OSSL_PKEY_PARAM_RSA_EXPONENT6
OSSL_PKEY_PARAM_RSA_EXPONENT6, OSSL_PARAM_UNSIGNED_INTEGER,
OSSL_PKEY_PARAM_RSA_EXPONENT6,
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT6, NULL, 0), \