Digittrade HS256S User Manual page 85

5) Operating multiple storage devices with a single smart card
To accomplish this multiple HS256S have to be initialised with an identical cryp-
tographic key. The idea is of particular interest for situations in which operation of
many storage devices with a single smart card are limited due to for example data
sizes that exceed that of a single HS256Sthe data can then be split over multiple
storage devices. Even when data is frequently sent it provides a great solution as
every time data is dispatched a different HS256S (with the identical cryptographic
key) can be used, so that waiting for the return of a personalised HS256S is un-
necessary. The recipient can always access the data with the same smart card that
contains the corresponding cryptographic key.
6) Deleting the cryptographic key
The user has the possibility to delete the key without attracting attention in dan-
gerous situations, given he/she knows the PIN. In order to do this three additional
buttons must be pressed. (Chapter 4.2)
Access to the data is now impossible with this smart card and therefore also for
the user.
Provided the smart card PIN is unknown, the cryptographic key is also deleted by
entering the 8-digit PIN wrong 8 times.
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