At 18:11 13/03/2008 -0400, you wrote:
I'm writing a set of javacard applets and one of the pieces of data I
needed was what AID/RID to select for my applets. I *really* didn't want
to go through the hassle of registering with whatever body gives out RIDs.
"hassle" I don't know, reliable for sure.
A little research revealed that AIDs starting with 'F' were reserved for
proprietary assignments but that collisions might be possible. I was
going to need something that would have a small chance of collisions.
What I ended up selecting for my AID was "0xF0" prepended to the ASN1
encoding of a specific company's root object identifier as assigned by the
Internet Assigned Numbers Authority..
E.g. 1.3.6.1.4.1.somenumber or F0 06 0A 2B 06 01 04 01 XX XX XX
Has anyone else come up with a different solution?
collision would not be possible with registered AIDs but uncertain choice
can occur when several similar applets with same RID are present, an usual
solution is to provide an EF_DIR_ISO that lists applet information, with
for each entry:
- an AID
- a human readable name
- discretionary data ad libitum
One of the early questions I never asked was whether or not the musclecard
applet AID was "legitimately" assigned?
btw, what is the AID used by musclecard applet ?...
Sylvain.
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