EVP_PKEY_private_check does not seem to work when no private key params are set

[sushshring]

********* STEPS ***********

• Create OSSL_PARAM_BLD_new() and push exponent and modulus BN params ONLY.
• Create an EVP_PKEY using EVP_PKEY_fromdata(...) and pass it params created using OSSL_PARAM_BLD_to_param(...).
• Call EVP_PKEY_private_check()

Expected behavior: EVP_PKEY_private_check should return an error.
Actual: EVP_PKEY_private_check returns 1 (success).

OpenSSL version: 3.5.0
SymCrypt provider version: default from AzureLinux3.0.

[mamckee]

RSA is missing OSSL_FUNC_KEYMGMT_VALIDATE interface. OpenSSL returns success for EVP_PKEY_private_check if the interface isn't found, so this error was not discovered earlier.

[qmuntal]

I'm implement a Java crypto provider that uses OpenSSL and also hit this issue.