In the paper we address the trustworthiness of computational engineering distributed systems based on semantic web services. We present a security model with three components: web service messaging, monitoring and replication. Web service messaging has well standardized scenarios that we use as a foundation of our work oriented to trust monitoring and replication control. The model incorporate ...

Grid middleware provides a way to integrate computational and storage resouces for supporting large-scale applications that span across multiple domains. Implicitly, Grid middlware eliminates the interoperability obstacle between different resources. However, with the emerging of a bunch of Grid middlewares, to provide interoperability between Gridmiddlewares themselves is an important challeng...

Single sign-on (SSO) is an emerging and more secure authentication mechanism that enables an authorized user with a single username/password to be authenticated by many service providers in a distributed network system. The existing technique used SSO scheme and it has achieved security by applying wellorganized security parameters and its improved scheme introduced Verifiable Encryption of Sig...

Web services enable application integration and data sharing in a platform neutral, language independent environment for both business and science. This increases the degree of exposure of critical resources which poses new challenges to securing data and service. The existing technologies such as VPN, firewall, NAT and SSL are examples of either intra-corporate domain or point-to-point solutio...

Web services development is a key theme in utilisation of the commercial exploitation of the semantic web. Paramount to the development and offering of such services is the issue of security features and the way these are applied in instituting trust amongst participants and recipients of the service. Implementing such security features is a major challenge to developers as they need to balance...

Web services are expected to play significant role for message communications over internet applications. Most of the future work is web security. Online shopping and web services are increasing at rapid rate. In this paper we presented the fundamental concepts related to Network security, web security threats. QoS web service security intrusion detection is important concern in network communi...

Global Service Oriented Architecture (Global SOA) is about the entire Web being a reusable, shareable, public SOA. This work (in progress) presents a detailed analysis of the security requirements for Global SOA. The main problem in seamless ubiquitous integration of distributed network of web services into one Global Service oriented Architecture is that of security. Our strategy is to work on...

Service Computing has recently gained significant momentum to enable the IT services and computing technology to perform business services more efficiently and effectively. Presently the service computing concentrates on inventing and establishing business models which leads to better QoS driven targeting services. So replacing existing business model by QoS driven business model would be the f...

The focus of this paper is developing ontologies that can be used to annotate web services represented by DAML-S. We propose several security-related ontologies that are designed to represent security standards such as XML Signatures in terms of their characteristics like credentials, mechanisms supported, notations used, etc. These ontologies are used to describe security properties of web ser...