28 Sep
2017
28 Sep
'17
12:52 a.m.
Hi Kathryn,
On Wed, Sep 27, 2017 at 05:37:36PM -0400, Kathryn Heckman wrote:
Is there any way to retrieve the value of OP from OPc and Ki?
No, that defeats the entire purpose of having card-individual OPc values.
If you could just revert that operation, there would be no [security] advantage of card-individual OPc values over a global OP value, and hence that entire option could be dropped from the specifications altogether.
Regards, Harald
--
- Harald Welte laforge@gnumonks.org http://laforge.gnumonks.org/
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