The paper reports an effort made for understanding the effect of task delegation policy in a peer-to-peer volunteer computing platform. This effort includes the implementation of a simulation environment and the development of associated analytical models for the analysis of task delegation policies in peer-to-peer computing platforms. Based on the analytical model best and worst task delegatio...

Scoping behavioral variations to dynamic extents is useful to support non-functional concerns that otherwise result in cross-cutting code. Unfortunately, such forms of scoping are difficult to obtain with traditional reflection or aspects. We propose delegation proxies, a dynamic proxy model that supports behavioral intercession through the interception of various interpretation operations. Del...

SDM is a Secure Delegation Model for Javabased distributed object environments. SDM extends current Java security features to support secure remote method invocations that may involve chains of delegated calls across distributed objects. The framework supports a control API for application developers to specify mechanisms and security policies surrounding simple or cascaded delegation. Delegati...

A proposer requires the approval of a veto player to change status quo. Preferences are single peaked. Proposer is uncertain about Vetoer's ideal point. We study Proposer's optimal mechanism without transfers. Vetoer given menu, or delegation set, choose from. The set balances extent compromise with risk veto. Under reasonable conditions, "full delegation" optimal: can any action between quo an...

We address the problem of secure and verifiable delegation of general pairing computation. We first analyze some recently proposed pairing delegation schemes and present several attacks on their security and/or verifiability properties. In particular, we show that none of these achieve the claimed security and verifiability properties simultaneously. We then provide a fully verifiable secure de...

In many application domains, there are certain aspects that cannot be modeled in an adequate way by using generalization although it may be the concept of choice at first sight. Sometimes common associations such as interaction or aggregation will fail as well. In those cases, delegation often proves to allow for an appropriate abstraction. While delegation has been an important concept in diff...