[HGI-News-de] HGI Kolloquium Do, 6.5.: A Multivariate Signature Scheme with a Partially Cyclic Public Key von Albrecht Petzold

[Newsletter des Horst Görtz Instituts]

Hallo,

im Rahmen des HGI Kolloquiums "Aktuelle Themen der IT-Sicherheit" wird am kommenden *Donnerstag* der folgende Vortrag angeboten:

Albrecht Petzold (TU Darmstadt)
*A Multivariate Signature Scheme with a Partially Cyclic Public Key*

Termin:
Donnerstag, den 6. Mai um  11.00 Uhr (*s.t.*)
Raum: IC 4/161

Abstract: Multivariate public key cryptography is one of the main approaches to guarantee the security of communication in the post-quantum world. Due to its high efficiency and modest computational requirements, multivariate cryptography seems especially appropriate for signature schemes for low cost devices. However, multivariate schemes are not yet much used, mainly because of the large size of the public key. In this talk we present a new idea to reduce the public key size of multivariate cryptosystems by proposing a multivariate signature  scheme with a partially cyclic public key. The scheme is based on the UOV-Scheme of Kipnis and Patarin, but reduces the size of the public key by up to 83%.

Interessierte sind herzlich eingeladen!


Vorankündigung: 
20. Mai 2010: Mathias Herrmann (CITS), Maximizing Small Root Bounds by Linearization and Applications to Small Secret Exponent RSA - 27. Mai 2010: Orr Dunkelman (The Weizmann Institute of Science), A Practical-Time Attack on the KASUMI Cryptosystem Used in GSM and 3G Telephony - 10. Juni 2010: Markus Kasper (EMSEC), Title TBA - 17. Juni 2010: Roberto Avanzi (RUB), Arithmetic of Supersingular Koblitz Curves in Characteristic Three.


Im Laufe des Semesters gibt es noch viele freie Termine im HGI Kolloquium - Freiwillige vor!


Informationen über die nächsten geplanten Vorträge im Rahmen des HGI Kolloquiums sind auch im Web zu finden:
http://www.hgi.rub.de/hgi/hgi-seminar/aktuelles


Viele Grüße
Timo