To Get any Project for CSE, IT ECE, EEE Contact Me @ 09666155510, 09849539085 or mail us - ieeefinalsemprojects@gmail.com-Visit Our Website: www.finalyearprojects.org
Securing broker less publish subscribe systems using identity-based encryptionShakas Technologies
This document proposes a system for securing brokerless publish/subscribe systems using identity-based encryption. It aims to provide authentication of publishers and subscribers as well as confidentiality of events. The system adapts identity-based encryption techniques to allow subscribers to decrypt events only if their credentials match the encrypted credentials associated with the event. It also defines a weaker notion of subscription confidentiality and designs a secure overlay maintenance protocol to preserve it. Evaluations show the approach can provide security affordably with respect to throughput and delays incurred during system operations.
Securing broker less publish subscribe systems using identity-based encryption Adz91 Digital Ads Pvt Ltd
The document proposes a system that provides authentication and confidentiality in a broker-less content-based publish/subscribe system. It adapts identity-based encryption mechanisms to ensure only subscribers with matching credentials can decrypt events. A secure overlay clusters subscribers to preserve weak subscription confidentiality. The system evaluates performance of the security mechanisms, finding authentication and encryption costs are proportional to subscribed attributes. Delays increase modestly with system size.
Securing broker less publish subscribe systems using identity-based encryptionLeMeniz Infotech
This document discusses an Android app for IEEE projects from 2014-2015 developed by LeMeniz Infotech. It provides students with project implementation assistance, exposure to various aspects of the project process, and preparation for placements. It also lists domains and a sample project title involving securing a publish/subscribe system using identity-based encryption. Contact information is given to obtain the full project document.
Securing Broker-Less Publish/Subscribe Systems Using Identity-Based EncryptionJPINFOTECH JAYAPRAKASH
Securing Broker-Less Publish/Subscribe Systems Using Identity-Based Encryption
To get this project in ONLINE or through TRAINING Sessions, Contact:JP INFOTECH, Old No.31, New No.86, 1st Floor, 1st Avenue, Ashok Pillar, Chennai -83.
Landmark: Next to Kotak Mahendra Bank.
Pondicherry Office: JP INFOTECH, #45, Kamaraj Salai, Thattanchavady, Puducherry -9.
Landmark: Next to VVP Nagar Arch.
Mobile: (0) 9952649690 , Email: jpinfotechprojects@gmail.com, web: www.jpinfotech.org
Securing Liaison-Less Publisher/Subscriber Systems using Identity Based Encr...IRJET Journal
This document proposes a novel approach to provide authentication and confidentiality in a broker-less content-based publish/subscribe system. It adapts pairing-based cryptography techniques to ensure authentication of publishers and subscribers as well as confidentiality of events. It also describes an algorithm for clustering subscribers according to their subscriptions to provide a level of protection for subscription confidentiality. The proposed approach provides fine-grained key management and encryption/decryption and routing costs that scale with the number of subscribed attributes. It evaluates the performance of the cryptographic primitives and the overhead of maintaining the publish/subscribe overlay and distributing encrypted events.
JAVA 2013 IEEE CLOUDCOMPUTING PROJECT Attribute based access to scalable medi...IEEEGLOBALSOFTTECHNOLOGIES
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09849539085, 09966235788 or mail us - ieeefinalsemprojects@gmail.com-Visit Our Website: www.finalyearprojects.org
Attribute based access to scalable media in cloud-assisted content sharing ne...JPINFOTECH JAYAPRAKASH
This paper proposes a novel Multi-message Ciphertext Policy Attribute-Based Encryption (MCP-ABE) technique to design an access control scheme for sharing scalable media based on user attributes. MCP-ABE allows encrypting multiple messages within a single ciphertext such that only users with attributes satisfying the access policy can decrypt it. This scheme offloads computation to cloud servers to support resource-limited mobile devices while maintaining data privacy. Existing solutions have issues like high complexity, inflexible policies, or only delivering one encrypted message per ciphertext. The proposed scheme addresses these through MCP-ABE's flexible attribute-based access and ability to encrypt multiple media units together efficiently.
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09666155510, 09849539085 or mail us - ieeefinalsemprojects@gmail.com-Visit Our Website: www.finalyearprojects.org
Securing broker less publish subscribe systems using identity-based encryptionShakas Technologies
This document proposes a system for securing brokerless publish/subscribe systems using identity-based encryption. It aims to provide authentication of publishers and subscribers as well as confidentiality of events. The system adapts identity-based encryption techniques to allow subscribers to decrypt events only if their credentials match the encrypted credentials associated with the event. It also defines a weaker notion of subscription confidentiality and designs a secure overlay maintenance protocol to preserve it. Evaluations show the approach can provide security affordably with respect to throughput and delays incurred during system operations.
