a proposed secure distributed storage system that integrates a threshold proxy re-encryption scheme with a decentralized erasure code. This allows for secure and robust storage and retrieval of data in the cloud while also enabling a user to securely forward data to another user without retrieving it first. The system fully integrates encryption, encoding, and secure data forwarding capabilities. It is intended for applications where secret data transmission is required, such as in military or hospital settings.
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.
The document describes a secure cloud storage system that supports data forwarding without retrieving data. It uses a threshold proxy re-encryption scheme combined with a decentralized erasure code. This allows storage servers to directly re-encrypt and forward encrypted data to another user, without having the plaintext. The system has four phases: setup, storage, forwarding, and retrieval. It discusses parameters for the number of storage servers and key shares to provide security and robustness. The scheme supports encoding and forwarding of encrypted data in a distributed manner across independent servers.
Secret keys and the packets transportation for privacy data forwarding method...eSAT Journals
Abstract The Cloud computing is the process of storing the data in the Remote server. This process doesn‘t speak much about confidentiality and robustness of the data. To improve the security and confidentiality the uploaded file from a data owner is splitted into multiple packets and stored in multiple cloud servers. These packets are encrypted using the primary key. These different keys are also distributed in multiple key servers. User id is appended for verification. If the data owner forwards the file then the keys are verified for the data access. In this we are proposing sending the secret key as SMS to the shared or forwarded nodes for the process of proper Security. This technique integrates the concepts of encryption, encoding and forwarding. Keywords-cloud computing, encryption, storage system
Secret keys and the packets transportation for privacy data forwarding method...eSAT Publishing House
This document proposes a method for improving data security and privacy in cloud data forwarding. The method involves splitting a data owner's encrypted file into multiple packets, encrypting each packet, and storing the packets and encryption keys across multiple cloud servers. If the data owner wants to forward the file, they send the encrypted packets and verify the recipient's identity. To further enhance security, the decryption key is sent as an SMS rather than over the cloud servers. This integrates concepts of encryption, encoding, and key distribution to improve data confidentiality when files are forwarded in the cloud.
A secure erasure code based cloud storage system with secure data forwardingJPINFOTECH JAYAPRAKASH
The document proposes a secure cloud storage system that uses a threshold proxy re-encryption scheme integrated with a decentralized erasure code. This allows the system to support secure and robust data storage, retrieval, and forwarding without retrieving data back from storage servers. The scheme supports encoding and forwarding operations on encrypted data. Parameters are analyzed for adjusting the number of storage servers and robustness.
This document summarizes various data encryption techniques for securing data in cloud computing. It discusses hybrid encryption algorithms that combine Caesar cipher, RSA, and monoalphabetic substitution. It also describes the DES algorithm and its structure. Finally, it explores identity-based encryption (IBE) where a third party generates public keys based on user identifiers like email addresses. The document concludes that data security is an important issue for cloud computing and more research is still needed to enhance security features using cryptographic techniques.
SECRY - Secure file storage on cloud using hybrid cryptographyALIN BABU
Final project presentation of Final year B.tech CSE Project APJ Abdul Kalam Technological University.
About the project
Cloud computing has now become a major trend, it is a new data hosting technology that is very popular in recent years. In this project, we are developing an web application that can securely store the files to a cloud server. We proposes a system that uses hybrid cryptography technique to securely store the data in cloud. The hybrid approach when deployed in cloud environment makes the remote server more secure and thus, helps the users to fetch more trust of their data in the cloud. For data security and privacy protection issues, the fundamental challenge of separation of sensitive data and access control is fulfilled. Cryptography technique translates original data into unreadable format. This technique uses keys for translate data into unreadable form. So only authorized person can access data from cloud server.
We provide a cloud storage that uses multiple crypotraphic technique which is known by hybrid cryptography. The product provides confidentiality by using security for both upload and download. The data will be secured since we use multi level security techniques and multiple servers for storage.
The document discusses secure cloud storage. It proposes using the Disintegration Protocol (DIP) to securely store data across multiple cloud servers. DIP distributes data fragments and services across different servers. Access control mechanisms like login credentials and security questions are implemented on DIP. The document also discusses using AES encryption for secure data storage and the Proxy Re-Encryption Scheme (PRE) to allow secure sharing of encrypted data files between cloud users.
Resist Dictionary Attacks Using Password Based Protocols For Authenticated Ke...IJERA Editor
A parallel file system is a type of distributed file system that distributes file data across multiple servers and
provides for concurrent access by multiple tasks of a parallel application. In many to many communications or
multiple tasks, key establishments are a major problem in parallel file system. So we propose a variety of
authenticated key exchange protocols that are designed to address the above issue. In this paper, we also study
the password-based protocols for authenticated key exchange (AKE) to resist dictionary attacks. Password-based
protocols for authenticated key exchange (AKE) are designed to work to resist the use of passwords drawn from
a space so small that attacker might well specify, off line, all possible passwords. While many such protocols
have been suggested, the elemental theory has been lagging. We commence by interpreting a model for this
problem, to approach password guessing, forward secrecy, server compromise, and loss of session keys.
This document proposes a system called SECRY that uses hybrid cryptography to securely store files on a cloud server. SECRY uses multiple cryptographic algorithms, including AES, Triple DES, and ARC4, to encrypt files into shards that are stored across different database servers. Each file can be accessed with a key image generated using LSB steganography. The system aims to provide secure cloud storage, be cost and time efficient, increase data integrity and confidentiality, eliminate third party access, and enable authentication. Future work could allow larger file uploads and additional file types.
1) The document proposes a system model for secure data sharing in cloud environments using cryptography.
2) It aims to provide data confidentiality, access control of shared data, remove the burden of key management and file encryption/decryption for users, and support dynamic changes to user membership without requiring the data owner to always be online.
3) The proposed system addresses common challenges with secure data sharing in cloud computing like data security, access control, key management, and user revocation and rejoining.
IRJET - Multi Authority based Integrity Auditing and Proof of Storage wit...IRJET Journal
This document proposes a method for secure data storage and integrity auditing in the cloud using multi-level encryption and data deduplication. The method first checks for duplicate files using hash comparisons and avoids uploading duplicate data to save storage space. It then encrypts data using AES, DES and RSA algorithms sequentially, generating keys each time. The keys are then re-encrypted using AES and stored on separate servers. This multi-level encryption and distribution of encrypted data and keys across servers makes the data more secure. It also enables proof of storage and authentication of authorized users using time-based keys.
