Fraunhofer Institut für Integrierte Publikations-und Informationssysteme IPSI

Fraunhofer Institut für Integrierte Publikations-und Informationssysteme IPSI

Now showing 1 - 10 of 68

Verfahren zur Diensteerkennung und Diensteinformationsbereitstellung im Vergleich

( 2002)
Kirchner, H.
;
Schönfeld, W.
;
Steinmetz, R.
Biometric authentication for ID cards with hologram watermarks

( 2002)
Croce Ferri, L.
;
Mayerhöfer, A.
;
Frank, M.
;
Vielhauer, C.
;
Steinmetz, R.
Modeling IP-based mobility management

( 2002)
Schönfeld, W.
;
Meissner, A.
;
Kirchner, H.
;
Steinmetz, R.
Verfahren zur Diensteerkennung und Diensteinformationsbereitstellung im Vergleich

( 2002)
Kirchner, H.
;
Schönfeld, W.
;
Steinmetz, R.
Framework for media data and owner authentication based on cryptography, watermarking, and biometric authentication

( 2001)
Dittmann, J.
;
Steinebach, M.
;
Croce Ferri, L.
;
Vielhauer, C.
;
Steinmetz, R.
;
Wohlmacher, P.
Vulnerabilities and security limitations of current IP telephony systems

( 2001)
Ackermann, R.
;
Schumacher, M.
;
Roedig, U.
;
Steinmetz, R.

Within the traditional telephone system a certain level of quality and security has been established over the years. If we try to use IP Telephony systems as a core part of our future communication infrastructure (e.g. as classical PBX enhancement or replacement) continuous high availability, stable and error-free operation and the protection of the privacy of the spoken word are challenges, that definitely have to be met. Since manufacturers start deploying new end systems and infrastructure components rather fast now - a critical inspection of their security features and vulnerabilities is mandatory. The critical presentation of the theoretical background of certain vulnerabilities, testing and attacking tools and the evaluation results reveals, that well-known security flaws become part of implementations in the new application area again and the security level of a number of examined solutions is rather insufficient.
Transitivity based enrollment strategy for signature verification systems

( 2001)
Vielhauer, C.
;
Steinmetz, R.
;
Mayerhöfer, A.
Approaches to biometric watermarks for owner authentification

( 2001)
Vielhauer, C.
;
Steinmetz, R.
A framework for group integrity management in multimedia multicasting

( 2001)
Meissner, A.
;
Wolf, L.
;
Schönfeld, W.
;
Steinmetz, R.
Coherence in the learning system k-Med

( 2001)
Steinmetz, R.
;
Steinacker, A.
;
Seeberg, C.

Fraunhofer Institut für Integrierte Publikations-und Informationssysteme IPSI

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Fraunhofer Institut für Integrierte Publikations-und Informationssysteme IPSI

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