EVP_PKEY_set1_RSA
EVP_PKEY_set1_RSA(pkey, rsa);
EVP_PKEY_set1_RSA(pkey, rsa);
EVP_PKEY_set1_RSA(pk, rsa);
if (!EVP_PKEY_set1_RSA(pkey, (RSA *)*pval))
EVP_PKEY_set1_RSA(ret, rsa);
if (!pk || !EVP_PKEY_set1_RSA(pk, (RSA *)x))
int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, struct rsa_st *key);
success = EVP_PKEY_set1_RSA(pkey, key->rsa);