IRJET- Privacy Preserving Cloud Storage based on a Three Layer Security M...IRJET Journal
This document proposes a three-layer security model for privacy-preserving cloud storage. The model uses encryption techniques like AES and Triple DES to encrypt user data before storing it in the cloud. The encrypted data is then divided into blocks that are distributed across different cloud, fog, and local storage locations. This prevents data leakage even if some blocks are lost or accessed. Computational intelligence paradigms help optimize the distribution of data blocks for efficiency and security. The model aims to provide stronger privacy protection compared to traditional cloud storage security methods.
This document summarizes a research paper that proposes a security architecture for cloud computing that dynamically configures cryptographic algorithms and keys based on security policies and inputs like network access risk and data sensitivity. The architecture aims to improve security while reducing costs by only using the necessary level of encryption for each situation. It describes using the Blowfish algorithm instead of AES and adjusting the key size from 128 to 448 bits depending on factors like network type and data size. Results show Blowfish has better performance than AES, especially with larger keys on larger amounts of data. The goal is to provide flexible, efficient security tailored to each user's needs.
A Privacy Preserving Three-Layer Cloud Storage Scheme Based On Computational ...IJSRED
This document proposes a three-layer cloud storage scheme based on fog computing to improve privacy protection. The scheme splits user data into three parts that are stored in the cloud server, fog server, and user's local machine. It uses a Hash-Solomon encoding technique to distribute the data in a way that original data cannot be reconstructed from partial information. The scheme leverages fog computing to both utilize cloud storage and securely protect data privacy against insider attacks. Theoretical analysis and experiments demonstrate that the proposed scheme effectively addresses privacy issues in existing cloud storage models.
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.
With growing awareness and concerns regarding to cloud computing and information security, there is a growing awareness and usage of security algorithms into data systems and processes. Confidentiality means the data is understandable to the receiver only for all others it would be waste; it helps in preventing the unauthorized disclosure of sensitive information. Integrity means data received by receiver should be in the same form, the sender sends it; integrity helps in preventing modification from unauthorized user. Availability refers to assurance that user has access to information anytime and to any network. In the cloud confidentiality is obtained by cryptography. Cryptography is technique of converting data into unreadable form during storage and transmission, so that it appears waste to intruders. In the cloud integrity can be checked using a message authentication code (MAC) algorithm. Also by the help of calculating the hashing value. But both methods are not practically possible for large amount of data. Here symmetric algorithms (like IDEA, Blowfish, and DES) and asymmetric algorithms (like RSA, Homomorphic) are used for cloud based services that require data encryption. While sending data and during storage data is under threat because any unauthorized user can access it, modify it, so there is need to secure data. Any data is secure, if it fulfills three conditions i.e., Confidentiality, Integrity and Availability. There is a need to find a way to check data integrity while saving bandwidth and computation power. Remote data auditing, by which the data integrity or correctness of remotely stored data is investigated, has been given more attention recently.
International Journal of Engineering and Science Invention (IJESI)inventionjournals
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
Implementation of De-Duplication AlgorithmIRJET Journal
The document describes an implementation of a data de-duplication algorithm using convergent encryption. It discusses how data de-duplication works to reduce storage usage by identifying and removing duplicate copies of data. Convergent encryption is used, which generates the same encrypted form of a file from the original file's hash, allowing duplicate encrypted files to be de-duplicated while preserving privacy. The algorithm divides files into blocks, generates hashes for each block, and encrypts the file blocks using the hashes as keys. When a file is uploaded, its hash is checked against existing hashes to identify duplicates, with duplicates replaced by pointers to the stored copy. This allows efficient de-duplication while encrypting data for privacy and security when stored
A Review on Key-Aggregate Cryptosystem for Climbable Knowledge Sharing in Clo...Editor IJCATR
The Data sharing is an important functionality in cloud storage. In this article, we show how to securely, efficiently, and
flexibly share data with others in cloud storage. We describe new public-key cryptosystems which produce constant-size ciphertexts
such that efficient delegation of decryption rights for any set of ciphertexts are possible. The novelty is that one can aggregate any set
of secret keys and make them as compact as a single key, but encompassing the power of all the keys being aggregated. In other
words, the secret key holder can release a constant-size aggregate key for flexible choices of ciphertext set in cloud storage, but the
other encrypted files outside the set remain confidential. This compact aggregate key can be conveniently sent to others or be stored in
a smart card with very limited secure storage. We provide formal security analysis of our schemes in the standard model. We also
describe other application of our schemes. In particular, our schemes give the first public-key patient controlled encryption for flexible
hierarchy, which was yet to be known.
Secure Data Sharing For Dynamic Groups in Multi-Attorney Manner Using Cloudpaperpublications3
Abstract: Cloud computing provides an economical and efficient solution for sharing data among the cloud users in the group , users sharing data in a multi-attorney manner preserving data and identity privacy from an untrusted cloud, it is still a challenging issue, due to frequent change of the membership in the group. In this paper, we propose a multi-attorney data sharing scheme for the dynamic groups in the cloud. By combing group signature and Tripple DES encryption techniques, any cloud user anonymously share the data with others. In addition, we analyze the security of our scheme with rigorous proofs, and demonstrate the efficiency of our scheme in experiments.Keywords: cloud computing, data sharing, privacy-preserving, access control, and dynamic groups.
Title: Secure Data Sharing For Dynamic Groups in Multi-Attorney Manner Using Cloud
Author: Vijaya Kumar Patil C, Manjunath H
International Journal of Recent Research in Mathematics Computer Science and Information Technology
ISSN 2350-1022
Paper Publications
Enhancing Cloud Computing Security for Data Sharing Within Group Membersiosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Psdot 12 a secure erasure code-based cloud storageZTech Proje
The document proposes a secure cloud storage system that uses a threshold proxy re-encryption scheme integrated with a decentralized erasure code. This allows the system to securely store and retrieve data, as well as securely forward data from one user to another without retrieving it directly. The system addresses limitations of traditional encryption for cloud storage by distributing keys and enabling storage servers to directly forward encrypted data between users.
This document summarizes a research paper on secured authorized deduplication in a hybrid cloud system. The system aims to provide data deduplication, differential authorization for access, and confidentiality of data files. It involves a public cloud for storage, a private cloud for managing access tokens, and users who generate keys for files stored on the public cloud. When uploading a file, the user encrypts it and sends it to the public cloud along with the key to the private cloud. To download, the user must provide the correct key to the private cloud to gain access to encrypted files from the public cloud. This hybrid cloud model uses deduplication for storage optimization while controlling access through differential authorization of private keys.
