Dear Members,

I made some queries in Google to find out what limitations are there at 
managing huge number of smart cards, USB tokens (and keys) simultaneously at 
the level of CSP, or PKCS#11, but just opensc.conf file gave me some answers.

# Maximum Number of virtual slots.
# Default: 16
# max_virtual_slots = 32;

# Maximum number of slots per smart card.
# Default: 4
# slots_per_card = 2;

# (max_virtual_slots/slots_per_card) limits the number of readers
# that can be used on the system. Default is then 16/4=4 readers.

I know that drivers of HSMs can manage (address) thousands of keys, but there 
were no exact values for regular smart card, USB token drivers.

What is the maximum number (if any exists at this level) of regular smart 
cards, USB tokens (and keys) that can be used and managed by OpenSC in the same 
environment (USB controller supports up to 127 devices, up to seven tiers, 
including the root tier and five non-root hubs)?

Thanks in advance!

Aron

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