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@PHDTHESIS{Memon:905534,
      author       = {Memon, Ahmed Shiraz},
      title        = {{F}ederated {A}ccess to {C}ollaborative {D}ata and
                      {C}ompute {I}nfrastructures},
      school       = {University of Iceland},
      type         = {Dissertation},
      reportid     = {FZJ-2022-00775},
      isbn         = {978-9935-9514-1-0},
      pages        = {129 p},
      year         = {2021},
      note         = {Dissertation, University of Iceland, 2021},
      abstract     = {Distributed data and compute infrastructures aim to provide
                      access to their data or compute services across disciplinary
                      and geographical borders to their users for scientific
                      research. The services are highly collaborative in nature
                      yet independent and shared among multiple scientific
                      communities. Information security and service discovery are
                      two essential functions and precursors for enabling such
                      research collaborations. Given the infrastructure’s
                      heterogeneity in data, compute, or other service offerings,
                      the services often require several kinds of authentication
                      protocols. Moreover, the users bring their own
                      organisational identity and relevant attributes to access
                      the infrastructure services. Should the services’
                      authentication protocol differ from that of the user’s,
                      the user may not be able to access the target service.
                      Therefore credential translation, attribute harmonisation,
                      scalable trust and authorisation policy management need to
                      be incorporated. In addition to that, enabling service
                      discovery in the federated infrastructures is crucial.
                      Proprietary service registration and query interfaces hinder
                      interoperability across infrastructures. Hence, instead of
                      proprietary and centralised registry approaches, a federated
                      and standard-based registry and discovery model is essential
                      for interoperability across the collaborating
                      infrastructures. This thesis is motivated by a case study
                      consisting of three multi-national research infrastructures:
                      compute (EGI), data management (EUDAT), and a community
                      infrastructure supporting linguistic research (CLARIN). The
                      thesis contributes EMIR, the European Middleware Initiative
                      (EMI) Registry, a decentralised service registry that
                      supports both hierarchical and peer-to-peer topologies and
                      enables collaboration in large-scale infrastructures. The
                      thesis also contributes the B2ACCESS service which
                      implements a proxy model with credential translation and
                      scalable trust and authorisation policy management. Finally,
                      the thesis contributes an integrative architecture realised
                      as a unified cross-infrastructure (or inter-federation)
                      service access framework, which bridges EMIR and B2ACCESS to
                      enable service discovery and access in federated
                      environments.},
      cin          = {JSC},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {5112 - Cross-Domain Algorithms, Tools, Methods Labs (ATMLs)
                      and Research Groups (POF4-511)},
      pid          = {G:(DE-HGF)POF4-5112},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      url          = {https://juser.fz-juelich.de/record/905534},
}