A Novel Approach for Data Security in Cloud EnvironmentSHREYASSRINATH94
Businesses and enterprises are shifting their work base from traditional obsolete systems to cloud servers. The reasons of the shift are rapid deployment of an application which enables the developers to launch their applications within a short duration of time, lower cost operating models, scalability and ability to use an operational budget. The increased demand for computer-intensive applications led to a huge growth in cloud services. Security of the stored files and applications in the cloud is a major concern due to lack of standardized control of the cloud. Traditional cryptographic algorithms like AES and RSA, though robust in nature, are not lightweight in a mobile cloud environment. This paper proposes a novel cryptographic method wherein the file is first encrypted and then stored in cloud and is decrypted using the same key which is used for encryption as and when needed. The experimental results of the identified test cases indeed prove that the proposed algorithm is lightweight in nature in terms of less execution time and less processing cycles. The lightweight approach of the proposed algorithm will benefit the user to encrypt large files in cloud.
Exchange Protocols on Network File Systems Using Parallel Sessions Authentica...IJMTST Journal
In this work we studied the key establishment for secure many-to-many communications. The main
problem is inspired by the rapid increase of large-scale distributed file systems supporting parallel access to
multiple storage devices. The system focus on the current Internet standard for such file systems, i.e.,
parallel Network File System (pNFS), which makes use of Kerberos key exchange protocols to implement
parallel session keys between clients and storage servers. Our study of the existing Kerberos protocol shows
that it has a number of limitations: (i) a metadata server providing key exchange among the clients and the
storage devices has heavy workload that limits the scalability of the protocol; (ii) the protocol cannot provide
forward secrecy; (iii) the metadata server generates all the session keys for securing communication between
clients and storage devices, and this inadvertently leads to key escrow. In this paper, we put forward three
different authenticated key exchange protocols that are designed to address the above issues. We prove that
our protocols are capable for minimizing up to almost50% of the workload of the metadata server and at the
same time supporting forward secrecy and escrow-prevention. All this requires only a small fraction of
increased computation overhead at the client.
IRJET- Storage Security in Cloud ComputingIRJET Journal
This document summarizes a research paper that proposes a dual encryption method for securing data in cloud computing. The method first encrypts data files using the AES symmetric encryption algorithm, producing ciphertext-1. It then encrypts ciphertext-1 again using the Blowfish asymmetric encryption algorithm with a randomly generated key, producing ciphertext-2. This double encryption makes the data more secure, as an attacker would need to decrypt both ciphers to access the original content. The method aims to protect sensitive data from hackers and provide stronger security for cloud storage compared to single encryption algorithms.
The document discusses secure cloud storage. It proposes using the Disintegration Protocol (DIP) to securely store data across multiple cloud servers. DIP distributes data fragments and services across different servers. Access control mechanisms like login credentials and security questions are implemented on DIP. The document also discusses using AES encryption for secure data storage and the Proxy Re-Encryption Scheme (PRE) to allow secure sharing of encrypted data files between cloud users.
Resist Dictionary Attacks Using Password Based Protocols For Authenticated Ke...IJERA Editor
A parallel file system is a type of distributed file system that distributes file data across multiple servers and
provides for concurrent access by multiple tasks of a parallel application. In many to many communications or
multiple tasks, key establishments are a major problem in parallel file system. So we propose a variety of
authenticated key exchange protocols that are designed to address the above issue. In this paper, we also study
the password-based protocols for authenticated key exchange (AKE) to resist dictionary attacks. Password-based
protocols for authenticated key exchange (AKE) are designed to work to resist the use of passwords drawn from
a space so small that attacker might well specify, off line, all possible passwords. While many such protocols
have been suggested, the elemental theory has been lagging. We commence by interpreting a model for this
problem, to approach password guessing, forward secrecy, server compromise, and loss of session keys.
This document proposes a system called SECRY that uses hybrid cryptography to securely store files on a cloud server. SECRY uses multiple cryptographic algorithms, including AES, Triple DES, and ARC4, to encrypt files into shards that are stored across different database servers. Each file can be accessed with a key image generated using LSB steganography. The system aims to provide secure cloud storage, be cost and time efficient, increase data integrity and confidentiality, eliminate third party access, and enable authentication. Future work could allow larger file uploads and additional file types.
1) The document proposes a system model for secure data sharing in cloud environments using cryptography.
2) It aims to provide data confidentiality, access control of shared data, remove the burden of key management and file encryption/decryption for users, and support dynamic changes to user membership without requiring the data owner to always be online.
3) The proposed system addresses common challenges with secure data sharing in cloud computing like data security, access control, key management, and user revocation and rejoining.
IRJET - Multi Authority based Integrity Auditing and Proof of Storage wit...IRJET Journal
This document proposes a method for secure data storage and integrity auditing in the cloud using multi-level encryption and data deduplication. The method first checks for duplicate files using hash comparisons and avoids uploading duplicate data to save storage space. It then encrypts data using AES, DES and RSA algorithms sequentially, generating keys each time. The keys are then re-encrypted using AES and stored on separate servers. This multi-level encryption and distribution of encrypted data and keys across servers makes the data more secure. It also enables proof of storage and authentication of authorized users using time-based keys.
IRJET- Privacy Preserving Cloud Storage based on a Three Layer Security M...IRJET Journal
This document proposes a three-layer security model for privacy-preserving cloud storage. The model uses encryption techniques like AES and Triple DES to encrypt user data before storing it in the cloud. The encrypted data is then divided into blocks that are distributed across different cloud, fog, and local storage locations. This prevents data leakage even if some blocks are lost or accessed. Computational intelligence paradigms help optimize the distribution of data blocks for efficiency and security. The model aims to provide stronger privacy protection compared to traditional cloud storage security methods.
This document summarizes a research paper that proposes a security architecture for cloud computing that dynamically configures cryptographic algorithms and keys based on security policies and inputs like network access risk and data sensitivity. The architecture aims to improve security while reducing costs by only using the necessary level of encryption for each situation. It describes using the Blowfish algorithm instead of AES and adjusting the key size from 128 to 448 bits depending on factors like network type and data size. Results show Blowfish has better performance than AES, especially with larger keys on larger amounts of data. The goal is to provide flexible, efficient security tailored to each user's needs.
A Privacy Preserving Three-Layer Cloud Storage Scheme Based On Computational ...IJSRED
This document proposes a three-layer cloud storage scheme based on fog computing to improve privacy protection. The scheme splits user data into three parts that are stored in the cloud server, fog server, and user's local machine. It uses a Hash-Solomon encoding technique to distribute the data in a way that original data cannot be reconstructed from partial information. The scheme leverages fog computing to both utilize cloud storage and securely protect data privacy against insider attacks. Theoretical analysis and experiments demonstrate that the proposed scheme effectively addresses privacy issues in existing cloud storage models.
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.
