Mittwoch, 19. Mai 2021

[HIForum] [Kolloquium] Informatisches Kolloquium (Online) am Montag, den 31.05.2021, 17:15 *** Prof. Dr. Thorsten Strufe

--- English version see below ---


Dies ist eine Einladung zum Informatischen Kolloquium am Montag, den 31.05.2021 um 17:15 Uhr

Die Veranstaltung findet bis auf weiteres online statt. 

Der Vortrag mit dem Titel ProMACs: Leveraging the Streaming Paradigm to Improve Integrity without Transmission Cost" wird von Prof. Dr. Thorsten Strufe, tätig am Karlsruher Institut für Technologie (KIT/KASTEL) und an der TU Dresden (CeTI), gehalten.

Das Kolloquium wird online mit Zoom abgehalten. Die Zugangsdaten finden Sie unten.



This is an invitation to the next informatics colloquium (online) on Monday, 31. May 2021, at 17:15.

The talk is entitled „ProMACs: Leveraging the Streaming Paradigm to Improve Integrity without Transmission Cost" and will be given by Prof. Dr. Thorsten Strufe from Karlsruhe Institute of Technology (KIT/KASTEL) and TU Dresden (CeTI).

The colloquium will be held online using zoom. You will find the access data below.



Join Zoom Meeting 

Meeting ID: 937 3517 4299

Passcode: 87303512



Im Namen des Kolloquiumkomitees

On behalf of the colloquium committee

Carolin Psyk



Prof. Dr. Thorsten Strufe

ProMACs: Leveraging the Streaming Paradigm to Improve Integrity without Transmission Cost



Efficiently integrity verification of received data requires Message Authentication Code (MAC) tags. However, while security calls for rather long tags, in many scenarios this contradicts other requirements.
Examples are strict delay requirements (e.g., robot or drone control) or resource-scarce settings.
Prior techniques suggested truncation of MAC tags, thus trading off linear performance gain for exponential security loss. To achieve security of full-length MACs with short(er) tags, we introduce Progressive MACs (ProMACs) -- a scheme that uses internal state to gradually increase security upon reception of subsequent messages. We provide a formal framework and propose a provably secure, generic construction called Whips. We evaluate applicability of ProMACs in several realistic scenarios and demonstrate example settings where ProMACs can be used as a drop-in replacement for traditional MACs.



Thorsten Strufe is professor for IT Security at Karlsruhe Institute of Technology (KIT/KASTEL), and adjunct professor for Privacy and Network Security at TU Dresden, as deputy speaker of the Excellence Centre for Tactile Internet with Human-in-the-Loop (CeTI). His research interests lie in the areas of privacy and resilience, especially in the context of social networking services and large scale distributed systems.
Recently, he has focused on studying privacy implications of user behavior and possibilities to provide privacy-preserving and secure networked services. Previous posts include faculty positions at TU Dresden, TU Darmstadt, and Uni Mannheim, as well as postdoc/researcher positions at EURECOM and TU Ilmenau.


Contact  Prof. Dr. Mathias Fischer