Securing broker less publish subscribe systems using identity-based encryption Adz91 Digital Ads Pvt Ltd
The document proposes a system that provides authentication and confidentiality in a broker-less content-based publish/subscribe system. It adapts identity-based encryption mechanisms to ensure only subscribers with matching credentials can decrypt events. A secure overlay clusters subscribers to preserve weak subscription confidentiality. The system evaluates performance of the security mechanisms, finding authentication and encryption costs are proportional to subscribed attributes. Delays increase modestly with system size.
Securing broker less publish subscribe systems using identity-based encryptionLeMeniz Infotech
This document discusses an Android app for IEEE projects from 2014-2015 developed by LeMeniz Infotech. It provides students with project implementation assistance, exposure to various aspects of the project process, and preparation for placements. It also lists domains and a sample project title involving securing a publish/subscribe system using identity-based encryption. Contact information is given to obtain the full project document.
Securing Broker-Less Publish/Subscribe Systems Using Identity-Based EncryptionJPINFOTECH JAYAPRAKASH
Securing Broker-Less Publish/Subscribe Systems Using Identity-Based Encryption
To get this project in ONLINE or through TRAINING Sessions, Contact:JP INFOTECH, Old No.31, New No.86, 1st Floor, 1st Avenue, Ashok Pillar, Chennai -83.
Landmark: Next to Kotak Mahendra Bank.
Pondicherry Office: JP INFOTECH, #45, Kamaraj Salai, Thattanchavady, Puducherry -9.
Landmark: Next to VVP Nagar Arch.
Mobile: (0) 9952649690 , Email: jpinfotechprojects@gmail.com, web: www.jpinfotech.org
Securing Liaison-Less Publisher/Subscriber Systems using Identity Based Encr...IRJET Journal
This document proposes a novel approach to provide authentication and confidentiality in a broker-less content-based publish/subscribe system. It adapts pairing-based cryptography techniques to ensure authentication of publishers and subscribers as well as confidentiality of events. It also describes an algorithm for clustering subscribers according to their subscriptions to provide a level of protection for subscription confidentiality. The proposed approach provides fine-grained key management and encryption/decryption and routing costs that scale with the number of subscribed attributes. It evaluates the performance of the cryptographic primitives and the overhead of maintaining the publish/subscribe overlay and distributing encrypted events.
JAVA 2013 IEEE CLOUDCOMPUTING PROJECT Attribute based access to scalable medi...IEEEGLOBALSOFTTECHNOLOGIES
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09849539085, 09966235788 or mail us - ieeefinalsemprojects@gmail.com-Visit Our Website: www.finalyearprojects.org
Attribute based access to scalable media in cloud-assisted content sharing ne...JPINFOTECH JAYAPRAKASH
This paper proposes a novel Multi-message Ciphertext Policy Attribute-Based Encryption (MCP-ABE) technique to design an access control scheme for sharing scalable media based on user attributes. MCP-ABE allows encrypting multiple messages within a single ciphertext such that only users with attributes satisfying the access policy can decrypt it. This scheme offloads computation to cloud servers to support resource-limited mobile devices while maintaining data privacy. Existing solutions have issues like high complexity, inflexible policies, or only delivering one encrypted message per ciphertext. The proposed scheme addresses these through MCP-ABE's flexible attribute-based access and ability to encrypt multiple media units together efficiently.
An Introduction to Authentication for ApplicationsUbisecure
This document provides an introduction to various authentication methods for applications, including passwords, one-time passwords, social identities, corporate identities, and public key infrastructure (PKI). It discusses the driving forces towards passwordless authentication, including improving customer experience, regulatory pressures, data breaches, and authentication strength. The document evaluates each authentication method based on factors like usability, security, and their ability to meet a given level of assurance. It aims to help readers understand the tradeoffs of different authentication solutions.
Mutual Authentication For Wireless Communicationmanish kumar
The document discusses mutual authentication for wireless communication. It defines mutual authentication as a process where a client and server authenticate each other by exchanging digital certificates using TLS protocol. It describes different types of mutual authentication like certificate-based and username/password-based. It also discusses how to set up mutual authentication, common authentication protocols, and attacks on protocols. It covers advantages of mutual authentication and limitations.
The document proposes a novel privacy-preserving security solution for cloud services that offers anonymous authentication. The solution consists of three parties: a cloud service provider, revocation manager, and users. It provides anonymous access and authentication for users while allowing revoked access for users that break rules via collaboration between the provider and manager. The solution uses cryptography including commitments, zero-knowledge proofs, and trapdoor functions to provide anonymity, confidentiality, integrity, unlinkability, and revocation. It was implemented and tested with results showing better efficiency than related solutions.
Empirical Study of a Key Authentication Scheme in Public Key CryptographyIJERA Editor
Public key cryptosystem plays major role in many online business applications. In public key cryptosystem, public key need not be protected for confidentiality, but the authenticity of public key is needed. Earlier, many key authentication schemes are developed based on discrete logarithms. Each scheme has its own drawbacks. We developed a secure key authentication scheme based on discrete logarithms to avoid the drawbacks of earlier schemes. In this paper, we illustrate the empirical study to show the experimental proof of our scheme.
