WEB SERVICE BASED RELIABLE - SHELTERED MEDI HELPERcscpconf
The veracity and secrecy of medical information which is transacted over the Internet
is vulnerable to attack. But the transaction of such details is mandatory in order to avail the
luxury of medical services anywhere, anytime. Especially in a web service enabled system for
hospital management, it becomes necessary to address these security issues. It is mandatory that
the services guarantee message delivery to software applications, with a chosen level of quality
of service (QoS). This paper presents a VDM++ based specification for modelling a security
framework for web services with non repudiation to ensure that a party in a dispute cannot
repudiate, or refute the validity of a statement or contract and it is ensured that the transaction
happens in a reliable manner. This model presents the procedure and technical options to have a
secure communication over Internet with web services. Based on the model the Medi - Helper is
developed to use the technologies of WS-Security, WS-Reliability and WS-Policy, WSRN in
order to create encrypted messages so that the Patient’s medical records are not tampered with
when relayed over Internet, and are sent in a reliable manner. In addition to authentication,
integrity, confidentiality, as proposed in this paper security framework for healthcare based web
services is equipped with non repudiation which is not inclusive in many existing frameworks.
Covid19 ContactTracing - Privacy Preserving Proximity ProtocolsGokul Alex
Presentation Session by Gokul Alex for Tamil Nadu Science Foundation on the Collection of Cryptographic Techniques for COVID-19 Contact Tracing in the framework of Privacy Preserving Proximity Protocols. This is a research report compiled in collaboration with EPIC Knowledge Society, RedTeam Hacker Academy, Beyond Identity, Semiot Protocols, Cyanaura Maps.
Anonymous Communication for Providing More Privacy and Securityijceronline
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
A Chord based Service Discovery Approach for Peer- to- Peer NetworksIJMER
The limitations of client- server systems become evident in the large scale distributed
environments. Peer to peer (P2P networks can be used for improving communication process, optimizing
resources discovery/localization, facilitating distributed information exchange. P2P applications need to
discover and locate efficiently the node that provides the requested and targeted service. This paper
proposes an approach called Chord4S, a Chord-based decentralized service discovery approach that
supports service description distribution and discovery in a P2P manner. The main aim of designing
Chord4S approach is to largely improve the availability of service descriptions in volatile environments
by distributing descriptions of functionally equivalent services to different successor nodes. Two main
features of Chord4S approach are to support service discovery with wildcard(s) and QoS awareness.
Furthermore, Chord4S approach extends Chord’s original routing protocol to support the discovery of
multiple functionally equivalent services at different successor nodes with one query, which is necessary
for negotiation of a Service Level Agreement and selection of optimal service providers
CREDIT BASED METHODOLOGY TO DETECT AND DISCRIMINATE DDOS ATTACK FROM FLASH CR...IJNSA Journal
The latest trend in the field of computing is the migration of organizations and offloading the tasks to
cloud. The security concerns hinder the widespread acceptance of cloud. Of various, the DDoS in cloud is
found to be the most dangerous. Various approaches are there to defend DDoS in cloud, but have lots of
pitfalls. This paper proposes a new reputation-based framework for mitigating the DDoS in cloud by
classifying the users into three categories as well-reputed, reputed and ill-reputed based on credits. The
fact that attack is fired by malicious programs installed by the attackers in the compromised systems and
they exhibit similar characteristics used for discriminating the DDoS traffic from flash crowds. Credits of
clients who show signs of similarity are decremented. This reduces the computational and storage
overhead. This proposed method is expected to take the edge off DDoS in a cloud environment and ensures
full security to cloud resources. CloudSim simulation results also proved that the deployment of this
approach improved the resource utilization with reduced cost.
Secure Group Communication in Grid EnvironmentCSCJournals
A Grid is a collection of resources that are available for an application to perform tasks. Grid resources are heterogeneous, geographically distributed and belong to different administrative domains. Hence security is a major concern in a grid system. Authentication, message integrity and confidentiality are the major concerns in grid security. Secure group communication is brought about by effective key distribution to authenticated users of the channels serviced by resources. The proposed approach facilitates reduced computation and efficient group communication. It also ensures efficient rekeying for each communication session. The security protocol has been implemented and tested using Globus middleware.
WEB SERVICE BASED RELIABLE - SHELTERED MEDI HELPERcscpconf
The veracity and secrecy of medical information which is transacted over the Internet
is vulnerable to attack. But the transaction of such details is mandatory in order to avail the
luxury of medical services anywhere, anytime. Especially in a web service enabled system for
hospital management, it becomes necessary to address these security issues. It is mandatory that
the services guarantee message delivery to software applications, with a chosen level of quality
of service (QoS). This paper presents a VDM++ based specification for modelling a security
framework for web services with non repudiation to ensure that a party in a dispute cannot
repudiate, or refute the validity of a statement or contract and it is ensured that the transaction
happens in a reliable manner. This model presents the procedure and technical options to have a
secure communication over Internet with web services. Based on the model the Medi - Helper is
developed to use the technologies of WS-Security, WS-Reliability and WS-Policy, WSRN in
order to create encrypted messages so that the Patient’s medical records are not tampered with
when relayed over Internet, and are sent in a reliable manner. In addition to authentication,
integrity, confidentiality, as proposed in this paper security framework for healthcare based web
services is equipped with non repudiation which is not inclusive in many existing frameworks.
