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Agent-mediated e-commerce (AMEC) transaction services will be a paradigm shift from the existing client-server e-commerce model. In order to fulfill the leverage of AMEC intermediary services with secure and trusted service capabilities, we propose an agent-oriented public key infrastructure (PKI) operating with a variety of digital certificates. Under this(More)
In this paper, we are going to show how to build up agent-oriented Public Key Infrastructure(PKI) from SPKI/SDSI and X.509 standards. A variety of delegation mechanisms for agents will be demonstrated under this agent-oriented PKI. The mechanisms include: chain-ruled, threshold, and conditional. The lack of agent security management standards did not allow(More)
In this paper, we encompass and extend previous ontology-based data integration system. A semantic privacy-preserving model provides authorized view-based query answering over a widespread multiple servers for data sharing and integration. The combined semantics-enabled privacy protection policies are used to empower the data integration and access control(More)
We propose a semantics-enabled layered policy architecture for the exchange and management of multiple policies created by different policy languages on the Web. This architecture consists of four layers: Unifying Logic (UNL), Policy Interchange Format (PIF), Privacy Protection/DRM (PPD), and Domain Specific Applications (DSA). A meta-Policy Interchange(More)
We propose that the semantic formal model for P3P and EPAL-based privacy protection policies can be enforced and expressed as a variety of ontologies and rules (ontologies+rules) combinations, such as DLP, SWRL, AL-log, DL- log, DL+log, and MKNF, etc. Based on P3P and EPAL's original expressions and their dictionaries, several ontologies+rules semantic(More)
The main issues related to cloud computing implementation are security, privacy, and law-awareness. We consider data protection with law-awareness as the major concern for cloud service providers (CSPs) and their customers. Therefore, we provide Law-as-a-Service (LaaS) for CSPs on our law-aware semantic cloud policy infrastructure. The semantic legal(More)
The cloud computing platform provides utility computing allowing people to have convenient and flexible information sharing services on the web. We investigate the inter-disciplinary area of information technology and law and use semantics-enabled policies for modeling legal regulations in the cloud. The semantics-enabled policies of information sharing and(More)