With growing awareness and concerns regarding to cloud computing and information security, there is a growing awareness and usage of security algorithms into data systems and processes. Confidentiality means the data is understandable to the receiver only for all others it would be waste; it helps in preventing the unauthorized disclosure of sensitive information. Integrity means data received by receiver should be in the same form, the sender sends it; integrity helps in preventing modification from unauthorized user. Availability refers to assurance that user has access to information anytime and to any network. In the cloud confidentiality is obtained by cryptography. Cryptography is technique of converting data into unreadable form during storage and transmission, so that it appears waste to intruders. In the cloud integrity can be checked using a message authentication code (MAC) algorithm. Also by the help of calculating the hashing value. But both methods are not practically possible for large amount of data. Here symmetric algorithms (like IDEA, Blowfish, and DES) and asymmetric algorithms (like RSA, Homomorphic) are used for cloud based services that require data encryption. While sending data and during storage data is under threat because any unauthorized user can access it, modify it, so there is need to secure data. Any data is secure, if it fulfills three conditions i.e., Confidentiality, Integrity and Availability. There is a need to find a way to check data integrity while saving bandwidth and computation power. Remote data auditing, by which the data integrity or correctness of remotely stored data is investigated, has been given more attention recently.
International Journal of Engineering and Science Invention (IJESI)inventionjournals
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
Implementation of De-Duplication AlgorithmIRJET Journal
The document describes an implementation of a data de-duplication algorithm using convergent encryption. It discusses how data de-duplication works to reduce storage usage by identifying and removing duplicate copies of data. Convergent encryption is used, which generates the same encrypted form of a file from the original file's hash, allowing duplicate encrypted files to be de-duplicated while preserving privacy. The algorithm divides files into blocks, generates hashes for each block, and encrypts the file blocks using the hashes as keys. When a file is uploaded, its hash is checked against existing hashes to identify duplicates, with duplicates replaced by pointers to the stored copy. This allows efficient de-duplication while encrypting data for privacy and security when stored
A Review on Key-Aggregate Cryptosystem for Climbable Knowledge Sharing in Clo...Editor IJCATR
The Data sharing is an important functionality in cloud storage. In this article, we show how to securely, efficiently, and
flexibly share data with others in cloud storage. We describe new public-key cryptosystems which produce constant-size ciphertexts
such that efficient delegation of decryption rights for any set of ciphertexts are possible. The novelty is that one can aggregate any set
of secret keys and make them as compact as a single key, but encompassing the power of all the keys being aggregated. In other
words, the secret key holder can release a constant-size aggregate key for flexible choices of ciphertext set in cloud storage, but the
other encrypted files outside the set remain confidential. This compact aggregate key can be conveniently sent to others or be stored in
a smart card with very limited secure storage. We provide formal security analysis of our schemes in the standard model. We also
describe other application of our schemes. In particular, our schemes give the first public-key patient controlled encryption for flexible
hierarchy, which was yet to be known.
Secure Data Sharing For Dynamic Groups in Multi-Attorney Manner Using Cloudpaperpublications3
Abstract: Cloud computing provides an economical and efficient solution for sharing data among the cloud users in the group , users sharing data in a multi-attorney manner preserving data and identity privacy from an untrusted cloud, it is still a challenging issue, due to frequent change of the membership in the group. In this paper, we propose a multi-attorney data sharing scheme for the dynamic groups in the cloud. By combing group signature and Tripple DES encryption techniques, any cloud user anonymously share the data with others. In addition, we analyze the security of our scheme with rigorous proofs, and demonstrate the efficiency of our scheme in experiments.Keywords: cloud computing, data sharing, privacy-preserving, access control, and dynamic groups.
Title: Secure Data Sharing For Dynamic Groups in Multi-Attorney Manner Using Cloud
Author: Vijaya Kumar Patil C, Manjunath H
International Journal of Recent Research in Mathematics Computer Science and Information Technology
ISSN 2350-1022
Paper Publications
Enhancing Cloud Computing Security for Data Sharing Within Group Membersiosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Psdot 12 a secure erasure code-based cloud storageZTech Proje
The document proposes a secure cloud storage system that uses a threshold proxy re-encryption scheme integrated with a decentralized erasure code. This allows the system to securely store and retrieve data, as well as securely forward data from one user to another without retrieving it directly. The system addresses limitations of traditional encryption for cloud storage by distributing keys and enabling storage servers to directly forward encrypted data between users.
This document summarizes a research paper on secured authorized deduplication in a hybrid cloud system. The system aims to provide data deduplication, differential authorization for access, and confidentiality of data files. It involves a public cloud for storage, a private cloud for managing access tokens, and users who generate keys for files stored on the public cloud. When uploading a file, the user encrypts it and sends it to the public cloud along with the key to the private cloud. To download, the user must provide the correct key to the private cloud to gain access to encrypted files from the public cloud. This hybrid cloud model uses deduplication for storage optimization while controlling access through differential authorization of private keys.
A Novel Approach for Data Security in Cloud EnvironmentSHREYASSRINATH94
Businesses and enterprises are shifting their work base from traditional obsolete systems to cloud servers. The reasons of the shift are rapid deployment of an application which enables the developers to launch their applications within a short duration of time, lower cost operating models, scalability and ability to use an operational budget. The increased demand for computer-intensive applications led to a huge growth in cloud services. Security of the stored files and applications in the cloud is a major concern due to lack of standardized control of the cloud. Traditional cryptographic algorithms like AES and RSA, though robust in nature, are not lightweight in a mobile cloud environment. This paper proposes a novel cryptographic method wherein the file is first encrypted and then stored in cloud and is decrypted using the same key which is used for encryption as and when needed. The experimental results of the identified test cases indeed prove that the proposed algorithm is lightweight in nature in terms of less execution time and less processing cycles. The lightweight approach of the proposed algorithm will benefit the user to encrypt large files in cloud.
Exchange Protocols on Network File Systems Using Parallel Sessions Authentica...IJMTST Journal
In this work we studied the key establishment for secure many-to-many communications. The main
problem is inspired by the rapid increase of large-scale distributed file systems supporting parallel access to
multiple storage devices. The system focus on the current Internet standard for such file systems, i.e.,
parallel Network File System (pNFS), which makes use of Kerberos key exchange protocols to implement
parallel session keys between clients and storage servers. Our study of the existing Kerberos protocol shows
that it has a number of limitations: (i) a metadata server providing key exchange among the clients and the
storage devices has heavy workload that limits the scalability of the protocol; (ii) the protocol cannot provide
forward secrecy; (iii) the metadata server generates all the session keys for securing communication between
clients and storage devices, and this inadvertently leads to key escrow. In this paper, we put forward three
different authenticated key exchange protocols that are designed to address the above issues. We prove that
our protocols are capable for minimizing up to almost50% of the workload of the metadata server and at the
same time supporting forward secrecy and escrow-prevention. All this requires only a small fraction of
increased computation overhead at the client.
