Enigmail speed geeking

[Robert J. Hansen]

> Of course not (I hope). You keep a backup of your key in a safe
> place. This goes for smartcard keys as well. The situation is the
> same whether you use a smartcard or not.

This is not true.  There are a lot of use cases where "there are no
backups of this smart-card key" are baked into the security model.
That's why we can create keys on the card directly: that way they never
need to exist outside of the card.

> Not having a backup of your encryption subkeys means a not very
> robust single point of failure, and if that hard disk crashes, or the
> file system is corrupted, or your smartcard dies, you suddenly lose
> access to all your encrypted files.

Yes, and in some security models that's preferable to having a backup
copy somewhere.

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