Covid19 ContactTracing - Privacy Preserving Proximity ProtocolsGokul Alex
Presentation Session by Gokul Alex for Tamil Nadu Science Foundation on the Collection of Cryptographic Techniques for COVID-19 Contact Tracing in the framework of Privacy Preserving Proximity Protocols. This is a research report compiled in collaboration with EPIC Knowledge Society, RedTeam Hacker Academy, Beyond Identity, Semiot Protocols, Cyanaura Maps.
Anonymous Communication for Providing More Privacy and Securityijceronline
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
A Chord based Service Discovery Approach for Peer- to- Peer NetworksIJMER
The limitations of client- server systems become evident in the large scale distributed
environments. Peer to peer (P2P networks can be used for improving communication process, optimizing
resources discovery/localization, facilitating distributed information exchange. P2P applications need to
discover and locate efficiently the node that provides the requested and targeted service. This paper
proposes an approach called Chord4S, a Chord-based decentralized service discovery approach that
supports service description distribution and discovery in a P2P manner. The main aim of designing
Chord4S approach is to largely improve the availability of service descriptions in volatile environments
by distributing descriptions of functionally equivalent services to different successor nodes. Two main
features of Chord4S approach are to support service discovery with wildcard(s) and QoS awareness.
Furthermore, Chord4S approach extends Chord’s original routing protocol to support the discovery of
multiple functionally equivalent services at different successor nodes with one query, which is necessary
for negotiation of a Service Level Agreement and selection of optimal service providers
CREDIT BASED METHODOLOGY TO DETECT AND DISCRIMINATE DDOS ATTACK FROM FLASH CR...IJNSA Journal
The latest trend in the field of computing is the migration of organizations and offloading the tasks to
cloud. The security concerns hinder the widespread acceptance of cloud. Of various, the DDoS in cloud is
found to be the most dangerous. Various approaches are there to defend DDoS in cloud, but have lots of
pitfalls. This paper proposes a new reputation-based framework for mitigating the DDoS in cloud by
classifying the users into three categories as well-reputed, reputed and ill-reputed based on credits. The
fact that attack is fired by malicious programs installed by the attackers in the compromised systems and
they exhibit similar characteristics used for discriminating the DDoS traffic from flash crowds. Credits of
clients who show signs of similarity are decremented. This reduces the computational and storage
overhead. This proposed method is expected to take the edge off DDoS in a cloud environment and ensures
full security to cloud resources. CloudSim simulation results also proved that the deployment of this
approach improved the resource utilization with reduced cost.
Secure Group Communication in Grid EnvironmentCSCJournals
A Grid is a collection of resources that are available for an application to perform tasks. Grid resources are heterogeneous, geographically distributed and belong to different administrative domains. Hence security is a major concern in a grid system. Authentication, message integrity and confidentiality are the major concerns in grid security. Secure group communication is brought about by effective key distribution to authenticated users of the channels serviced by resources. The proposed approach facilitates reduced computation and efficient group communication. It also ensures efficient rekeying for each communication session. The security protocol has been implemented and tested using Globus middleware.
A Web service (WS*-) is a software system designed to support interoperable machine-to-machine
interaction over a network (WSDL) i.e between a client and a service. It has an interface described in a
machine-processable format . Other systems interact with the Web service in a manner prescribed by its
description using SOAP messages which is a protocol define by world wide web consortium, typically
conveyed using HTTP with an XML serialization in conjunction with other Web-related standards. Windows
Communication Foundation (WCF) is a framework for building service-oriented applications. Using WCF,
you can send data as asynchronous messages from one service endpoint to another. A service endpoint can
be part of a continuously available service hosted by IIS, or it can be a service hosted in an application like
an .exe file. An endpoint can be a client of a service that requests data from a service endpoint. The messages
can be as simple as a single character or word sent as XML document, or as complex as a stream of binary
data. In this paper ,We gave the Adavantages that are Available by using wcf ,instead of webservices and
other.
An Enhanced P2P Architecture for Dispersed Service DiscoveryIJRES Journal
Service discovery is a critical issue in Service Oriented Computing (SOC).Service discovery protocols used to detect and discover services offered by the nodes in the network. It must be scalable, reliable and robust service discovery mechanism. In traditional discovery mechanism uses decentralized service discovery approach named as chord4s.This method suffer from some problems such as scalability, node failure and efficient query routing. This paper addresses additional functionalities of chord4s protocol. In this paper data availability in chord4s protocol is improved by distributing functionally equivalent services to different successor nodes. If one node fails service consumer gets equivalent services from the other successor nodes. In this paper efficient query routing can be improved by getting multiple services with single query. Quality of service also improved by qos aware service discovery methods. Semantic information of services is integrated in order to increase flexibility, accuracy of service discovery.