Data get to control is a powerful method to guarantee the data security in the cloud. Because of information
out sourcing and un confided in cloud servers, the information get to control turns into a testing issue in cloud
storage systems. Cipher text-Policy Attribute Based Encryption (CP-ABE) is viewed as a standout amongst
the most reasonable advancements for information get to control in distributed storage, since it gives
straightforward control access to the owners. It is hard to implement the existing CP-ABE schemes to access
the information from cloud storage systems. we propose a plan to structure the information securing control in
a revocable multi-expert CP-ABE conspire from cloud storage system
This document describes the pattern for digital signatures using hashing. A digital signature allows a principal to prove that a message was originated from them and verifies that the message has not been altered. It works by hashing the message to a fixed length digest, then encrypting the digest with the sender's private key. When received, the signature can be validated by decrypting with the public key and comparing hashes to ensure the message was not modified. Digital signatures provide message authentication, integrity, and non-repudiation of origin.
AAA (Authentication, Authorization, and Accounting) provides important security services for network access. Authentication verifies a user's identity, authorization determines what resources they can access, and accounting tracks usage for auditing purposes. AAA can be implemented on Cisco routers using local databases or external servers like Cisco Secure ACS. Common protocols are RADIUS, TACACS+, and Kerberos, with TACACS+ being more secure since it encrypts the entire authentication process. Authorization then determines which resources and operations a user is allowed to perform once authenticated. Accounting collects security information that can be used for billing, auditing, and reporting user activities. AAA provides benefits like increased flexibility, scalability, backup systems, and standardized authentication methods.
User authentication is the fundamental building block of computer security and involves verifying a claimed identity. There are four general means of authentication: something one knows (e.g. password), possesses (e.g. token), is (e.g. fingerprint), or does (e.g. typing rhythm). Kerberos is an authentication protocol that uses symmetric encryption and involves three exchanges - authentication service, ticket-granting, and client/server authentication. It improved in version 5 by allowing arbitrary lifetimes, encryption tagging, and inter-realm authentication. Transport level security is important for the web given its client/server model over TCP/IP.
The document discusses computer security concepts including classical encryption techniques and the OSI security architecture. It defines computer security as protecting the confidentiality, integrity and availability of information system resources. Confidentiality ensures private information is not disclosed, integrity ensures information is not altered without authorization, and availability ensures authorized parties can access information when needed. The document outlines security attacks like passive eavesdropping and active attacks that modify data. It also describes security services like authentication, access control, data confidentiality and integrity, non-repudiation and availability. Security mechanisms to provide these services include encryption, digital signatures and access control methods.
The document proposes a cross-domain security reference architecture with the following key elements:
- A framework to discuss the multi-faceted concerns of cross-domain security (CDS), including infrastructure, information, workflow, application, and policy aspects.
- CDS participants like security domains, security monitors, mission applications, and security guards. Guards are associated with a single security domain.
- Design decisions around guards being aware participants in workflows and trusting each other through mutual authentication.
- Opportunities to standardize interactions through CDS protocols for application interfaces, inter-guard coordination, security monitor interfaces, and a CDS ontology.
Author: Dr Sandeep Sood
Password-based authentication is used in online web applications due to its simplicity and convenience. Efficient password-based authentication schemes are required to authenticate the legitimacy of remote users, or data origin over an insecure communication channel. Password-based authentication schemes are highly susceptible to phishing attacks.
USING LATTICE TO DYNAMICALLY PREVENT INFORMATION LEAKAGE FOR WEB SERVICESijsptm
This document summarizes a research paper that proposes a new information flow control model called WSIFC (Web Service Information Flow Control) to dynamically prevent information leakage for web services. WSIFC is based on a lattice model and uses security levels and tags to monitor and control flows of sensitive information during web service execution. It aims to reduce the runtime overhead of previous information flow control models for web services while still preventing information leakage. The key concepts of WSIFC including sensitive variables, screens, files, security levels, tags, and rules for controlling information flows are defined and explained.
This document provides an overview and introduction to cryptography and network security. It outlines key concepts like confidentiality, integrity, and availability. It also describes standards organizations, different types of security attacks and services, and security mechanisms. Models for network security and access are presented, which involve selecting appropriate identification and access control functions.
This lecture discusses HTTPS, SSL, and TLS. It explains that HTTPS establishes an encrypted link between a web browser and server using SSL/TLS protocols. SSL/TLS uses public key cryptography for authentication and symmetric encryption for secure data transfer. The lecture covers the SSL handshake process, different types of SSL certificates, and validation levels. It also describes how TLS evolved from SSL and its functions of encryption, authentication, and integrity.
