Research
Multy-party Security Protocols
My research area is the field of multy-party security protocols,
whereby I focus mainly on anonymity issues.
GPSAA
Currently I work on the specification, implementation and analysis of a
general-purpose secure anonymity architecture (more info [here]).
It should become a general framework for different anonymity services ranging from
anonymous message sending to anonymous authorization (e.g. e-payment, e-voting), built-up
as an extensible layer hierarchy (ADL-Anonymous Datagram Layer, ASL-Anonymous Session Layer, AH-Anonymous Handshake)
on top of the Internet's TCP/IP.
This research idea has been prized by the Werner von Siemens Award 2003,
for which the project describing application can be downloaded
[here].
PROB-channel
The PROB-channel (Passive, Real-time, Observable, Black-box) is a formally defined anonymous
message sending technique. Aim was to specify a simple scenario, where a theoretically
based measure for the unspecified term "anonymity" could be given. Thus the paper presenting
the model (submitted to PET'04, [PDF])
introduces the source and destination hiding properties to act as such measures and
defines criteria to achieve a given level of anonymity.
The PROB-channel was implemented as the first anonymous message transmission technique
to conform to the ADL layer interface in the GPSAA project.
AEP
The Anonymity Enhancing Protocol (AEP) was originally designed as a general framework for
anonymous authorization techniques (such as e-payment, etc.). It specified the interfaces
and communication between three parties: the anonymous subject, the service provider
and the anonymity authority (see more [here]).
Currently AEP is being integrated into GPSAA as an implementation to conform to the AH (Anonymous Handshake)
interface.
Publications
The list of my publications can be found [here].
|