A MALICIOUS USERS DETECTING MODEL BASED ON FEEDBACK CORRELATIONSIJCNC
The trust and reputation models were introduced to restrain the impacts caused by rational but selfish
peers in P2P streaming systems. However, these models face with two major challenges from dishonest
feedback and strategic altering behaviors. To answer these challenges, we present a global trust model
based on network community, evaluation correlations, and punishment mechanism. We also propose a
two-layered overlay to provide the function of peers’ behaviors collection and malicious detection.
Furthermore, we analysis several security threats in P2P streaming systems, and discuss how to defend
with them by our trust mechanism. The simulation results show that our trust framework can successfully
filter out dishonest feedbacks by using correlation coefficients. It can effectively defend against the
security threats with good load balance as well.
CISSPills are short-lasting presentations covering topics to study in order to prepare CISSP exam. CISSPills is a digest of my notes and doesn't want to replace a studybook, it wants to be only just another companion for self-paced students.
Every issue covers different topics of CISSP's CCBK and the goal is addressing all the 10 domains which compose CISSP.
IN THIS ISSUE:
Domain 1: Access Control
- Federated Identity
- Markup Languages
- AAA Protocols
Network Security: Authentication Applications, Electronic Mail Security, IP Security, Web
Security, System Security: Intruders, Malicious Software, Firewalls
Secure Multi-Party Negotiation: An Analysis for Electronic Payments in Mobile...IDES Editor
This paper is an attempt to base on auctions which
presents a frame work for the secure multi-party decision
protocols. In addition to the implementations which are very
light weighted, the main focus is on synchronizing security
features for avoiding agreements manipulations and reducing
the user traffic. Through this paper one can understand that
this different auction protocols on top of the frame work can
be collaborated using mobile devices. This paper present the
negotiation between auctioneer and the proffered and this
negotiation shows that multiparty security is far better than
the existing system.
A SYNCHRONIZED DISTRIBUTED DENIAL OF SERVICE PREVENTION SYSTEMcscpconf
DDoS attack is a distributed source but coordinated Internet security threat that attackers either degrade or disrupt a shared service to legitimate users. It uses various methods to inflict damages on limited resources. It can be broadly classified as: flood and semantic (logic) attacks. DDoS attacking mechanisms vary from time to time and simple but powerful attacking tools are freely available on the Internet. There have been many trials on defending victims from DDoS attacks. However, many of the previous attack prevention systems lack effective handling of various attacking mechanisms and protecting legitimate users from collateral damages during detection and protection. In this paper, we proposed a distributed but synchronized DDoS defense architecture by using multiple agents, which are autonomous systems that perform their assigned mission in other networks on behalf of the victim. The major assignments of defense agents are IP spoofing verification, high traffic rate limitation, anomaly packet detection, and attack source detection.These tasks are distributed through four agents that are deployed on different domain networks. The proposed solution was tested through simulation with sample attack scenarios on the model Internet topology. The experiments showed encouraging results. A more comprehensive attack protection and legitimate users prevention from collateral damages makes this system more effective than other previous works.
Trust Based Content Distribution for Peer-ToPeer Overlay NetworksIJNSA Journal
In peer-to-peer content distribution the lack of a central authority makes authentication difficult. Without authentication, adversary nodes can spoof identity and falsify messages in the overlay. This enables malicious nodes to launch man-in-the-middle or denial-of-service attacks. In this paper, we present a trust based content distribution for peer-to-peer overlay networks, which is built on the trust management scheme. The main concept is, before sending or accepting the traffic, the trust of the peer must be validated. Based on the success of data delivery and searching time, we calculate the trust index of a node. Then the aggregated trust index of the peers whose value is below the threshold value is considered as distrusted and the corresponding traffic is blocked. By simulation results we show that our proposed scheme achieves increased success ratio with reduced delay and drop.
In this research, we have focused on the most challenging issue that Web Services face, i.e. how to secure their information. Web Services security could be guaranteed by employing security standards, which is the main focus of this search. Every suggested model related to security design should put in the account the securities' objectives; integrity, confidentiality, non- repudiation, authentication, and authorization. The proposed model describes SOAP messages and the way to secure their contents. Due to the reason that SOAP message is the core of the exchanging information in Web Services, this research has developed a security model needed to ensure e-business security. The essence of our model depends on XML encryption and XML signature to encrypt and sign SOAP message. The proposed model looks forward to achieve a high speed of transaction and a strong level of security without jeopardizing the performance of transmission information.
A New Method to Stop Spam Emails in Sender SideIDES Editor
Nowadays one of the major problems by Internet
users, who they have email addresses, are undesirable emails
(also known as spam). Spam emails generally with profitable
reasons are sent to the large number of email addresses. A
spammer, who sends spam, tries to run an advertisement for
companies or products. The problem with these spams is that
they waste the network resources. In this paper a method is
presented to stop spam emails in the sender side. In this
method, the sender mail server checks any email based on
some pre-defined criteria. If the sender mail server determines
that the email is not spam, it will deliver that mail to associated
mail server. Otherwise, the email is blocked in the sender
mail server. In this method the waste of network resources
such as time, allocated memory, and bandwidth are preserved.
