Marcus Lippert

Using LDAP Directories for Management of PKI Processes

We present a framework for extending the functionality of LDAP servers from their typical use as a public directory in public key infrastructures. In this framework the LDAP servers are used for administrating infrastructure processes. One application of this framework is a method for providing proof-of-possession, especially in the case of encryption keys. Another one is the secure delivery of software personal security environments.

Towards secure electronic workflows

Despite the introduction of information technologies in governmental administrations, most bureaucratic processes are still paper-based. In this paper we present a framework to transfer conventional, paper-based processes to electronic workflows. Thereby, the transformation to e-Government applications has two challenges. First, to find an equivalent description for the single activities and their interaction for defining the entire process. Second, to ensure the security of the process. We identified four types of activities that can be used as basic components for the workflows considered in our work. The security aspects of the electronic representation are ensured by further framework components, for example authentication or authorization. Finally, we present how this framework can be used for other scenarios and discuss some details of our prototype implementation.