Json Web Keys again

[Angus Robertson - Magenta Systems Ltd]

> > I create an RSA JWK using EVP_PKEY_get1_RSA and RSA_get0_key, 
> > but this  does not work for RSA-PSS.
> 
> In what way does this not work?

error:0607907F:digital envelope routines: EVP_PKEY_get0_RSA:expecting
an rsa key

> I notice that 3.0 recently had the accessor RSA_get0_pss_params()
> added. Probably that should also have been backported to 1.1.1.

Others have asked for that here before, so please.  But I don't need it
for JWK. 

Angus