A Web service (WS*-) is a software system designed to support interoperable machine-to-machine
interaction over a network (WSDL) i.e between a client and a service. It has an interface described in a
machine-processable format . Other systems interact with the Web service in a manner prescribed by its
description using SOAP messages which is a protocol define by world wide web consortium, typically
conveyed using HTTP with an XML serialization in conjunction with other Web-related standards. Windows
Communication Foundation (WCF) is a framework for building service-oriented applications. Using WCF,
you can send data as asynchronous messages from one service endpoint to another. A service endpoint can
be part of a continuously available service hosted by IIS, or it can be a service hosted in an application like
an .exe file. An endpoint can be a client of a service that requests data from a service endpoint. The messages
can be as simple as a single character or word sent as XML document, or as complex as a stream of binary
data. In this paper ,We gave the Adavantages that are Available by using wcf ,instead of webservices and
other.
An Enhanced P2P Architecture for Dispersed Service DiscoveryIJRES Journal
Service discovery is a critical issue in Service Oriented Computing (SOC).Service discovery protocols used to detect and discover services offered by the nodes in the network. It must be scalable, reliable and robust service discovery mechanism. In traditional discovery mechanism uses decentralized service discovery approach named as chord4s.This method suffer from some problems such as scalability, node failure and efficient query routing. This paper addresses additional functionalities of chord4s protocol. In this paper data availability in chord4s protocol is improved by distributing functionally equivalent services to different successor nodes. If one node fails service consumer gets equivalent services from the other successor nodes. In this paper efficient query routing can be improved by getting multiple services with single query. Quality of service also improved by qos aware service discovery methods. Semantic information of services is integrated in order to increase flexibility, accuracy of service discovery.
A MALICIOUS USERS DETECTING MODEL BASED ON FEEDBACK CORRELATIONSIJCNC
The trust and reputation models were introduced to restrain the impacts caused by rational but selfish
peers in P2P streaming systems. However, these models face with two major challenges from dishonest
feedback and strategic altering behaviors. To answer these challenges, we present a global trust model
based on network community, evaluation correlations, and punishment mechanism. We also propose a
two-layered overlay to provide the function of peers’ behaviors collection and malicious detection.
Furthermore, we analysis several security threats in P2P streaming systems, and discuss how to defend
with them by our trust mechanism. The simulation results show that our trust framework can successfully
filter out dishonest feedbacks by using correlation coefficients. It can effectively defend against the
security threats with good load balance as well.
CISSPills are short-lasting presentations covering topics to study in order to prepare CISSP exam. CISSPills is a digest of my notes and doesn't want to replace a studybook, it wants to be only just another companion for self-paced students.
Every issue covers different topics of CISSP's CCBK and the goal is addressing all the 10 domains which compose CISSP.
IN THIS ISSUE:
Domain 1: Access Control
- Federated Identity
- Markup Languages
- AAA Protocols
Network Security: Authentication Applications, Electronic Mail Security, IP Security, Web
Security, System Security: Intruders, Malicious Software, Firewalls
Secure Multi-Party Negotiation: An Analysis for Electronic Payments in Mobile...IDES Editor
This paper is an attempt to base on auctions which
presents a frame work for the secure multi-party decision
protocols. In addition to the implementations which are very
light weighted, the main focus is on synchronizing security
features for avoiding agreements manipulations and reducing
the user traffic. Through this paper one can understand that
this different auction protocols on top of the frame work can
be collaborated using mobile devices. This paper present the
negotiation between auctioneer and the proffered and this
negotiation shows that multiparty security is far better than
the existing system.
A SYNCHRONIZED DISTRIBUTED DENIAL OF SERVICE PREVENTION SYSTEMcscpconf
DDoS attack is a distributed source but coordinated Internet security threat that attackers either degrade or disrupt a shared service to legitimate users. It uses various methods to inflict damages on limited resources. It can be broadly classified as: flood and semantic (logic) attacks. DDoS attacking mechanisms vary from time to time and simple but powerful attacking tools are freely available on the Internet. There have been many trials on defending victims from DDoS attacks. However, many of the previous attack prevention systems lack effective handling of various attacking mechanisms and protecting legitimate users from collateral damages during detection and protection. In this paper, we proposed a distributed but synchronized DDoS defense architecture by using multiple agents, which are autonomous systems that perform their assigned mission in other networks on behalf of the victim. The major assignments of defense agents are IP spoofing verification, high traffic rate limitation, anomaly packet detection, and attack source detection.These tasks are distributed through four agents that are deployed on different domain networks. The proposed solution was tested through simulation with sample attack scenarios on the model Internet topology. The experiments showed encouraging results. A more comprehensive attack protection and legitimate users prevention from collateral damages makes this system more effective than other previous works.
Trust Based Content Distribution for Peer-ToPeer Overlay NetworksIJNSA Journal
In peer-to-peer content distribution the lack of a central authority makes authentication difficult. Without authentication, adversary nodes can spoof identity and falsify messages in the overlay. This enables malicious nodes to launch man-in-the-middle or denial-of-service attacks. In this paper, we present a trust based content distribution for peer-to-peer overlay networks, which is built on the trust management scheme. The main concept is, before sending or accepting the traffic, the trust of the peer must be validated. Based on the success of data delivery and searching time, we calculate the trust index of a node. Then the aggregated trust index of the peers whose value is below the threshold value is considered as distrusted and the corresponding traffic is blocked. By simulation results we show that our proposed scheme achieves increased success ratio with reduced delay and drop.
