> My understanding is that a softraid passphrase is a seed from which bioctl > creates a key. > > I currently use a passphrase to decrypt my CRYPTO volume. > (How) can I create a corresponding keydisk that will decrypt the same volume?
I believe it is mutually exclusive. You can either use a passphrase or a keydisk but not both. https://www.openbsd.org/faq/faq14.html#softraidFDE
