Bastian, PaulStöcker, CarstenSchwalm, SteffenRoßnagel, HeikoSchunck, Christian H.Mödersheim, Sebastian2022-06-072022-06-072022978-3-88579-719-7https://dl.gi.de/handle/20.500.12116/38700The proposal for review of the eIDAS Regulation from 2021 has opened strong expectations for a deep change in traditional identity models. The user-centric identity model proposed starts with the creation of European Digital Identity Wallets that will enable citizens’ control over their data in identification and authentication processes without control by entities providing the identification services. Likewise digital identities and digital signatures are in place and interoperability between existing solutions mainly based on x509 certificates and decentralized PKI using DID/VC foreseeable. The paper provides various options to address different aspects in combining x509 and DID/VC approaches.eneIDASSSIself-sovereign identityx509DIDverifiable credentialsinteroperabilityText/Conference Paper10.18420/OID2022_131617-5468