In this research, we have focused on the most challenging issue that Web Services face, i.e. how to secure their information. Web Services security could be guaranteed by employing security standards, which is the main focus of this search. Every suggested model related to security design should put in the account the securities' objectives; integrity, confidentiality, non- repudiation, authentication, and authorization. The proposed model describes SOAP messages and the way to secure their contents. Due to the reason that SOAP message is the core of the exchanging information in Web Services, this research has developed a security model needed to ensure e-business security. The essence of our model depends on XML encryption and XML signature to encrypt and sign SOAP message. The proposed model looks forward to achieve a high speed of transaction and a strong level of security without jeopardizing the performance of transmission information.
A New Method to Stop Spam Emails in Sender SideIDES Editor
Nowadays one of the major problems by Internet
users, who they have email addresses, are undesirable emails
(also known as spam). Spam emails generally with profitable
reasons are sent to the large number of email addresses. A
spammer, who sends spam, tries to run an advertisement for
companies or products. The problem with these spams is that
they waste the network resources. In this paper a method is
presented to stop spam emails in the sender side. In this
method, the sender mail server checks any email based on
some pre-defined criteria. If the sender mail server determines
that the email is not spam, it will deliver that mail to associated
mail server. Otherwise, the email is blocked in the sender
mail server. In this method the waste of network resources
such as time, allocated memory, and bandwidth are preserved.
Patient Engagement Power Team Comments – Leslie Kelly Hall, ChairBrian Ahier
The Consumer/Patient Engagement Power Team will assess Standards and Certification Criteria NPRM and provide recommendations for strengthening consumer/patient engagement components. The Power Team will prioritize recommendations to enable patients to participate as partners in their care.
The PCAST Report Workgroup has been created under the auspices of the HIT Policy and HIT Standards Committees to synthesize and analyze the public comments and input into the PCAST Report relative to implications on current and future ONC work.
Open source’s role in CONNECTing the public and private sector healthcare com...Brian Ahier
David Riley is the CONNECT initiative lead for the Federal Health Architecture (FHA) Program in the Office of the National Coordinator for Health Information Technology (ONCHIT). This is his presentation from OSCON.
What Lies Ahead for ONC: Meaningful Use and BeyondBrian Ahier
Farzad Mostashari, MD, ScM serves as Deputy National Coordinator for Programs and Policy within the Office of the National Coordinator for Health Information Technology at the U.S. Department of Health and Human Services.
Remarks to Public Forum on National Health IT PolicyBrian Ahier
On February 4, 2010 there was a public forum on the rollout of national HIT policy under HITECH, including "meaningful use," EHR certification, and HIE. Aneesh Chopra, at the time serving as Chief Technology Office (CTO) of the United States made some remarks.
Health Identity Management & Role-Based Access Control in a Federated NHIN - ...Richard Moore
Healthcare Identity Management and Role-based Access in a Federated NHIN - Session 170
Tuesday, April 7, 2:15 PM - 3:15 PM
Convention Center, Room:N 427 c
Richard Moore
John Frazer
Description:
The National Health Information Network requires secure connection of health organizations within and across state borders. Phase Three of the e-Authentication Pilot Project investigates open source and virtual server solutions to address this issue. Learn about the successes and challenges to this pilot project.
Security+ Guide to Network Security Fundamentals, 3rd Edition, by Mark Ciampa
Knowledge and skills required for Network Administrators and Information Technology professionals to be aware of security vulnerabilities, to implement security measures, to analyze an existing network environment in consideration of known security threats or risks, to defend against attacks or viruses, and to ensure data privacy and integrity. Terminology and procedures for implementation and configuration of security, including access control, authorization, encryption, packet filters, firewalls, and Virtual Private Networks (VPNs).
CNIT 120: Network Security
http://samsclass.info/120/120_S09.shtml#lecture
Policy: http://samsclass.info/policy_use.htm
Many thanks to Sam Bowne for allowing to publish these presentations.
• For a full set of 650+ questions. Go to
https://skillcertpro.com/product/comptia-security-sy0-601-exam-questions/
• SkillCertPro offers detailed explanations to each question which helps to understand the concepts better.
• It is recommended to score above 85% in SkillCertPro exams before attempting a real exam.
• SkillCertPro updates exam questions every 2 weeks.
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International Journal on Web Service Computing (IJWSC)ijwscjournal
Web Service is a reusable component which has set of related functionalities that service requesters can
programmatically access from the service provider and manipulate through the Web. One of the main
security issue is to secure web services from the malicious requesters. Since trust plays an important role in
many kinds of human communication, it allows people to work under insecurity and with the risk of
negative cost, many researchers have proposed different trust based web services access control model to
prevent malicious requesters. In this literature review, various existing trust based web services access
control model have been studied also investigated how the concept of a trust level is used in the access
control policy of a service provider to allow service requester to access the web services
A Literature Review on Trust Management in Web Services Access Controlijwscjournal
Web Service is a reusable component which has set of related functionalities that service requesters can
programmatically access from the service provider and manipulate through the Web. One of the main
security issue is to secure web services from the malicious requesters. Since trust plays an important role in
many kinds of human communication, it allows people to work under insecurity and with the risk of
negative cost, many researchers have proposed different trust based web services access control model to
prevent malicious requesters. In this literature review, various existing trust based web services access
control model have been studied also investigated how the concept of a trust level is used in the access
control policy of a service provider to allow service requester to access the web services.
