46 citations · 117 across the 13 of their papers we have counts for
14 papers
Addressing Labelled Data Scarcity: Taxonomy-Agnostic Annotation of PII Values in HTTP Traffic using LLMs
Thomas Cory, Axel Küpper
Automated privacy audits of web and mobile applications often analyse outbound HTTP traffic to detect Personally Identifiable Information (PII) leakage. However, existing learning-…
ExPrESSO: Zero-Knowledge backed Extensive Privacy Preserving Single Sign-on
Kaustabh Barman, Fabian Piper, Sanjeet Raj Pandey +1
User authentication is one of the most important aspects for secure communication between services and end-users over the Internet. Service providers leverage Single-Sign On (SSO)…
DAXiot: A Decentralized Authentication and Authorization Scheme for Dynamic IoT Networks
Artur Philipp, Axel Küpper
Federated and decentralized networks supporting frequently changing system participants are a requirement for future Internet of Things (IoT) use cases. IoT devices and networks of…
A Tutorial on the Interoperability of Self-sovereign Identities
Hakan Yildiz, Axel Küpper, Dirk Thatmann +2
Self-sovereign identity is the latest digital identity paradigm that allows users, organizations, and things to manage identity in a decentralized fashion without any central autho…
Blade: A Blockchain-supported Architecture for Decentralized Services
Sebastian Göndör, Hakan Yildiz, Martin Westerkamp +1
Decentralized services and applications provide a multitude of advantages for their users, such as improved privacy, control, and independence from third parties. Anyhow, decentral…
Towards Decentralized Identity Management in Multi-stakeholder 6G Networks
Sandro Rodriguez Garzon, Hakan Yildiz, Axel Küpper
Trust-building mechanisms among network entities of different administrative domains will gain significant importance in 6G because a future mobile network will be operated coopera…
SmartSync: Cross-Blockchain Smart Contract Interaction and Synchronization
Martin Westerkamp, Axel Küpper
Cross-Blockchain communication has gained traction due to the increasing fragmentation of blockchain networks and scalability solutions such as side-chaining and sharding. With Sma…
Decentralized Identifiers and Self-sovereign Identity in 6G
Sandro Rodriguez Garzon, Hakan Yildiz, Axel Küpper
A key challenge for mobile network operators in 6G is to bring together and orchestrate a variety of new emerging players of today's mobile ecosystems in order to provide economica…
Anomaly Detection with HMM Gauge Likelihood Analysis
Boris Lorbeer, Tanja Deutsch, Peter Ruppel +1
This paper describes a new method, HMM gauge likelihood analysis, or GLA, of detecting anomalies in discrete time series using Hidden Markov Models and clustering. At the center of…
Blockchain-based Supply Chain Traceability: Token Recipes model Manufacturing Processes
Martin Westerkamp, Friedhelm Victor, Axel Küpper
Growing consumer awareness as well as manufacturers' internal quality requirements lead to novel demands on supply chain traceability. Existing centralized solutions suffer from is…
Cross-Domain Discovery of Communication Peers. Identity Mapping and Discovery Services (IMaDS)
Ingo Friese, Rebecca Copeland, Sebastian Göndör +4
The upcoming WebRTC-based browser-to-browser communication services present new challenges for user discovery in peer-to-peer mode. Even more so, if we wish to enable different web…
Cloud Service Matchmaking Approaches: A Systematic Literature Survey
Begüm İlke Zilci, Mathias Slawik, Axel Küpper
Service matching concerns finding suitable services according to the service requester's requirements, which is a complex task due to the increasing number and diversity of cloud s…
Cloud Service Matchmaking using Constraint Programming
Begüm İlke Zilci, Mathias Slawik, Axel Küpper
Service requesters with limited technical knowledge should be able to compare services based on their quality of service (QoS) requirements in cloud service marketplaces. Existing…
The Open Service Compendium. Business-pertinent Cloud Service Discovery, Assessment, and Selection
Mathias Slawik, Begüm İlke Zilci, Fabian Knaack +1
When trying to discover, assess, and select cloud services, companies face many challenges, such as fast-moving markets, vast numbers of offerings, and highly ambiguous selection c…