IRJET- Storage Security in Cloud ComputingIRJET Journal
This document summarizes a research paper that proposes a dual encryption method for securing data in cloud computing. The method first encrypts data files using the AES symmetric encryption algorithm, producing ciphertext-1. It then encrypts ciphertext-1 again using the Blowfish asymmetric encryption algorithm with a randomly generated key, producing ciphertext-2. This double encryption makes the data more secure, as an attacker would need to decrypt both ciphers to access the original content. The method aims to protect sensitive data from hackers and provide stronger security for cloud storage compared to single encryption algorithms.
China currency appreciation issues in usagnetworking
Golden Networking's China Leaders Forum 2011, "How American Companies Can Plug into the Chinese Rocket-Propelled Economy?" (http://www.ChinaLeadersForum.com), Conference Hosted by Schulte Roth & Zabel LLP in New York City
O documento descreve a história de um aluno de mestrado que tentou resolver o problema de uma cidade dividida por um rio perigoso usando catapultas para lançar pessoas ao outro lado. Ele realizou três experimentos com melhorias incrementais, mas foi reprovado por não seguir boas práticas de pesquisa como revisão bibliográfica adequada e escolha de uma solução já existente.
For further details contact:
N.RAJASEKARAN B.E M.S 9841091117,9840103301.
IMPULSE TECHNOLOGIES,
Old No 251, New No 304,
2nd Floor,
Arcot road ,
Vadapalani ,
Chennai-26.
This document proposes a secure cloud storage system that uses erasure coding and threshold proxy re-encryption to securely store and forward data. It addresses issues with existing systems that require users to perform computations and decryption. The proposed system allows storage servers to independently encode, re-encrypt, and partially decrypt data to enable more efficient storage and direct data forwarding between users. Key servers also distribute cryptographic keys for increased security compared to storing keys on a single device.
This document summarizes a research paper that proposes a secure method for storing data in the cloud using a third party auditor. The key points are:
1) A flexible distributed storage integrity auditing mechanism (FDSIAM) is proposed that utilizes techniques like homomorphic tokens, blocking/unblocking factors, and distributed erasure-coded data to ensure data integrity and availability even when stored on untrusted servers.
2) A third party auditor (TPA) is introduced to reduce the burden on users for auditing the integrity of their cloud data. The TPA can check data integrity without learning the actual data content.
3) The proposed scheme supports secure dynamic operations on cloud data like block modifications while
IRJET- A Secure Erasure Code-Based Cloud Storage Framework with Secure Inform...IRJET Journal
The document proposes a secure cloud storage framework that uses a threshold proxy re-encryption scheme and decentralized erasure codes to provide secure data storage and forwarding functionality in a distributed manner. Key features include encrypting data before encoding and storage, distributing secret key shares to key servers, allowing storage servers to independently encode and re-encrypt data, and allowing key servers to independently perform partial decryption. The framework aims to reduce computation and communication costs for the data owner during forwarding compared to a straightforward solution, while maintaining security against collusion attacks on encrypted data in storage servers.
For further details contact:
N.RAJASEKARAN B.E M.S 9841091117,9840103301.
IMPULSE TECHNOLOGIES,
Old No 251, New No 304,
2nd Floor,
Arcot road ,
Vadapalani ,
Chennai-26.
www.impulse.net.in
Email: ieeeprojects@yahoo.com/ imbpulse@gmail.com
This document describes a secure cloud storage system that uses erasure coding and threshold proxy re-encryption to allow data forwarding while maintaining security. The system encrypts, encodes, and distributes user data across multiple storage servers. It also allows users to securely forward their data to other users without retrieving it from the storage servers first. The proposal analyzes parameters for the number of data copies and storage servers queried to balance storage needs and robustness.
1. The document proposes a system for secure user authentication and access control for encrypted data stored in the cloud. It aims to address issues with centralized access control and storing data in plaintext.
2. The proposed system uses a key distribution center to generate public, private, and access keys for authentication at different levels. Data is encrypted before being fragmented and distributed across multiple servers.
3. Only authorized users with proper keys can decrypt the data. Access policies set by data creators restrict which users can access files. Storing encrypted and distributed data along with key-based authentication aims to improve security over existing cloud storage systems.
Revocation based De-duplication Systems for Improving Reliability in Cloud St...IRJET Journal
1) The document discusses improving the reliability of deduplication systems in cloud storage by implementing user revocation along with Shamir's secret sharing scheme and ramp secret sharing scheme.
2) Deduplication systems aim to eliminate redundant data and achieve single instance storage, but reliability and security are ongoing issues when users are revoked.
3) The paper proposes using Shamir's secret sharing algorithm and ramp secret sharing scheme for encryption to maintain reliability when users are removed by allowing the data to be rechecked for duplication.
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.
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.
Dynamic Resource Provisioning with Authentication in Distributed DatabaseEditor IJCATR
Data center have the largest consumption amounts of energy in sharing the power. The public cloud workloads of different
priorities and performance requirements of various applications [4]. Cloud data center have capable of sensing an opportunity to present
different programs. In my proposed construction and the name of the security level of imperturbable privacy leakage rarely distributed
cloud system to deal with the persistent characteristics there is a substantial increases and information that can be used to augment the
profit, retrenchment overhead or both. Data Mining Analysis of data from different perspectives and summarizing it into useful
information is a process. Three empirical algorithms have been proposed assignments estimate the ratios are dissected theoretically and
compared using real Internet latency data recital of testing methods
A Survey Paper On Data Confidentiatity And Security in Cloud Computing Using ...IJSRD
Now days rapidly increased use of cloud computing in the many organization and IT industries and provides latest software solution with minimum cost. So the cloud computing give us number of benefits with minimum cost and of data accessibility through Internet. The ensuring security risks of the cloud computing is the main factor in the cloud computing environment, The evolving essence is Cloud computing, that is beneficial in cost effective parts, such as capability inflexible computing, decreasing the time period to market and insufficient computing power. By using the complete ability of cloud computing, data are transmitted, processed and stored on the outside cloud service providers. The fact is that, the owner of the data is feeling extremely unconfident to locate their data outer to their own control. Security and Confidentiality of data stored in the cloud are key setbacks in the area of Cloud Computing. Security and Confidentiality are the key issues for cloud storage. This paper proposes a KIST encryption algorithm to concentrate on the security and Confidentiality issues in cloud storage and also compressed cipher text data in order to protect the data stored in the cloud.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Providing user security guarantees in public infrastructure cloudsKamal Spring
The infrastructure cloud (IaaS) service model offers improved resource flexibility and availability, where tenants – insulated from the minutiae of hardware maintenance – rent computing resources to deploy and operate complex systems. Large-scale services running on IaaS platforms demonstrate the viability of this model; nevertheless, many organizations operating on sensitive data avoid migrating operations to IaaS platforms due to security concerns. In this paper, we describe a framework for data and operation security in IaaS, consisting of protocols for a trusted launch of virtual machines and domain-based storage protection. We continue with an extensive theoretical analysis with proofs about protocol resistance against attacks in the defined threat model. The protocols allow trust to be established by remotely attesting host platform configuration prior to launching guest virtual machines and ensure confidentiality of data in remote storage, with encryption keys maintained outside of the IaaS domain. Presented experimental results demonstrate the validity and efficiency of the proposed protocols. The framework prototype was implemented on a test bed operating a public electronic health record system, showing that the proposed protocols can be integrated into existing cloud environments.