EMAP Expedite Message Authentication Protocol for Vehicular Ad Hoc NetworksKaashivInfoTech Company
The document proposes an Expedite Message Authentication Protocol (EMAP) for vehicular ad hoc networks that replaces the time-consuming process of checking certificate revocation lists with a more efficient revocation checking process using keyed hash message authentication codes. EMAP also uses a novel probabilistic key distribution method that allows non-revoked vehicles to securely share and update a secret key. Analysis shows that EMAP can significantly reduce message loss compared to conventional authentication methods using certificate revocation lists while providing security.
This document discusses basic terms related to information security and cryptography. It defines the three pillars of information security as confidentiality, integrity, and availability. Confidentiality means only authorized individuals can access information. Integrity means data cannot be altered without authorization. Availability means information systems are functioning and information is accessible when needed. The document also defines basic cryptography terms like encryption, decryption, cryptographic keys, message digests, digital signatures, public key infrastructure, and digital identity certificates. It explains how these concepts work to provide security for information.
Efficient authentication for mobile and pervasive computing Shakas Technologies
The document proposes two novel techniques for authenticating short encrypted messages that meet the requirements of mobile and pervasive applications. The techniques are more efficient than existing message authentication codes by utilizing the security provided by the underlying encryption algorithm, rather than using standalone authentication primitives. Specifically, one technique appends a short random string to the encrypted message for authentication purposes, while the second improves on this by leveraging properties of block cipher-based encryption algorithms.
LOCAWARD A SECURITY AND PRIVACY AWARE LOCATION-BASED REWARDING SYSTEMShakas Technologies
The document proposes LocaWard, a location-based rewarding system that addresses security and privacy issues with existing systems. In LocaWard, mobile users collect tokens from merchants by visiting locations and can redeem tokens at other participating merchants for rewards. The system uses a protocol to distribute tokens securely while protecting users' private information like identities and locations. An implementation of LocaWard showed it efficiently handles computations, communications, energy use, and storage.
This document proposes a cooperative caching scheme to improve data access performance in disruption tolerant networks. The scheme caches data at network central locations that can be easily accessed by other nodes. An efficient selection metric is used to choose appropriate central locations, and caching nodes are coordinated to optimize accessibility and overhead. Simulation results show the approach significantly reduces data access delay compared to existing schemes, especially when the average inter-contact time between nodes is long.
An Introduction to Authentication for ApplicationsUbisecure
This document provides an introduction to various authentication methods for applications, including passwords, one-time passwords, social identities, corporate identities, and public key infrastructure (PKI). It discusses the driving forces towards passwordless authentication, including improving customer experience, regulatory pressures, data breaches, and authentication strength. The document evaluates each authentication method based on factors like usability, security, and their ability to meet a given level of assurance. It aims to help readers understand the tradeoffs of different authentication solutions.
Mutual Authentication For Wireless Communicationmanish kumar
The document discusses mutual authentication for wireless communication. It defines mutual authentication as a process where a client and server authenticate each other by exchanging digital certificates using TLS protocol. It describes different types of mutual authentication like certificate-based and username/password-based. It also discusses how to set up mutual authentication, common authentication protocols, and attacks on protocols. It covers advantages of mutual authentication and limitations.
The document proposes a novel privacy-preserving security solution for cloud services that offers anonymous authentication. The solution consists of three parties: a cloud service provider, revocation manager, and users. It provides anonymous access and authentication for users while allowing revoked access for users that break rules via collaboration between the provider and manager. The solution uses cryptography including commitments, zero-knowledge proofs, and trapdoor functions to provide anonymity, confidentiality, integrity, unlinkability, and revocation. It was implemented and tested with results showing better efficiency than related solutions.
Empirical Study of a Key Authentication Scheme in Public Key CryptographyIJERA Editor
Public key cryptosystem plays major role in many online business applications. In public key cryptosystem, public key need not be protected for confidentiality, but the authenticity of public key is needed. Earlier, many key authentication schemes are developed based on discrete logarithms. Each scheme has its own drawbacks. We developed a secure key authentication scheme based on discrete logarithms to avoid the drawbacks of earlier schemes. In this paper, we illustrate the empirical study to show the experimental proof of our scheme.
Data get to control is a powerful method to guarantee the data security in the cloud. Because of information
out sourcing and un confided in cloud servers, the information get to control turns into a testing issue in cloud
storage systems. Cipher text-Policy Attribute Based Encryption (CP-ABE) is viewed as a standout amongst
the most reasonable advancements for information get to control in distributed storage, since it gives
straightforward control access to the owners. It is hard to implement the existing CP-ABE schemes to access
the information from cloud storage systems. we propose a plan to structure the information securing control in
a revocable multi-expert CP-ABE conspire from cloud storage system
This document describes the pattern for digital signatures using hashing. A digital signature allows a principal to prove that a message was originated from them and verifies that the message has not been altered. It works by hashing the message to a fixed length digest, then encrypting the digest with the sender's private key. When received, the signature can be validated by decrypting with the public key and comparing hashes to ensure the message was not modified. Digital signatures provide message authentication, integrity, and non-repudiation of origin.
