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DIN EN 319401
Electronic Signatures and Trust Infrastructures (ESI) - General Policy Requirements for Trust Service Providers (Endorsement of the English version EN 319 401 V3.1.0 (2024-03) as a German standard)
DIN EN 319421
Electronic Signatures and Infrastructures (ESI) - Policy and Security Requirements for Trust Service Providers issuing Time-Stamps (Endorsement of the English version EN 319 421 V1.2.0 (2023-01) as a German standard)