Secure Data Storage in Cloud Using Encryption and Steganographyiosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
This document summarizes a research paper on secure data storage in the cloud using encryption and steganography. It proposes a scheme that encrypts files before uploading them to the cloud and decrypts them upon download. It also uses text steganography to insert a watermark into HTML files and image steganography to embed a watermark into image files to uniquely identify the file owner. The paper discusses challenges with secure cloud data storage and outlines the modules of the proposed system, including client, system, cloud data storage, cloud authentication server, and encryption/steganography modules. It also describes threats from unauthorized data modification, adversaries, and system requirements.
This document summarizes a research paper that proposes a scheme for ensuring security and reliability of data stored in the cloud. The scheme utilizes erasure coding to redundantly store encrypted data fragments across multiple cloud servers. It generates homomorphic tokens that allow auditing of the data storage and identification of any misbehaving servers. The scheme supports secure dynamic operations like modification, deletion and append of cloud data files. Analysis shows the scheme is efficient and resilient against various security threats like server compromises or failures. It ensures storage correctness and fast localization of data errors in the cloud.
The Time-Consuming Task Of Preparing A Data Set For...Kimberly Thomas
The document discusses preparing data sets for analysis in data mining and privacy preserving techniques. It states that preparing data sets is a time-consuming task that requires complex SQL queries, joining tables, and aggregating columns. Significant manual effort is needed to build data sets in a horizontal layout. It also discusses the need for privacy-preserving algorithms to protect sensitive data during the data mining process. The document proposes using case, pivot and SPJ methods to horizontally aggregate data, then employing a homomorphic encryption scheme to preserve privacy during the aggregations. Homomorphic encryption allows computations on encrypted data to produce an encrypted result that matches the result of operations on plaintext.
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
IRJET- Efficient Privacy-Preserving using Novel Based Secure Protocol in SVMIRJET Journal
This document presents a novel framework for improving privacy and efficiency in support vector machine (SVM) classification. The framework uses a lightweight multiparty random masking protocol to encrypt user data before it is sent to a server for SVM classification. The classification results are then stored in the cloud. A polynomial aggregation protocol is also used to prevent data leakage while maintaining privacy. The proposed approach is evaluated using two real datasets and is shown to achieve higher accuracy and efficiency compared to conventional methods, while ensuring user data privacy.
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
Northern Engraving | Modern Metal Trim, Nameplates and Appliance PanelsNorthern Engraving
What began over 115 years ago as a supplier of precision gauges to the automotive industry has evolved into being an industry leader in the manufacture of product branding, automotive cockpit trim and decorative appliance trim. Value-added services include in-house Design, Engineering, Program Management, Test Lab and Tool Shops.
Essentials of Automations: Exploring Attributes & Automation ParametersSafe Software
Building automations in FME Flow can save time, money, and help businesses scale by eliminating data silos and providing data to stakeholders in real-time. One essential component to orchestrating complex automations is the use of attributes & automation parameters (both formerly known as “keys”). In fact, it’s unlikely you’ll ever build an Automation without using these components, but what exactly are they?
Attributes & automation parameters enable the automation author to pass data values from one automation component to the next. During this webinar, our FME Flow Specialists will cover leveraging the three types of these output attributes & parameters in FME Flow: Event, Custom, and Automation. As a bonus, they’ll also be making use of the Split-Merge Block functionality.
You’ll leave this webinar with a better understanding of how to maximize the potential of automations by making use of attributes & automation parameters, with the ultimate goal of setting your enterprise integration workflows up on autopilot.
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
"NATO Hackathon Winner: AI-Powered Drug Search", Taras KlobaFwdays
This is a session that details how PostgreSQL's features and Azure AI Services can be effectively used to significantly enhance the search functionality in any application.
In this session, we'll share insights on how we used PostgreSQL to facilitate precise searches across multiple fields in our mobile application. The techniques include using LIKE and ILIKE operators and integrating a trigram-based search to handle potential misspellings, thereby increasing the search accuracy.
We'll also discuss how the azure_ai extension on PostgreSQL databases in Azure and Azure AI Services were utilized to create vectors from user input, a feature beneficial when users wish to find specific items based on text prompts. While our application's case study involves a drug search, the techniques and principles shared in this session can be adapted to improve search functionality in a wide range of applications. Join us to learn how PostgreSQL and Azure AI can be harnessed to enhance your application's search capability.
Northern Engraving | Nameplate Manufacturing Process - 2024Northern Engraving
Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
ScyllaDB is making a major architecture shift. We’re moving from vNode replication to tablets – fragments of tables that are distributed independently, enabling dynamic data distribution and extreme elasticity. In this keynote, ScyllaDB co-founder and CTO Avi Kivity explains the reason for this shift, provides a look at the implementation and roadmap, and shares how this shift benefits ScyllaDB users.
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...Jason Yip
The typical problem in product engineering is not bad strategy, so much as “no strategy”. This leads to confusion, lack of motivation, and incoherent action. The next time you look for a strategy and find an empty space, instead of waiting for it to be filled, I will show you how to fill it in yourself. If you’re wrong, it forces a correction. If you’re right, it helps create focus. I’ll share how I’ve approached this in the past, both what works and lessons for what didn’t work so well.
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
Session 1 - Intro to Robotic Process Automation.pdfUiPathCommunity
👉 Check out our full 'Africa Series - Automation Student Developers (EN)' page to register for the full program:
https://bit.ly/Automation_Student_Kickstart
In this session, we shall introduce you to the world of automation, the UiPath Platform, and guide you on how to install and setup UiPath Studio on your Windows PC.
📕 Detailed agenda:
What is RPA? Benefits of RPA?
