PROJECT TITLE :
Workflow Signatures for Business Process Compliance
Interorganizational workflow systems play a fundamental role in business partnerships. We introduce and investigate the concept of workflow signatures. Not solely will these signatures be used to make sure authenticity and protect integrity of workflow information, but also to prove the sequence and logical relationships, such as AND-be part of and AND-split, of a workflow. Hence, workflow signatures can be electronic evidence helpful for auditing, that's proving compliance of business processes against some regulatory requirements. Furthermore, signing keys will be used to grant permissions to perform tasks. Since the signing keys are issued on-the-fly, authorization to execute a task among a workflow can be controlled and granted dynamically at runtime. During this paper, we propose a concrete workflow signature theme, which relies on hierarchical identity-based cryptography, to meet security properties needed by interorganizational workflows.
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