AAA (Authentication, Authorization, and Accounting) provides important security services for network access. Authentication verifies a user's identity, authorization determines what resources they can access, and accounting tracks usage for auditing purposes. AAA can be implemented on Cisco routers using local databases or external servers like Cisco Secure ACS. Common protocols are RADIUS, TACACS+, and Kerberos, with TACACS+ being more secure since it encrypts the entire authentication process. Authorization then determines which resources and operations a user is allowed to perform once authenticated. Accounting collects security information that can be used for billing, auditing, and reporting user activities. AAA provides benefits like increased flexibility, scalability, backup systems, and standardized authentication methods.
User authentication is the fundamental building block of computer security and involves verifying a claimed identity. There are four general means of authentication: something one knows (e.g. password), possesses (e.g. token), is (e.g. fingerprint), or does (e.g. typing rhythm). Kerberos is an authentication protocol that uses symmetric encryption and involves three exchanges - authentication service, ticket-granting, and client/server authentication. It improved in version 5 by allowing arbitrary lifetimes, encryption tagging, and inter-realm authentication. Transport level security is important for the web given its client/server model over TCP/IP.
The document discusses computer security concepts including classical encryption techniques and the OSI security architecture. It defines computer security as protecting the confidentiality, integrity and availability of information system resources. Confidentiality ensures private information is not disclosed, integrity ensures information is not altered without authorization, and availability ensures authorized parties can access information when needed. The document outlines security attacks like passive eavesdropping and active attacks that modify data. It also describes security services like authentication, access control, data confidentiality and integrity, non-repudiation and availability. Security mechanisms to provide these services include encryption, digital signatures and access control methods.
The document proposes a cross-domain security reference architecture with the following key elements:
- A framework to discuss the multi-faceted concerns of cross-domain security (CDS), including infrastructure, information, workflow, application, and policy aspects.
- CDS participants like security domains, security monitors, mission applications, and security guards. Guards are associated with a single security domain.
- Design decisions around guards being aware participants in workflows and trusting each other through mutual authentication.
- Opportunities to standardize interactions through CDS protocols for application interfaces, inter-guard coordination, security monitor interfaces, and a CDS ontology.
Author: Dr Sandeep Sood
Password-based authentication is used in online web applications due to its simplicity and convenience. Efficient password-based authentication schemes are required to authenticate the legitimacy of remote users, or data origin over an insecure communication channel. Password-based authentication schemes are highly susceptible to phishing attacks.
USING LATTICE TO DYNAMICALLY PREVENT INFORMATION LEAKAGE FOR WEB SERVICESijsptm
This document summarizes a research paper that proposes a new information flow control model called WSIFC (Web Service Information Flow Control) to dynamically prevent information leakage for web services. WSIFC is based on a lattice model and uses security levels and tags to monitor and control flows of sensitive information during web service execution. It aims to reduce the runtime overhead of previous information flow control models for web services while still preventing information leakage. The key concepts of WSIFC including sensitive variables, screens, files, security levels, tags, and rules for controlling information flows are defined and explained.
This document provides an overview and introduction to cryptography and network security. It outlines key concepts like confidentiality, integrity, and availability. It also describes standards organizations, different types of security attacks and services, and security mechanisms. Models for network security and access are presented, which involve selecting appropriate identification and access control functions.
This lecture discusses HTTPS, SSL, and TLS. It explains that HTTPS establishes an encrypted link between a web browser and server using SSL/TLS protocols. SSL/TLS uses public key cryptography for authentication and symmetric encryption for secure data transfer. The lecture covers the SSL handshake process, different types of SSL certificates, and validation levels. It also describes how TLS evolved from SSL and its functions of encryption, authentication, and integrity.
EMAP Expedite Message Authentication Protocol for Vehicular Ad Hoc NetworksKaashivInfoTech Company
The document proposes an Expedite Message Authentication Protocol (EMAP) for vehicular ad hoc networks that replaces the time-consuming process of checking certificate revocation lists with a more efficient revocation checking process using keyed hash message authentication codes. EMAP also uses a novel probabilistic key distribution method that allows non-revoked vehicles to securely share and update a secret key. Analysis shows that EMAP can significantly reduce message loss compared to conventional authentication methods using certificate revocation lists while providing security.
This document discusses basic terms related to information security and cryptography. It defines the three pillars of information security as confidentiality, integrity, and availability. Confidentiality means only authorized individuals can access information. Integrity means data cannot be altered without authorization. Availability means information systems are functioning and information is accessible when needed. The document also defines basic cryptography terms like encryption, decryption, cryptographic keys, message digests, digital signatures, public key infrastructure, and digital identity certificates. It explains how these concepts work to provide security for information.
