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About 8,894 papers for “Semantic security”

Quantum Semantic Security

H. Boche, M. Cai, C. Deppe, R. Ferrara, M. Wiese · mediaTUM (Technical University of Munich)

Cited by 0

GM-Security and Semantic Security Revisited

1999

Abstract We give a simple proof that GM-security and semantic security are equivalent security no-tions for public key cryptosystems. By this we drastically simplify the original proof given by Goldwasser, Micali et al. 1 Introduction What does it mean for a public key cryptosystem to be secure? In their seminal paper onnotions of security for public-key cryptosystems [2], Goldwasser and Micali introduced two

Cited by 0

BRINGING SEMANTIC SECURITY TO SEMANTIC WEB SERVICES

2008

Abstract: Semantic Web services begin to emerge as the next evolution of the Service Oriented Architecture. It is become clear that authorization is going to be one of the biggest challenges. The typical obstacles which most areas of Semantic Web services have had to overcome are what parts of a Web services need semantic information, how best to use the semantics, and agreeing on standards. However, for authorization there are the fine grained security implications as well. For instance, how much authorization information is necessary to aid in Semantic Discovery of Web services? Is the authorization information opening any new security holes? We will examine a framework for expressing the proper authorization information in order to aid in the Semantic Discovery of Web services in which the requesting service most likely has the authority to invoke.

Cited by 0

Semantic security information management

Παπαευθυμίου, Κοσμάς Κ., Παπαευθυμίου, Κοσμάς Κ. · University of Thessaly Institutional Repository (University of Thessaly) · 2023

Cited by 0Open access

Security in Semantic Interoperation

Yi Zhao, Xia Wang, Wolfgang A. Halang · IGI Global eBooks · 2009

With the increasing interest in Semantic Web-based applications, researchers have started to build tools enabling organisations to share information. An important aspect in maintaining the Semantic Web is, however, to preserve security during semantic interoperation of different entities. Security and privacy are indispensable to the success of Semantic Web services. Hence, this chapter aims to investigate the currently used security methods in semantic interoperation, including the security methods employing Semantic Web representation languages such as XML, RDF and ontologies, and their application methods in semantic interoperation such as secure access control and secure knowledge management. How to manage privacy, trust and reputation at the same time during semantic interoperation will also be discussed in this chapter. Finally, some directions for our further research will be presented.

Cited by 0

Semantic Security: Specification and Enforcement of Semantic Policies for Security-driven Collaborations

R. O. Sinnott T. Doherty, N. Gray, J. Lusted · 2009

Collaborative research can often have demands on finer-grained security that go beyond the authentication-only paradigm as typified by many e-Infrastructure/Grid based solutions. Supporting finer-grained access control is often essential for domains where the specification and subsequent enforcement of authorization policies is needed. The clinical domain is one area in particular where this is so. However it is the case that existing security authorization solutions are fragile, inflexible and difficult to establish and maintain. As a result they often do not meet the needs of real world collaborations where robustness and flexibility of policy specification and enforcement, and ease of maintenance are essential. In this paper we present results of the JISC funded Advanced Grid Authorisation through Semantic Technologies (AGAST) project (www.nesc.ac.uk/hub/projects/agast) and show how semantic-based approaches to security policy specification and enforcement can address many of the limitations with existing security solutions. These are demonstrated into the clinical trials domain through the MRC funded Virtual Organisations for Trials and Epidemiological Studies (VOTES) project (www.nesc.ac.uk/hub/projects/votes) and the epidemiological domain through the JISC funded SeeGEO project (www.nesc.ac.uk/hub/projects/seegeo).

Cited by 0

SEMANTIC WEB SECURITY AND PRIVACY

N K Prasanna, Anjaneyulu Anna, SHAIK NAZEER · 2013

The Semantic Web aims at enabling sophisticated and autonomic machine to machine interactions without human intervention, by providing machines not only with data but also with its meaning (semantics). In the Semantic Web, any two strangers can interact with each other automatically and therefore this assumption does not hold. In this setting, traditional security mechanisms are not suitable anymore. Hence, a semantically enriched process is required in order to regulate an automatic access to sensitive information. Policy-based access control provides sophisticated means in order to support protecting sensitive resources and information disclosure. This paper provides an introduction to policy-based security and privacy protection, by analyzing several existing policy languages. Furthermore, it shows how these languages can be used in a number of Semantic Web scenarios.

Cited by 0

Study on semantic Web security

De-yan CHEN, Hong ZHAO, Xia ZHANG et al. · SHILAP Revista de lepidopterología · 2012

Semantic Web technologies themselves as well as the web of data constituted by semantic Web applications on the Internet might introduce new security,privacy and trust issues as well as requirements.So,security issues faced by the Semantic Web and its security status were analyzed in detail.On this basis,the semantic Web security reference framework was proposed.Finally,urgent needs about key technologies,policy specifications and safety standards of semantic Web were pointed out based on the semantic Web security reference framework.

Cited by 0Open access

Semantic Matching of Security Policies to Support Security Experts

Othman Benammar, Hicham Elasri, Abderrahim Sekkaki · arXiv (Cornell University) · 2013

Management of security policies has become increasingly difficult given the number of domains to manage, taken into consideration their extent and their complexity. Security experts has to deal with a variety of frameworks and specification languages used in different domains that may belong to any Cloud Computing or Distributed Systems. This wealth of frameworks and languages make the management task and the interpretation of the security policies so difficult. Each approach provides its own conflict management method or tool, the security expert will be forced to manage all these tools, which makes the field maintenance and time consuming expensive. In order to hide this complexity and to facilitate some security experts tasks and automate the others, we propose a security policies aligning based on ontologies process; this process enables to detect and resolve security policies conflicts and to support security experts in managing tasks.

Cited by 1Open access

Semantic Security: A Digital Watermark Method for Image Semantic Preservation

Tianwei Zuo, Yiping Duan, Qiyuan Du et al. · 2024

Digital watermarking has long been used to protect digital images from abuse. However, applying digital watermarking to semantic communication remains a challenge. This work introduces a secure coding method that combines semantic coding and digital watermarking techniques. The proposed method selects points in the target image with high semantic importance and embeds watermark information into their position vectors, perpendicular to the embedding domains of previous works. The experiments conducted on the Cityscapes dataset demonstrate that our method integrates well with semantic communication systems. Compared to the previous approach, our proposed method can more completely preserve the structural features of the target image and is better suited for Machine Type Communication (MTC) tasks, such as target detection and semantic segmentation.

Cited by 1