A Literature Review on Trust Management in Web Services Access Controlijwscjournal
Web Service is a reusable component which has set of related functionalities that service requesters can programmatically access from the service provider and manipulate through the Web. One of the main security issue is to secure web services from the malicious requesters. Since trust plays an important role in many kinds of human communication, it allows people to work under insecurity and with the risk of negative cost, many researchers have proposed different trust based web services access control model to prevent malicious requesters. In this literature review, various existing trust based web services access control model have been studied also investigated how the concept of a trust level is used in the access control policy of a service provider to allow service requester to access the web services.
Web applications can provide convenience and efficiency, however there are also a number of new security threats, which could potentially pose significant risks to an organisation's information technology infrastructure if not handled properly.
Healthcare Identity Management and Role-Based Access in a Federated NHIN - Th...Richard Moore
The Nationwide Health Information Network (NHIN) requires the secure connection of health organizations within and across state borders. The goal of Phase 4 of the e-Authentication Pilot Study is to investigate a specific solution to this issue. In 2006 HIMSS sponsored Phase 1 of the e-Authentication Pilot Study which modeled the use of the General Services Administration (GSA) electronic authentication certificates using PKI and SAML in a healthcare information exchange (HIE) environment by 6 Regional Health Information Organizations (RHIOs) located in 5 different states. Phase 2 extended the work of Phase 1 to model federated single sign-on into a distributed multi-state HIE using PKI certificates for secure identity management, open source Internet2 middleware (Shibboleth and Shibboleth tools) for the authorization architecture and OASIS Security Assertion Markup Language (SAML) for single sign-on and access control. Phase 2 concluded in the development of a healthcare specific configuration of the Shibboleth network architecture and the development of healthcare related directory objects for role-based authorization. The Phase 2 technology was successfully demonstrated in the 2008 IHE Showcase. Phase 3 of the e-Authentication Pilot Study extended the network to include NHIN connectivity as a participant in the NHIN2 project. Advancements included; Record Location Services (RLS), proprietary Electronic Health Records (EHR), Personal Health Record Service (PHR), Public Health Immunization Record Service, VMWare virtual server technology. Phase 4 extends the use of NHIN Connector for Clinical and Administrative transactions, connection to OpenVISTA, work with the Voluntary Universal Healthcare Identifier (VUHID) and the growth of the network to 18 hospitals. Liberty Alliance/Kantara Workgroup for Health Identity and Assurance continues to participate to define Health Identity Management best practices and Role-based Authentication. Presented at HIMSS2010 by Richard Moore and John Fraser
Data Stream Controller for Enterprise Cloud ApplicationIJSRD
Cloud computing is an emerging computing paradigm where computing resources are provided as services over Internet while residing in a large data center. Even though it enables us to dynamically provide servers with the ability to address a wide range of needs, this paradigm brings forth many new challenges for the data security and access control as users outsource their sensitive data to clouds, which are beyond the same trusted domain as data owners. The occupier need not be concerned with how the Paas system achieves expansion under high load.MAC systems differ as security policy is defined for the entire system, typically by administrators. Information flow control (IFC) is a MAC approach, developed originally from military information management methodologies. IFC can be used to enforce more general policies, using appropriate labeling and checking schemes. The labels can be used to manage both confidentiality and integrity concerns, tracking “secrecy†and “quality†of data, respectively. Decentralized Information Flow Control (DIFC) is an approach to security that allows application writers to control how data flow between the pieces of application and the outside world. As applied to privacy DIFC allows un trusted software to compute with private data while trusted security code controls the release of that data. As applied to integrity DIFC allows trusted code to protect un trusted software from unexpected inputs.
The proposed Trusted Exchange Framework supports ONC’s goals of achieving nationwide interoperability:
Patient Access - Patients must be able to access their health information electronically without any special effort;
Population-level Data Exchange - Providers and payer organizations accountable for managing benefits can receive population level health information allowing them to analyze population health trends, outcomes, and costs; identify at-risk populations; and track progress on quality improvement initiatives; and
Open and Accessible APIs – The health information technology (health IT) community should have open and accessible application programming interfaces (APIs) to encourage entrepreneurial, user-focused innovation to make health information more accessible and to improve electronic health record (EHR) usability.
2015 Edition Proposed RuleModifications to the ONC Health IT Certification ...Brian Ahier
Presentation to April 7, 2015 Health IT Policy Committee:
2015 Edition Proposed RuleModifications to the ONC Health IT Certification Program and 2015 Edition Health IT Certification Criteria
FTC Spring Privacy Series: Consumer Generated and Controlled Health DataBrian Ahier
Increasingly, consumers are taking a more active role in managing and generating their own health data. For example, consumers are researching their health conditions and diagnosing themselves online. Consumers are also uploading their information into personal health records and apps that allow them to manage and analyze their data, and utilizing connected health and fitness devices that regularly collect information about them and transmit this information to other entities.
