Hello GnuPG Users,

Is there a known way to encrypt multiple/all private keys in the
keyring with a single smart card?

Use case: I have separate keys for separate identities (e.g. personal
and professional) and I would like to secure these keys with a smart
card (actual ISO 7816 card, not a USB token) such that I can access the
private keys using the card and a PIN or PINs.

My goal is to have the ease of a card and shorter PIN, and the
security of needing two factors.

I will be installing the OpenPGP Card applet onto the card myself, so
modified versions are an option.

Using one card per identity is cost and convenience prohibitive.

Currently I am using GPG 2.4.8 with libcrypt 1.11.2 installed from the
Arch Linux repository.


Thank you for your time,
Bow

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