| | Author:Arn Waßmann| Publications | 
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 |  |  | Hermann Strack, Marlies Gollnick , Sebastian Karius , Guido Bacharach , Tor Fridell , Matthias Gottlieb , Jan Joost Norder , Hans Pongratz , Wolfgang Radenbach , Carsten Schmidt , Mirko Stanic , Geir Magne Vangen , Arn Waßmann  and Sandro Wefel |  |  |  |  | 
 KeyphrasesAuthentication, Blockchain, Certificates, credentials, DiBiHo, edu, eID, eIDAS3, eIDAS 2.0, EMREX/ELMO, EU Wallet, EUDIW, Europass/EDCI, HEI, HEI/EDU, level of assurance, OOP, OOTS, PIM, SDG, Security2, SSI, standardisation, Trust, Trustsistor, wallet. | 
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