Efficient authentication for mobile and pervasive computing Shakas Technologies
The document proposes two novel techniques for authenticating short encrypted messages that meet the requirements of mobile and pervasive applications. The techniques are more efficient than existing message authentication codes by utilizing the security provided by the underlying encryption algorithm, rather than using standalone authentication primitives. Specifically, one technique appends a short random string to the encrypted message for authentication purposes, while the second improves on this by leveraging properties of block cipher-based encryption algorithms.
LOCAWARD A SECURITY AND PRIVACY AWARE LOCATION-BASED REWARDING SYSTEMShakas Technologies
The document proposes LocaWard, a location-based rewarding system that addresses security and privacy issues with existing systems. In LocaWard, mobile users collect tokens from merchants by visiting locations and can redeem tokens at other participating merchants for rewards. The system uses a protocol to distribute tokens securely while protecting users' private information like identities and locations. An implementation of LocaWard showed it efficiently handles computations, communications, energy use, and storage.
This document proposes a cooperative caching scheme to improve data access performance in disruption tolerant networks. The scheme caches data at network central locations that can be easily accessed by other nodes. An efficient selection metric is used to choose appropriate central locations, and caching nodes are coordinated to optimize accessibility and overhead. Simulation results show the approach significantly reduces data access delay compared to existing schemes, especially when the average inter-contact time between nodes is long.
Oruta privacy preserving public auditing for shared data in the cloud1Shakas Technologies
This document proposes a mechanism called Oruta that allows a third party auditor to verify the integrity of shared data stored in the cloud while preserving the privacy of the identities of users. Oruta uses ring signatures to compute verification information for shared data blocks in a way that hides the identity of the signer from the auditor. It allows the auditor to detect any corrupted blocks without retrieving the entire file. This protects user privacy during public audits of shared data stored in the cloud.
This document provides an overview of ZeroMQ, an open-source messaging library that provides sockets for various messaging patterns like request-reply, publish-subscribe, and push-pull. It discusses how ZeroMQ implements these patterns without a centralized broker through intelligent message batching and transport. Examples are given of how ZeroMQ is used in production systems and how it compares to brokered messaging systems. The document concludes with discussing other open-source messaging projects.
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09666155510, 09849539085 or mail us - ieeefinalsemprojects@gmail.com-Visit Our Website: www.finalyearprojects.org
To Get any Project for CSE, IT ECE, EEE Contact Me @ 09666155510, 09849539085 or mail us - ieeefinalsemprojects@gmail.com-Visit Our Website: www.finalyearprojects.org
Augmenting Publish/Subscribe System by Identity Based Encryption (IBE) Techni...IJCERT JOURNAL
Security is one of the extensive and complicated requirements that need to be provided in order to achieve few issues like confidentiality, integrity and authentication. In a content-based publish/subscribe system, authentication is difficult to achieve since there exists no strong bonding between the end parties. Similarly, Integrity and confidentiality needs arise in published events and subscription conflicts with content-based routing. The basic tool to support confidentiality, integrity is encryption. In this paper for providing security mechanism in broker-less content-based publish/subscribe system we adapt pairing-based cryptography mechanism. In this mechanism, we use Identity Based Encryption (IBE) technique to achieve the needs of publish/subscribe system. This approach helps in providing fine-grained key management, effective encryption, decryption operations and routing is carried out in the order of subscribed attributes
IRJET - Protecting Investors Privacy in Online Trading SystemIRJET Journal
This document proposes a system to protect investor privacy in online trading by using a multi-broker approach to match encrypted subscriptions and publications. It uses Key-Policy Attribute-Based Encryption to encrypt publications and Searchable Encryption to encrypt subscriptions and tags. The matching process is split across three different broker types, each performing a separate step with partial information, so that no two colluding brokers can infer sensitive subscription data. This protects against attacks from malicious subscribers, publishers or brokers attempting to discover other users' interests.
This document summarizes an approach to enhance security in a content-based publish/subscribe system using identity-based encryption. It discusses using identity-based encryption to generate public and private keys for publishers and subscribers. When a publisher encrypts an event using attribute-based encryption, the encrypted event can only be decrypted by a subscriber if their private key matches the credential embedded in the encrypted event. This allows the encrypted event to be routed to the correct subscriber without revealing the event contents. The document evaluates the performance of the proposed approach through simulation studies.
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.
