Karatsiolis, V.V.KaratsiolisLippert, M.M.LippertWiesmaier, A.A.Wiesmaier2022-03-102022-03-102004https://publica.fraunhofer.de/handle/publica/344813We 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.en005004400conference paper