Microsoft PKINIT Question

["Henry B. Hotz" <hotz@jpl.nasa.gov>]

Is the Microsoft NT-PRINCIPAL-NAME attribute case sensitive?

I mean that question two ways:  1) Does a MS DC care (I'm guessing  
not)?  2) Does Heimdal care (I'm guessing yes)?

I'm particularly concerned that a smart card might have a lower case  
realm name in it and work fine with a DC, but not work with a Heimdal  
KDC that uses the conventional upper case realm name.  (Both brands  
of KDC have the same nominal realm name.  Don't ask how this can  
happen in real life, but it can.)

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The opinions expressed in this message are mine,
not those of Caltech, JPL, NASA, or the US Government.
Henry.B.Hotz@jpl.nasa.gov, or hbhotz@oxy.edu