Latvia's ID cards support e-signing of digital documents, so I could have a pdf "I authorise you to send this data to xyz@example.org" and sign it so that the recipient can securely verify that this was signed by Name Surname ID123.
Estonia has it quite similar, I'm not certain if it's technically the same standard or something slightly different.
Estonia has it quite similar, I'm not certain if it's technically the same standard or something slightly different.