Providing controlled access to distributed resources and services with EGI Check-in: the provider perspective

by Andreas Kozadinos (GRNET), Nicolas Liampotis (GRNET), Nikolaos Evangelou (GRNET), Valeria Ardizzone (EGI.eu)

Zoom webinar

Zoom webinar


Target audience

Developers and administrators of relying parties that want to connect to Check-in for authenticating users and managing their access rights.

Webinar programme (1h)

  • Overview of the EGI Check-In service for identity and access management.

  • Guidelines for enabling secure access to relying parties

  • Q&A

Description about the presentation

This training will help new services to integrate with Check-in, the EGI Authentication & Authorisation Infrastructure enabling secure access to relying parties. The target group of the training are developers and administrators of services that want to connect to Check-in for user authentication and authorisation. 

The training will showcase the use of the EGI Check-In Federation Registry tool for managing the lifecycle of a relying party, i.e. registration, reconfiguration and de-registration. The training will include hands-on sessions for the participants to integrate their own relying party to Check-In.

About the speakers


Nicolas Liampotis
 AAI Research Engineer
 GRNET - Greek Research and Technology Network

Nicolas Liampotis received his Diploma in Electrical and Computer Engineering from the National Technical University of Athens in 2005. He has participated in numerous national (funded by various public organisations, as well as private companies) and international (EU-funded) research and development projects (Tequila, Daidalos II, PERSIST, SOCIETIES, ECONET, VI-SEEM, EGI-Engage, EUDAT2020, MAGIC, AENEAS, AARC2, SeaDataCloud, EOSC-hub, NI4OS-Europe). His role in these projects was that of an architecture designer, technical contributor, and software engineer, focusing on the design, development, evaluation, and optimization of solutions for trust management, privacy protection and federated access in distributed infrastructures. He is currently working at GRNET as a Trust & Identity engineer and is leading the development of the EGI Check-In Authentication & Authorization Infrastructure service that enables access to research data and services provided across the infrastructures participating in EOSC-hub. He is also involved in the architecture working group within the AARC Engagement Group for Infrastructures (AEGIS), which brings together representatives from research and e-infrastructures, operators of AAI services for a more effective uptake of AAI recommendations in their federated access solutions.


Valeria Ardizzone
 Service Delivery Officer at EGI Foundation


Valeria Ardizzone joined the EGI Foundation in September 2019. She has expertise in many domains, moving from the Authentication and Authorization Federated infrastructure to the Operations in Distributed Computing, passing on IT Service Management, the integration of scientific research applications, user community training and project management.
Before EGI, Valeria worked in GARR as a permanent staff of the Compute and Storage Department, in the context of the GEANT4_2 project and as DECIDE project’s Technical Coordinator. Valeria holds a MSc in Computer Science from the University of Catania (Italy).


  Andreas Kozadinos
  Student at the Department of Informatics at University of Piraeus




Andreas Kozadinos is a student at the Department of Informatics at University of Piraeus. He joined GRNET in October 2019 as a Web Developer for RCIAM (Identity Access Management for Research Communities), mainly focusing on the development of the Federation Registry, a secure web interface for managing trusted entities in a federation using popular authentication and authorisation technologies such as SAML and OpenID Connect. Before GRNET he was working as a Junior Web Developer at Awiar Solutions.


 Nick Evangelou
Trust and Identity Engineer at GRNET



Nick Evangelou obtained the Bachelor Degree in Computer Science Software Engineering from the University of Piraeus and MSc in Cybersecurity from the same university. He is working at GRNET as a Trust and Identity Engineer since 2017. He is involved in RCIAM (Identity Access Management for Research Communities) contributing with his deep knowledge in OAuth2/OpenID Connect. He has also worked as Trust and Identity Engineer in the Systems Security Laboratory (SSL) of University of Piraeus Research Center (UPRC) and as a Webapp Penetration Tester in the Hellenic Army IT Support Center (HAISC) during his military service.