The movement of health data outside the traditional medical provider context has many potential benefits; however, it also raises potential privacy concerns. The seminar will address questions such as:
What types of websites, products, and services are consumers using to generate and control their health data, and how are consumers using them?
Who are the companies behind these websites, products, and services, what are their business models, and what does the current marketplace look like?
How can consumers benefit from these companies’ websites, products, and services?
What actions are these companies taking to protect consumers’ privacy and security?
What do consumers expect from these companies regarding privacy and security protections?
Do consumers differentiate between these companies and those that offer traditional medical products and services that are covered by HIPAA?
What restrictions, if any, do advertising networks and others impose on tracking of health data?
On February 19, 2014, the Federal Trade Commission staff hosted a seminar on Mobile Device Tracking.
The speakers discussed how retailers and other businesses have been tracking consumers’ movements throughout and around retail stores and other attractions using technologies that identify signals emitted by their mobile devices. While the technologies differ, many work by identifying and collecting the MAC address – which is unique to a particular device – broadcast when a mobile device searches for Wi-Fi networks. Companies can use these technologies to reveal information about consumers including the path taken throughout a location, length of time in one location, whether a visitor is new or returning, and the frequency of visits to a location. According to media reports, major retailers in the United States are using or have tested the technology in their stores in order to gain insights into the behavior of their customers.
In most cases, this tracking is invisible to consumers and occurs with no consumer interaction. As a result, the use of these technologies raises a number of potential privacy concerns and questions.
Big Data and VistA Evolution, Theresa A. Cullen, MD, MSBrian Ahier
Presentation to Open Source Electronic Health Record Alliance (OSEHRA) Architecture Work Group by Theresa A. Cullen, MD, MS
Chief Medical Information Officer
Director, Health Informatics
Office of Informatics and Analytics
Veterans Health Administration
Department of Veterans Affairs
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
Ethanol (CH3CH2OH), or beverage alcohol, is a two-carbon alcohol
that is rapidly distributed in the body and brain. Ethanol alters many
neurochemical systems and has rewarding and addictive properties. It
is the oldest recreational drug and likely contributes to more morbidity,
mortality, and public health costs than all illicit drugs combined. The
5th edition of the Diagnostic and Statistical Manual of Mental Disorders
(DSM-5) integrates alcohol abuse and alcohol dependence into a single
disorder called alcohol use disorder (AUD), with mild, moderate,
and severe subclassifications (American Psychiatric Association, 2013).
In the DSM-5, all types of substance abuse and dependence have been
combined into a single substance use disorder (SUD) on a continuum
from mild to severe. A diagnosis of AUD requires that at least two of
the 11 DSM-5 behaviors be present within a 12-month period (mild
AUD: 2–3 criteria; moderate AUD: 4–5 criteria; severe AUD: 6–11 criteria).
The four main behavioral effects of AUD are impaired control over
drinking, negative social consequences, risky use, and altered physiological
effects (tolerance, withdrawal). This chapter presents an overview
of the prevalence and harmful consequences of AUD in the U.S.,
the systemic nature of the disease, neurocircuitry and stages of AUD,
comorbidities, fetal alcohol spectrum disorders, genetic risk factors, and
pharmacotherapies for AUD.
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
Anti ulcer drugs and their Advance pharmacology ||
Anti-ulcer drugs are medications used to prevent and treat ulcers in the stomach and upper part of the small intestine (duodenal ulcers). These ulcers are often caused by an imbalance between stomach acid and the mucosal lining, which protects the stomach lining.
||Scope: Overview of various classes of anti-ulcer drugs, their mechanisms of action, indications, side effects, and clinical considerations.
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
Atrioventricular conduction blocks ( AV blocks ) are classified into 3 types.
This document describes the acute management of AV block.
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Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
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Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
2. What is Direct? A project to create the set ofstandardsand services that, with a policy framework, enable simple, directed, routed, scalable transport over the Internet to be used for secure and meaningful exchange between known participants in support of meaningful use 2
3. Secure Internet-based Direct Communications Direct Project specifies a simple, secure, scalable, standards-based way for participants to send encrypted health information directly to known, trusted recipients over the Internet. h.elthie@direct.ahospital.org b.wells@direct.aclinic.org Simple.Connects healthcare stakeholders through universal addressing using simple push of information. Secure. Users can easily verify messages are complete and not tampered with in travel. Scalable. Enables Internet scale with no need for central network authority. Standards-based. Built on common Internet standards for secure e-mail communication.
