Digital Signatures

• personal?
• not unique
• verifiable
  • easy with maths
• secure?
  • something you know
  • something you own

Digital Signatures

eIDAS Regulation 

• Simple
  • e.g. sending email
• Advanced
  • personal
  • digital certificate
• Qualified 
  • with device
  • qualified digital cert.

SDS

AES

QES

Authentication with device

Link two devices

itsme

EUID Wallet

eIDAS 2

• 2026: available in EU
• birth certificates, sim cards, open bank account, hotel reservation, ..

https://ec.europa.eu/digital-building-blocks/sites/display/EUDIGITALIDENTITYWALLET/EU+Digital+Identity+Wallet+Home

Privacy? Companies? Resilience?

• Single (optional) Personal Identifying Data (PID), single Profile
• Central List of Trusted Entities