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Audited credential delegation: a usable identity management solution for grid environments

Current grid security solutions are based on public key infrastructure (PKI). While PKI offers strong security for VPH projects, it suffers from serious usability shortcomings in terms of end-user acquisition and management of credentials which deter scientists from exploiting distributed VPH environments. To overcome these problems, we have developed Audited Credential Delegation (ACD), a usable security solution for authentication, authorisation and auditing in distributed environments. ACD supports the use of local credentials. Currently, a local ACD username-password combination can be used to access grid-based resources while Shibboleth support is underway. We will present the latest ACD developmentsi in this talk.