Exporting data from a provider owned domainparams or key is quite an
ordeal, with having to figure out what parameter keys an
implementation supports, call the export function a first time to find
out how large each parameter buffer must be, allocate the necessary
space for it, and call the export function again.
So how about letting the export function build up the key data params
and call back with that? This change implements exactly such a
mechanism.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10414)
This tests diverse internal KEYMGMT features. The current existing
test checks that evp_keymgmt_export_to_provider() passes the key data
correctly through two instances of the default provider, and that the
resulting numbers at the end match the initial numbers.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10190)
