On Rehoming the Electronic ID to TEEs

Government Electronic IDs (EIds) are digital credentials issued to the citizens. In Europe, EIds are distributed in the form of identity cards or passports that allow for identity verification towards government and private services in the digital domain. This paper provides a reference design and implementation examples for Trusted Execution Environment (TEE) based EIds. Especially, the paper highlights the role of attestation during enrolment, a requirement that is not present in legacy EIds.