RPA Applications
The UiPath End-to-End Automation Platform
UiPath Studio CE Installation and Setup
💻 Extra training through UiPath Academy:
Introduction to Automation
UiPath Business Automation Platform
Explore automation development with UiPath Studio
👉 Register here for our upcoming Session 2 on June 20: Introduction to UiPath Studio Fundamentals: https://community.uipath.com/events/details/uipath-lagos-presents-session-2-introduction-to-uipath-studio-fundamentals/
What is an RPA CoE? Session 2 – CoE RolesDianaGray10
In this session, we will review the players involved in the CoE and how each role impacts opportunities.
Topics covered:
• What roles are essential?
• What place in the automation journey does each role play?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
What is an RPA CoE? Session 1 – CoE VisionDianaGray10
In the first session, we will review the organization's vision and how this has an impact on the COE Structure.
Topics covered:
• The role of a steering committee
• How do the organization’s priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
As03302670271
1. International Journal Of Computational Engineering Research (ijceronline.com) Vol. 3 Issue. 3
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Secure Data Forwarding In Distributed Environment Using
Cloud Storage System
S.Amritha1,
S.Saravana Kumar2
1,
M.E.(Cse), Srinivasan Engg College,Perambalur,Tamilnadu,India.
2,Ap/Cse, Srinivasan Engg College,Perambalur,Tamilnadu,India.
Abstract:
A cloud storage system, used to store large number of data in storage server. Cloud system is used to
provide large number storage servers, which provide long-term storage service over the Internet. Third party’s
cloud system does not provide data confidentiality. Constructing centralized storage system for the cloud system
makes hackers stole data easily. General encryption schemes protect data confidentiality. In the proposed
system a secure distributed storage system is formulated by integrating a threshold proxy re-encryption scheme
with a decentralized erasure code. The distributed storage system not only supports secure and robust data
storage and retrieval, but also lets a user forward data from one user to another without retrieving the data back.
The main technical involvement is that the proxy re-encryption scheme supports encoding operations over
encrypted messages as well as forwarding operations over encoded and encrypted messages. The method fully
integrates encrypting, encoding, and forwarding. The proposed system is applied for military and hospital
applications, then other secret data transmission.
Keywords: Decentralized erasure code, proxy re-encryption, threshold cryptography, secure storage system.
1. Introduction
Cloud computing is a model that treats the resources on the Internet as a unified entity, a cloud. Users
use a service without being concerned about how computation is done and storage is managed. This method
used to focus on designing a cloud storage system for robustness, privacy, and functionality. A cloud storage
system is considered as a large scale distributed storage system that consists of many self-governing storage
servers. Data robustness is a major obligation for storage systems. There are many proposals of storing data over
storage servers. One way to present data robustness is to duplicate a message such that each storage server stores
a copy of the message. It is robust because the message can be retrieved as long as one storage server survives.
Another way is to encrypt a message of k symbols into a codeword of n symbols by erasure coding. To store a
message, each of its encoded messages is stored in a various storage server.A storage server failure corresponds
to an erasure error of the encode symbol. As long as the number of failure servers is under the acceptance
threshold of the erasure code, the message can be recovered from the encode symbols stored in the available
storage servers by the decoding process. This provides a trade off between the storage size and the acceptance
threshold of failure servers. A decentralized erasure code is an erasure code that independently computes each
codeword symbol for an encrypted message. Thus, the encoding process for a message used to split up message
into n parallel tasks of generating codeword symbols. A distributed storage system is constructed a decentralized
erasure code. After the messages are sent to storage servers, each storage server separately computes a
codeword symbol for the received message and stores it. This finishes the encoding operation and storing
process. The recovery process is also the same process like a encoding process. Storing data in a third party’s
cloud system will not provide a data confidentiality. In order to provide well-built confidentiality for messages
in storage servers, a user encrypt messages by a threshold cryptography method before applying an erasure code
method to encode and store messages. When user wants to use a message, user needs to recover the codeword
symbols from storage servers, decode, and decrypt them by using cryptography keys. There are three problems
in the above simple integration of encryption and encoding methods. First, the user has to do computation and
the communication traffic between the user and storage servers is far above the ground. Second, the user has to
manage his cryptography keys. If the user’s tool of storing the keys is vanished or compromise, the security is
broken. Finally, in addition data storing and retrieving, it is inflexible for storage servers to directly support
other functions. For example, storage servers cannot frankly forward a user’s messages to another user. The
owner of messages has to retrieve message, decode, decrypt and then forward them to another user.
2. Related work
2.1. Ocean Store
Ocean Store is a utility infrastructure designed to span the globe and provide continuous access to
persistent information. Since this infrastructure is comprised of untrusted servers, data is protected through
2. Secure Data Forwarding In Distributed…
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redundancy and cryptographic techniques. To improve performance, data is allowed to be cached anywhere,
anytime. Additionally, monitoring of usage patterns allows adaptation to regional outages and denial of service
attacks; monitoring also enhances performance through pro-active movement of data. A prototype
implementation is currently under development. In the past decade it has seen astounding growth in the
performance of computing devices. Even more significant has been the rapid pace of miniaturization and related
reduction in power consumption of these devices. Before such a revolution can occur, however, computing
devices must become so reliable and resilient that they are completely transparent to the user.
2.2. PAST
This technique sketches the design of PAST, a large-scale, Internet-based, global storage utility that
provides scalability, high availability, persistence and security. PAST is a peer-to-peer Internet application and
is entirely self organizing. PAST nodes serve as access points for clients, participate in the routing of client
requests, and contribute storage to the system. Nodes are not trusted, they may join the system at any time and
may silently leave the system Without warning. Yet, the system is able to provide strong assurances, efficient
storage access, load balancing and scalability. Among the most interesting aspects of PAST’s design are(1) the
Pastry location and routing scheme, which reliably and efficiently routes client requests among the PAST nodes,
has good network locality properties and automatically resolves node failures and node additions; (2) the use of
randomization to ensure diversity in the set of nodes that store a file’s replicas and to provide load balancing;
and (3) the optional use of smartcards, which are held by each PAST user and issued by a third party called a
broker. The smartcards support a quota system that balances supply and demand of storage in the system.There
are currently many projects aimed at constructing peer-to-peer applications and understanding more of the
issues and requirements of such applications and systems. Peer-to-peer systems can be characterized as
distributed systems in which all nodes have identical capabilities and responsibilities and all communication is
symmetric. We are developing PAST, an Internet-based, peer-to-peer global storage utility, which aims to
provide strong persistence, high availability, scalability and security. The PAST system is composed of nodes
connected to the Internet, where each node is capable of initiating and routing client requests to insert or retrieve
files. Optionally, nodes may also contribute storage to the system. The PAST nodes form a self-organizing
overlay network. Inserted files are replicated on multiple nodes to ensure persistence and availability.
