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].

GERGELYTOTH99_AT_GMAIL.COM