Thu, 27 Oct 2016
14:00 -
15:15
L4
Wed, 01 Feb 2017
15:00
15:00
Code Based Cryptography using different Metrics
Joachim Rosenthal
(University of Zurich)
Abstract
Code based Cryptography had its beginning in 1978 when Robert McEliece
demonstrated how the hardness of decoding a general linear code up to
half the minimum distance can be used as the basis for a public key
crypto system. At the time the proposed system was not implemented in
practice as the required public key was relatively large.
With the realization that a quantum computer would make many
practically used systems obsolete coding based systems became an
important research subject in the area of post-quantum cryptography.
In this talk we will provide an overview to the subject.
In addition we will report on recent results where the underlying
code is a disguised Gabidulin code or more generally a subspace
code and where the distance measure is the rank metric respecively the
subspace distance.
In its first five hundred years Oxford University had many fine mathematicians, astronomers and philosophers – from the Merton scholars of the early 14th century to the newly appointed Savilian Professors of Geometry and Astronomy in the 17th century. Indeed some of the most sophisticated mathematical discussions of the Middle Ages took place at Oxford in the 14th century.
Find out more in the latest in our Oxford Mathematics History series.
As he retires from the the Savilian Chair of Geometry, Oxford Mathematician Nigel Hitchin reflects in this interview with Martin Bridson. From early mathematical inspiration at school in Duffield, Derbyshire, Nigel recalls his often unplanned progress via Jesus College, Oxford, Princeton, Cambridge and Warwick, before his final return to Oxford.
Thu, 20 Oct 2016
16:00 -
17:00
C5
Fri, 28 Oct 2016
11:45 -
12:45
L4
InFoMM CDT Group Meeting
Niall Bootland and Sourav Mondal
(Mathematical Institute)
Abstract
Niall Bootland (Scalable Two-Phase Flow Solvers)
Sourav Mondal (Electrohydrodynamics in microchannel)
Abstract: Flow of liquid due to an electric potential gradient is possible when the channel walls bear a surface charge and liquid contains free charges (electrolyte). Inclusion of electrokinetic effects in microchannel flows has an added advantage over Poiseuille flow - depending upon the electrolyte concentration, the Debye layer thickness is different, which allows for tuning of flow profiles and the associated mass transport. The developed mathematical model helps in probing the mass transfer effects through a porous walled microchannel induced by electrokinetic forces.
What can fashionable ideas, blind faith, or pure fantasy have to do with the scientific quest to understand the universe? Surely, scientists are immune to trends, dogmatic beliefs, or flights of fancy? In fact, Roger Penrose argues that researchers working at the extreme frontiers of mathematics and physics are just as susceptible to these forces as anyone else.