Finnish Electronic Identity

Finnish identity cards have been electronic for ages and as I tend to forget how to use it on Linux again, here are my notes.

Official application: https://dvv.fi/en/card-reader-software
- Fedora/rpm is hidden under “All versions”, “Linux versions”
DVV certificate newsletter: https://uutiskirjeet.dvv.fi/uutiset/varmennepalvelut.html

Requirements for everything

PCSDd must be running, it’s found in package pcscd on Debian and likely pcsc-lite on Fedora.

sudo systemctl enable pcscd --now

module: /usr/lib64/libcryptoki.so
managed: no

Should work as long as the DigiSignApplication from above was running before the browser was started.

This doesn’t apply if the above libcryptoki.so is created and preferably libcryptoki.so would be loaded anyway

In Settings, Advanced, Security devices load the module from (DVV app) /usr/lib64/libcryptoki.so or (OpenSC):

Debian: /usr/lib/x86_64-linux-gnu/onepin-opensc-pkcs11.so
- Package: opensc-pkcs11
Fedora: /usr/lib64/onepin-opensc-pkcs11.so
- Package: opensc

onepin is a workaround to not ask for PIN2 which is only used for legal agreements, email signing also uses PIN1.

While I don’t think the user necessarily needs them, my notes mention DVV Gov. Root CA.

Export the public key by ssh-add -L|head -n1 (the comment should be “todentamis- ja salausavain” (“authentication and encryption key”))
Naturally put it into ~/.ssh/authorized_keys, but SSH should detect it automatically. The file could also be mentioned in ssh_config

The public key should also be stored somewhere that can be passed to gitconfig or SSH signing commands if SSH signing is to be used.