Re: [PATCH] advapi32: Add magic codes to HCRYPTKEY and HCRYPTHASH.

[Hans Leidekker]

On Wed, 2010-08-18 at 20:02 +1000, Austin Lund wrote:
> On 18 August 2010 18:34, Hans Leidekker  wrote:
> > On Wed, 2010-08-18 at 10:14 +1000, Austin Lund wrote:
> > > #define MAGIC_CRYPTPROV 0xA39E741F
> > > +#define MAGIC_CRYPTKEY 0xA39E741F
> > > +#define MAGIC_CRYPTHASH 0xA39E741F
> >
> > The app might pass a crypto handle of the wrong type, so it would be
> > better to use different magic values.
>
> Are there any rules to these magic values?  Why was 0xA39E741F chosen?

They are often built from four character ascii strings to help find out
where the structures come from. I don't know why this one was chosen
but I guess you could use something like 0xA39E741E and 0xA39E741D.