4. Why Direct? When current methods of health information exchange are inadequate: Communication of health information among providers and patients still mainly relies on mail or fax Slow, inconvenient, expensive Health information and history is lost or hard to find in paper charts Current forms of electronic communication may not be secure Encryption features of off-the-shelf e-mail clients not often used in healthcare communications today Physicians need to transport and share clinical content electronically in order to satisfy Stage 1 Meaningful Use requirements. Need to meet physicians where they are now Direct will be one of the communication methods in the Nationwide Health Information Network Sources: http://www.flickr.com/photos/dougww/922328173/ http://www.flickr.com/photos/greenlagirl/154148230/sizes/o/ http://www.flickr.com/photos/kenjonbro/3418425029/sizes/m/
5. Who is Direct? (as of November 2010) The Direct Project represents over 50 organizations and over 200 participants. Members participate in the Implementation Group and one or more of 6 workgroups. Implementation Group (50+ organizations, 200+ participants) Security and Trust Communications Documentation and Testing Implementation Geographies Reference Implementation Best Practices
6. What do you need to enable Direct? Direct Addresses Security & Trust Services Direct Messages Message Transport & Delivery
7. Direct Addresses Direct Addresses are used to route information Look like email addresses Used only for health information exchange b.wells@direct.aclinic.org An individual may have multiple Direct addresses Domain Endpoint Direct Address
8. Security & Trust: Certificates Each Direct Address must have at least one digital certificate associated with it in order to securely transmit and receive health information Certificate may be tied to either the specific Direct Address or the Domain that is part of that address X.509v3 digital certificate standards By using certificates to securely transmit and receive information… The Sender has a strong mathematical certainty that only the Receiver or explicitly authorized delegates can view the message The Receiver has a strong mathematical certainty that only the Sender sent the message Both Sender and Receiver have confidence that nothing happened to the message in transit (e.g., tampering, disclosure, etc.)
9. Security & Trust: Certificate Discovery Certificate discovery must occur prior to a Direct message being sent in order to fulfill the encryption functions of the S/MIME format Discovery based on existing Internet protocols Existing specifications exist for discovery via DNS Address-bound certificates must be associated with a Direct-formatted address Organization-bound certificates are stored under the Health Domain Name If DNS is not supported, an alternate method must be offered
13. Message Transport & Delivery Direct specifies Simple Mail Transport Protocol (SMTP) as its primary mechanism for delivering healthcare content from a sender to a receiver This choice supports environments that have minimal capabilities in terms of using Web Services and generating detailed metadataand allows for more advanced interoperability
14. Direct Project Compliance Compliance is defined in the Applicability Statement for Secure Health Transport Core set of requirements for using SMTP, S/MIME, and X509 certificates in an interoperable way However, it’s recognized that communities may use other standards or proprietary mechanisms internally Will generally have Direct-compliant gateways that implement the Applicability specification while harmonizing local standards/mechanisms to Direct-equivalents XDR and XDM for Direct Messaging specifies such a solution when using IHE XDR for local transport
15. SOAP, IHE and XD* Conversions While SMTP is the primary delivery method for Direct, some healthcare environments have existing SOAP-based Web Services that provide detailed metadata and have adopted a family of IHE profiles SOAP – format for exchanging structured information, based on XML for message format XDR and XDM for Direct Messaging XDR – supports a direct push model using Web Services transport XDM – supports a direct push model with SMTP as a transport option, among several XD* Conversion Enables interoperability between Direct participants who may be using SOAP+XDR, SMTP+XDM, or SMTP+MIME
20. HIE Strategy should drive the approach to implementing Direct Orchestrator Elevator Public Utility Capacity-Builder $ $ Rapid facilitation of directed exchange capabilities to support Stage 1 MU Develops and bolsters local exchange capabilities Connects local exchange activities with thin layer of statewide infrastructure Directly connects providers into centralized HIE solution Direct Approach #1: Market-based solns Direct Approach #3: Fill in the gaps Direct Approach #3: Fill in the gaps Direct Approach #2: Offer complete svcs Direct Approach #2: Offer complete svcs Individual States may adopt multiple strategies
21. User InterfacesOverview of Options Email Client S/MIME Encryption is popularly supported Downloadable Plug-in for Direct Web Portal (or Webmail) Web Portal can be set up by HISP or HIE Webmail with plugin for Direct EHR Module that enables Direct messaging Message generated and sent by EHR without intermediate steps @ EHR Individual communities are likely to include instances of all user interfaces, depending on provider preferences and choices in the local market
23. Deployment ModelsOverview of Options 20 Encryption at Client Client does encryption/decryption locally Capabilities built into the EHR Relies on HISP for routing Encryption at HISPs HISP provides encryption/decryption HISP provides routing Client interacts through EHR, Email, or Portal Direct and XDR (optional) Some HIEs use the IHE XDR profile for push workflows This deployment model enables compatibility with the Direct Project DestHISP Src Dest DestHISP SrcHISP Src Dest HISP Src Dest Individual communities likely to employ all deployment models, depending on provider preferences and local EHR choices. States need to enable HISPs regardless.
24. Deployment ModelsPros and Cons Threat Models for these deployments (including “Direct to/from XDR”) available at: http://wiki.directproject.org/Threat+Models
Editor's Notes
http://www.flickr.com/photos/dougww/922328173/
Need a way to route information to the right party. That’s where Direct addresses come in.Need a way to protect that information when you send it – Security & Trust Services.Need to be able to build a Direct Message that contains the health information you want to send.Finally, need a way to move that message.
Can also mix and match these combinations; e.g., encryption on the client side for the sender, with decryption managed by HISP for the receiver