16 Mar
2010
16 Mar
'10
9:20 a.m.
Hello Sebastien,
On Tue, 16 Mar 2010 00:09:46 +0100, "=?UTF-8?Q?S=C3=A9bastien_Lorquet?="
<squalyl(a)gmail.com> wrote:
Sylvain, if I evolve your algorithm, then I think we don't need to store
anything in EEPROM. Just keep that in RAM and force a renegociation at MS
boot. What do you think of that?
Just a question: Why do you want to avoid writing Kc to the EEPROM ? The
cards I know have a quite huge number of EPPROM write cycles, e.g. for a
certain MULTOS card the number is specified to be 500.000. I don't know
the number for the card you use, but I expect it to be at least 100.000.
For our purpose this should be really good enough, I would expect more
writes to EF LOCI and EF BCCH than to EF KC.
A question to the list: does anyone know where to get a tool to
cut out a SIM from a standard smart card ? I don't prefer doing this
with a knife or similar, this might only be OK for one or two pieces
and the result also does not look too good.
Best regards,
Dieter
--
Dieter Spaar, Germany spaar(a)mirider.augusta.de