Now that the link is fixed I'll explain what we would have to do for the low
levels on a resource manager. On the top level or the level that is what the
Application uses we can write a PC/SC subset of commands for the Application to
talk to. Unfortunately there are some kernel issues here if we want the
resource manager to show up as a device like /dev/smartcard or whatever. I
suppose you could have a static shared library which all the applications call
also. Anyway, in this high level API there is a command which allows the
Application to tell the Resource Manager which reader to utilize. So a command
might be like this HandleIoInitialize ("Towitoko ChipDrive extern", PORT_COM2);
This functions (which is bogus) would then grep a configuration file looking
for the "Towitoko ChipDrive extern" configuration. It would then see what
ports are available to it and if everything was OK, that file would also list
the location of it's shared library. The shared library would then be loaded
into memory which has it's appropriate CT-API commands with CT-BCS implemented
underneith even if the reader was poorly designed to fit this spec we can
always emulate in software. The above function would return a Handle known to
the Resource Manager which would put a lock on that handle and the application
could then speak freely to the smartcard. The resource manager should be
flexible enough to handle readers with PIN pads, Displays, etc. such like the
CT-BCS did. We can do this by adding entries into the configuration file. I
suppose we will have just 1 file for all of the readers instead of splitting
them up. That could be a mess. The Resource Manager is surprisingly pretty
simple to do I'm just not quite so sure how I want all of the applications to
be able to communicate with it. I will need some suggestions here.
Questions ? Concerns ? Let me know.
Thanks
Dave
--
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David Corcoran Internet Security/Smartcards
Work: School:
205 Industrial Blvd 2252 US Highway 52 West Apt C4
Sugar Land, TX 77478 West Lafayette, IN 47906
Suggestion: Use Linux, it is for IQ's higher than 95.
Quote:
If you can't make it work, at least make it look good.
~ Bill Gates
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Linux Smart Card Developers - M.U.S.C.L.E.
(Movement for the Use of Smart Cards in a Linux Environment)
http://www.linuxnet.com/smartcard/index.html
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