Collusion Defender: Preserving Subscribers’ Privacy in Publish and Subscribe ...JAYAPRAKASH JPINFOTECH
Collusion Defender: Preserving Subscribers’ Privacy in Publish and Subscribe Systems
To buy this project in ONLINE, Contact:
Email: jpinfotechprojects@gmail.com,
Website: https://www.jpinfotech.org
Collusion Defender: Preserving Subscribers’ Privacy in Publish and Subscribe ...JAYAPRAKASH JPINFOTECH
Collusion Defender: Preserving Subscribers’ Privacy in Publish and Subscribe Systems
To buy this project in ONLINE, Contact:
Email: jpinfotechprojects@gmail.com,
Website: https://www.jpinfotech.org
Anonymity based privacy-preserving dataKamal Spring
In this paper, we propose an efficient anonymous data reporting protocol for participatory sensing, which provides strong privacy protection, data accuracy and generality. The protocol consists of two stages, namely slot reservation and message submission. In the slot reservation stage, a group of N participants cooperate to assign each member a message slot in a vector which is essentially a message submission schedule, in such a manner that each participant’s slot is oblivious to other members and the application server. In the message submission stage, each participant transmits an encoded data to the application server based on the slot information known only to herself, in such a way that the application server cannot link a data to a specific participant. With such a data reporting protocol, the link between the data and the participants is broken, and as a result, participant’s privacy is protected. We conduct theoretical analysis of the correctness and anonymity of our protocol, as well as experiments to demonstrate the efficiency in small-scale applications with periodic data sampling
Access Policy Management For OSN Using Network RelationshipsIJMTST Journal
In the online social networks (OSN) users and resources are interconnected via various types of
relationships. The relationships are one-to-one, one-to-many, many-to-one, and many-to-many like that. Now
a day’s online social networks plays crucial role to monitor and to control the access of the resources. In the
OSN, online provider should be enabled to specify which access permission can be granted in terms of
existing relationships. In this work we used user-to-user relationship based access control model. Access
control policies decide which permissions can be granted to the requested users based on their requests and
we are using two path checking algorithms namely DFS and BFS to determine the path existence between
users as well as the requested user is authenticated user or not.
This document summarizes research on improving the security and performance of distributed data aggregation systems. It discusses how existing systems like DDAS that rely on Blobseer for data storage lack sufficient security. The document proposes using Kerberos authentication to securely authenticate authorized clients and allow access to distributed databases. It also describes using adaptive Huffman coding for compressing aggregated data to reduce computation costs and speed up retrieval. The research aims to integrate these methods into DDAS to provide secure and fast retrieval of aggregated data stored in distributed systems.
Authentication and Authorization ModelsCSCJournals
The document discusses authentication and authorization models. It proposes a new model that combines PKI and Kerberos to enable authentication between trust domains. The model works as follows:
1) A user in Domain 1 sends a request to the Authentication Server, signed with the user's certificate, requesting a session with the Ticket Granting Server.
2) If authenticated, the Authentication Server issues a ticket to the user.
3) The user then sends a request to the application server in Domain 2, along with the ticket.
This allows mutual authentication between users in different domains that utilize different authentication technologies, by leveraging the strengths of both PKI and Kerberos. The public key infrastructure establishes trust between domains,
Investigation on Revocable Fine-grained Access Control Scheme for Multi-Autho...IJCERT JOURNAL
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Securing broker less publish subscribe systems using identity-based encryption
1. SECURING BROKERLESS PUBLISH/SUBSCRIBE SYSTEMS USING IDENTITY BASED ENCRYPTION ABSTRACT The provisioning of basic security mechanisms such as authentication and confidentiality is highly challenging in a content based publish/subscribe system. Authentication of publishers and subscribers is difficult to achieve due to the loose coupling of publishers and subscribers. Likewise, confidentiality of events and subscriptions conflicts with content-based routing. This paper presents a novel approach to provide confidentiality and authentication in a broker-less content-based publish/subscribe system. The authentication of publishers and subscribers as well as confidentiality of events is ensured, by adapting the pairing-based cryptography mechanisms, to the needs of a publish/subscribe system. Furthermore, an algorithm to cluster subscribers according to their subscriptions preserves a weak notion of subscription confidentiality. In addition to our previous work this paper contributes 1) use of searchable encryption to enable efficient routing of encrypted events, 2) multicredential routing a new event dissemination strategy to strengthen the weak subscription confidentiality, and 3) thorough analysis of different attacks on subscription confidentiality. The overall approach provides fine-grained key management and the cost for encryption, decryption, and routing is in the order of subscribed attributes. Moreover, the evaluations show that providing security is affordable w.r.t. 1) throughput of the proposed cryptographic primitives, and 2) delays incurred during the construction of the publish/subscribe overlay and the event dissemination. EXISTING SYSTEM:
In the past, most research has focused only on providing expressive and scalable pub/sub systems, but little attention has been paid for the need of security. Existing approaches toward secure pub/sub systems mostly rely on the presence of a traditional broker network. These either address security under restricted expressiveness, for example, by using only keyword matching for routing events or rely on a network of (semi-)trusted brokers. Furthermore, existing approaches use coarse-grain epoch based
