OpenSSL provider replacement for ENGINE_load_private_key

[Graham Leggett]

On 13 Dec 2021, at 12:15, Tomas Mraz <tomas at openssl.org> wrote:

> One option would be for a provider to provide provider-storemgmt
> implementation to load a key from its special URI. You'd then use
> OSSL_STORE from the application to load a private key from that special
> URI.
> 
> Another, rather simplistic, approach would be to use the
> EVP_PKEY_fromdata() function. In that case you'd have to know what the
> key algorithm are you using. You'd then use EVP_PKEY_CTX_new_from_name
> with query properties to include "provider=your_provider" and the
> params used with EVP_PKEY_fromdata() would contain just the special id
> parameter that the provider would use to identify the private key from
> the device.

The specific example is for PKCS11.

Is there a PKCS11 provider available to be used?

Regards,
Graham
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