subkeys on smartcard?

Daniel Pocock daniel at
Wed Jun 26 15:10:19 CEST 2013

I understand this is a bit old, but I believe the concept is still current:

Essentially, can anyone confirm why it is recommended to only store
subkeys on a smart card?

a) is it because of the risk that the card might be lost or damaged?

b) or is it because of the risk that a smartcard may fall into the wrong

If the primary key was generated on a PC and stored onto two smart cards
and they were both kept in secure locations and only used in a secure
location, is it therefore quite acceptable to use the primary key on a
smart card and potentially more secure than keeping it on a disk?

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