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105 lines
4.2 KiB
Markdown
105 lines
4.2 KiB
Markdown
# Finnish Electronic Identity
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Finnish identity cards have been electronic for ages and as I tend to forget
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how to use it on Linux again, here are my notes.
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* Official application: https://dvv.fi/en/card-reader-software
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* Fedora/rpm is hidden under "All versions", "Linux versions"
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* DVV certificate newsletter: https://uutiskirjeet.dvv.fi/uutiset/varmennepalvelut.html
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## Requirements for everything
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PCSDd must be running, it's found in package `pcscd` on Debian and likely
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`pcsc-lite` on Fedora.
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```bash
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sudo systemctl enable pcscd --now
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```
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[As in my shell-things repo, /etc/pkcs11/modules/libcryptoki.module should be created;](https://gitea.blesmrt.net/mikaela/shell-things/src/branch/master/etc/pkcs11/modules)
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```
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module: /usr/lib64/libcryptoki.so
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managed: no
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```
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## Chromium
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Should work as long as the `DigiSignApplication` from above was running before
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the browser was started.
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## Firefox and Thunderbird
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***This doesn't apply if the above libcryptoki.so is created
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and preferably `libcryptoki.so` would be loaded anyway***
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In Settings, Advanced, Security devices load the module from (DVV app) `/usr/lib64/libcryptoki.so` or (OpenSC):
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* Debian: `/usr/lib/x86_64-linux-gnu/onepin-opensc-pkcs11.so`
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* Package: `opensc-pkcs11`
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* Fedora: `/usr/lib64/onepin-opensc-pkcs11.so`
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* Package: `opensc`
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`onepin` is a workaround to not ask for PIN2 which is only used for legal agreements,
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email signing also uses PIN1.
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## Okular
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Okular is the KDE document viewer and supports signing PDF files using FINEID!
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There are three ways to go, they all begin with *Settings* menu, *Configure backends*
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and *PDF*.
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Set the certificate database to one of the three:
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* `/etc/nssdb` with password that I don't know.
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* `~/.pki/nssdb` which password theoretically reads in `~/.digisign/Seed.txt` assuming the official DigiSignApplication is used.
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* `~/.mozilla/firefox/<randomString>.<ProfileName>` - when Firefox is used (may require the configuration above), didn't ask me for a password, which may be the main password and directly offers the certificates from FINEID.
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Next Apply or OK and restart Okular, open *Tools* menu and select
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*Digitally sign...*, draw an area for the signature (which FINEID wants to be big),
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select where to save the signed .pdf and enter the signing PIN a few times.
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These signed documents can then be verified at [English](https://dvv.fi/en/validate-pdf-document),
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[Finnish](https://dvv.fi/tarkasta-pdf-asiakirja) or [Swedish](https://dvv.fi/sv/granska-pdf-dokument)
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or other EIDAS/European signing verification capable services or applications.
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```txt
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✔️ PDF document validated. The following signatures were found:
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1 valid signatures with EU qualified certificate issuers and signature keys stored in a qualified signature creation device.
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Signature 1/1: [...]
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✔️ The electronic signature is valid and has not been modified or forged after signature. Signature level is PKCS7_B (basic).
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✔️ The signature is made by a party trusted by DVV.
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✔️ The signature is made with an EU qualified certificate.
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✔️ The signature key is stored in an EU qualified signature creation device (QSCD).
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Signed by: ...
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Issuer of certificate and root certificate: VRK Gov. CA for Citizen Certificates - G3 | VRK Gov. Root CA - G2 (Trusted)
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Time of signature: ... (Time stamp not validated by a time stamp authority (TSA))
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```
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## Root certificates
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While I don't think the user necessarily needs them, my notes mention `DVV Gov. Root CA`.
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* https://dvv.fi/en/ca-certificates
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## Testing
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* https://dvv.fineid.fi/en/authentication
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## FINEID as SSH key
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0. I would start by `ssh-add -D` to remove other keys from the ssh-agent.
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1. Add the key to the agent
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* Debian: `ssh-add -s /usr/lib/x86_64-linux-gnu/opensc-pkcs11.so`
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* Fedora: `ssh-add -s /usr/lib64/opensc-pkcs11.so`
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2. Export the public key by `ssh-add -L|head -n1` (the comment should be "todentamis- ja salausavain" ("authentication and encryption key"))
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3. Naturally put it into `~/.ssh/authorized_keys`, but SSH should detect
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it automatically. The file could also be mentioned in `ssh_config`
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The public key should also be stored somewhere that can be passed to gitconfig
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or SSH signing commands if SSH signing is to be used.
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Via: https://www.linux.fi/wiki/HST#Ssh_2
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