3. System Model
3.1. Decentralized erasure code
In decentralized erasure code which is used to split up the messages or text data into n number of
blocks. This is used for splitting purpose. Our result n=akc
allows that number of storage server be greater than
the number of blocks of a text data’s. Decentralized erasure code is a first phase of this project. This has been
initiated.In the decentralized erasure code is an erasure code that independently computes each codeword
symbol for a message. Thus, the encoding method for a message can be split into n parallel tasks of generating
codeword symbols. A decentralized erasure code is used in a distributed storage system. The n blocked message
is stored in for the integration process.
3.2. Integration
In an integration processes, the splinted message is joined into an m number of blocks, and stored into
lager storage server. User A encrypts his message M is decomposed into k number of blocks m1,m2, . . .,mk
and which has an identifier ID. User A encrypts each block mi into a cipher text Ci and sends it to v randomly
chosen storage servers. Upon receiving cipher texts from a user, each storage server linearly combines them
with randomly chosen coefficients into a codeword symbol and stores it. Note that a storage server may receive
fewer than k message blocks and we assume that all storage servers know the value k in advance.Integration is
used to combine messages into m number of block, which is encrypted and stored into a large number storage
server. Then forward to user B. Data which is encrypted by using single key. This is produced by using hash key
algorithm. In the data storage phase, user A encrypts his message M and dispatches it to storage servers. A
message M is decomposed into k number of blocks m1, m2, . . .,mk and which has an identifier ID. User A
encrypts each block mi into a cipher text Ci and sends it to v randomly chosen storage servers. Upon receiving
cipher texts from a user, each storage server linearly combines them with randomly chosen coefficients into a
codeword symbol and stores it. Note that a storage server may receive fewer than k message blocks and it
assumes that all storage servers know the value k in advance.
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Fig 1: Overview architecture
3.3. Encryption
This is used to encrypt a plain text into a cipher text. Cipher text is produced along with a single key.
This key is used to convert the cipher text again into a plain text. The integrated data is encrypted with a single
key using random key generation method. Hash key algorithm using random key generation. This is used to
generate, the random key. Whenever users encrypt the text, each season time a new key is generated.Storing
data in a third party cloud does not provide Confidentiality in cloud storage. Data confidentiality is provided by
threshold proxy re-encryption scheme. Using this technique the data is encrypted twice and key is generated by
a random key generation methods using hash algorithm. This is used to generate the more than 10,000 key at the
session time.
3.4. Data forwarding
In the data forwarding phase, user A forwards his encrypted message with an identifier ID stored in
storage servers to user B such that B can decrypt the forwarded message by his secret key. To do so, A uses his
secret key SKA and B’s public key PKB to compute a re-encryption key RKID
A->B and then sends RKID
A->B to all
storage servers. Every storage server uses the re encryption key to re-encrypt its codeword symbol for later
retrieval needs by B. The re-encrypted codeword symbol is the grouping of cipher texts under B’s public key. In
order to differentiate re-encrypted codeword symbols from intact ones, we call them unique codeword symbols
and re-encrypted codeword symbols, correspondingly.
3.5. Login
Log in page make user to access an account in a cloud server. When user has an account in the cloud
server for accessing data and provides other services. User can sign up the page directly else users needed to
create new account using create account option.
3.6. Uploading File
User after sing up his/her account. User forward data to another user using his/her account. Using id of
an user and IP address. Upload encrypted files and forward to a user. User upload files along with a key which is
used to encrypt the text.
3.7. Data Retrieval
Date retrieval is the final module of this project. User download data and using proxy re-encryption
method text decoded and partial decrypted. A proxy server can transfer a cipher text under a public key PKA to a
new one under another public key PKB by using the re-encryption key RKA->B. In the data retrieval phase, user A
retrieves a message from storage servers. The message is either stored by user A or forwarded to user A. User A
sends a recovery request to key servers. Upon receiving the recovery request and execute a proper verification
process with user A, each key server KSi needs u randomly chosen storage servers to get code symbols and does
partial decryption on the received code symbols by using the key share SKA,i. Finally, user A combine the
partially decrypted codeword symbols to obtain the original message M.There are two suitcases for the data
recovery phase. The first case is that a user A retrieves his own message from cloud. When user A needs to
retrieve the message with an identifier ID, he informs all key servers with the individuality token A key server
first retrieves original code symbols from u randomly chosen storage servers and then performs partial
decryption Share Dec on every retrieved original codeword symbol. The result of partial decryption is called a
partially decrypted code symbol. The key server sends the moderately decrypted codeword symbols and the
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coefficients to user A. After user A collects replies from at smallest amount t key servers and at least k of them
are originally from distinct storage servers, he executes Combine on the t partially decrypted codeword symbols
to recover the blocks m1,m2, . . .,mk. The second case is that a user B retrieves a message forwarded to user B.
User B informs all key servers straight. The collection and combining parts are the same as the first case except
that key servers retrieve re-encrypted codeword symbols and perform partial decryption Share-Decrypted on re-
encrypted codeword symbols.
4. Experimental Result
This experiment shows that our approach is practical and could be used in secure data forwarding in
distributed environment using cloud storage system. The empirical results show that cost reduction, time
consuming, provide more security.
Fig 2: This result shows that compare to the previous system, the proposed system is provide more security, low
cost, time consuming.
5. Conclusion
The study of existing system has revealed the use of centralized server, micro bench mark and Third
Party Auditor (TPA). The implementations of the traditional systems have resulted in crashes, DOS attacks and
unavailability due to regional network outages. In the proposed system a secure distributed storage system is
formulated by integrating a threshold proxy re-encryption scheme with a decentralized erasure code. The proxy
re-encryption scheme supports not only the expected encoding operations over encrypted messages but also the
forwarding operations over encoded and encrypted messages.
6. Acknowledgements
This work was presented in part at the IEEE International Conference on Communications (ICC), 2012.
This work was can be done in part of in our institution and support of all staff members.
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AUTHORS PROFILE
S.Saravana kumar is working as Assistant Professor/CSE, Srinivasan Engineering
College – Dhanalakshmi Srinivasan Group of Institutions, Perambalur, TN, India.
His research interest includes pervasive computing, Wireless Networks and Image
Processing.
S.Amritha received the B.E Degree computer science and engineering and now she is
an M.E student in the Department of Computer Science & Engineering, Srinivasan
Engineering College – Dhanalakshmi Srinivasan Group of Institutions, Perambalur,
TN, India.
Her research interest includes Network Security and Mobile Computing.