Trustworthy Service Selection Scheme Based on Attribute Signature

A fundamental challenge in service-oriented computing (SOC) is to select trustworthy Service. Existing approaches for service selection fail to capture the dynamic trust relationships between stranger services. Automatic trust negotiation (ATN)is a new approach to establish trust between strangers on the internet through the bilateral exchange of digital credentials. When a credential contains sensitive information, its disclosure is governed by an access control policy that specifies credentials that must be received before the sensitive credential is disclosed. The traditional ATN is inefficient in negotiation and strategic cycle may appear. In this paper we proposed a service selection scheme based on attribute signature (WSSABS). WSSABS, based on the Decisional Bilinear Diffie-Hellman, provide administratively scalable alternative to attribute-based authorization methods and provide fine-grained access control for Web service. Attribute Signature with attribute value commit methods are used to prevent collusion and forge. Finally, we show a brief security proof about the scheme.