2. key management and cannot provide fine-grain access control in a scalable manner. Nevertheless, security in broker-less pub/sub systems, where the subscribers are clustered according to their subscriptions, has not been discussed yet in the literature. PROPOSED SYSTEM: Proposed System presents a new approach to provide authentication and confidentiality in a broker-less pub/sub system. Our approach allow subscribers to maintain credentials according to their subscriptions. Private keys assigned to the subscribers are labeled with the credentials. A publisher associates each encrypted event with a set of credentials. We adapted identity-based encryption (IBE) mechanisms 1) to ensure that a particular subscriber can decrypt an event only if there is a match between the credentials associated with the event and the key; and 2) to allow subscribers to verify the authenticity of received events. Furthermore, we address the issue of subscription confidentiality in the presence of semantic clustering of subscribers. A weaker notion of subscription confidentiality is defined and a secure overlay maintenance protocol is designed to preserve the weak subscription confidentiality. PROBLEM STATEMENT: It include two entities in the system: publishers and subscribers. Both the entities are computationally bounded and do not trust each other. Moreover, all the peers (publishers or subscribers) participating in the pub/sub overlay network are honest and do not deviate from the designed protocol. Likewise, authorized publishers only disseminate valid events in the system. However, malicious publishers may masquerade the authorized publishers and spam the overlay network with fake and duplicate events. We do not intend to solve the digital copyright problem; therefore, authorized subscribers do not reveal the content of successfully decrypted events to other subscribers. SCOPE:
The pub/sub overlay proposed is similar to DPS system with modifications to ensure subscription confidentiality. In this paper, we, therefore, evaluate performance and scalability of the proposed pub/sub system only with respect to the security mechanisms and omit other aspects. In particular, we evaluate the performance of our system the overlay construction time and the event dissemination delays. We measure the average
3. delay experienced by each subscriber to connect to a suitable position in an attribute tree. Delay is measured from the time a subscriber sends connection request message to a random peer in the tree till the time the connection is actually established. The evaluations are performed only for a single attribute tree. It shows that the average connection time (delay) increases with the number of peers in the system because of the increase in the height of the attribute tree (each new hop increases the network delay as well as time to apply security methods). MODULE DESCRIPTION:
Number of Modules
After careful analysis the system has been identified to have the following modules:
1. Content-Based Publish/Subcriber Module.
2. Identity Based Encryption Module.
3. Key Generation for Publisher/Subscriber Module.
4. Secure Overlay Maintenance Module.
1.Content-Based Publish/Subscriber Module: The routing of events from publishers to the relevant subscribers, we use the content- based data model. We consider pub/sub in a setting where there exists no dedicated broker infrastructure. Publishers and subscribers contribute as peers to the maintenance of a self-organizing overlay structure. To authenticate publishers, we use the concept of advertisements in which a publisher announces beforehand the set of events which it intends to publish. 2.Identity Based Encryption Module:
In our approach, publishers and subscribers interact with a key server. They provide credentials to the key server and in turn receive keys which fit the expressed capabilities in the credentials. Subsequently, those keys can be used to encrypt, decrypt, and sign relevant messages in the content based pub/sub system, i.e., the credential becomes authorized by the key server. The keys assigned to publishers and subscribers, and the
4. ciphertexts, are labeled with credentials. In particular, the identity-based encryption ensures that a particular key can decrypt a particular ciphertext only if there is a match between the credentials of the ciphertext and the key. Publishers and subscribers maintain separate private keys for each authorized credential. 3. Key Generation For Publisher/Subscriber Module: Publisher keys: Before starting to publish events, a publisher contacts the key server along with the credentials for each attribute in its advertisement. If the publisher is allowed to publish events according to its credentials, the key server will generate separate private keys for each credential. The public key of a publisher p for credential is generated. Subscriber keys: Similarly, to receive events matching its subscription, a subscriber should contact the key server and receive the private keys for the credentials associated with each attribute A. 4.Secure Overlay Maintenance Module: The secure overlay maintenance protocol is based on the idea that in the tree, subscribers are always connected according to the containment relationship between their credential. A new subscriber s generates a random key SW and encrypts it with the public keys for all credentials that cover its own credential, for example, a subscriber with credential will generate ciphertexts by applying the public keys. The generated cipher texts are added to a connection request (CR) and the request is forwarded to a random peer in the tree. A connection is established if the peer can decrypt any of the cipher text using its private keys.
5. SOFTWARE REQUIREMENTS: Operating System : Windows Technology : Java and J2EE Web Technologies : Html, JavaScript, CSS IDE : My Eclipse Web Server : Tomcat Tool kit : Android Phone Database : My SQL Java Version : J2SDK1.5 HARDWARE REQUIREMENTS: Hardware : Pentium Speed : 1.1 GHz RAM : 1GB Hard Disk : 20 GB Floppy Drive : 1.44 MB Key Board : Standard Windows Keyboard Mouse : Two or Three Button Mouse Monitor : SVGA