RSA-PSS signature algorithm support
When using gnome-keyring as a source for certificates as a PKCS#11 module and Google Chrome, an error occurs during the signature phase. We suspect this is because TLS 1.3 requires rsa_pss_rsae_sha256 support, but gnome-keyring doesn't have it. In order to support TLS 1.3 client auth scenarios, gnome-keyring needs to support RSA-PSS signatures.
This was originally reported in Bugzilla (https://bugzilla.gnome.org/show_bug.cgi?id=794847) but it's seen no activity in over a year and I couldn't find a corresponding issue here.