d <b>iqmp</b> parameters can be obtained and set with RSA_get0_crt_params() and RSA_set0_crt_params().</p>

<p>For RSA_get0_key(), RSA_get0_factors(), and RSA_get0_crt_params(), NULL value BIGNUM ** output parameters are permitted. The functions ignore NULL parameters but return values for other, non-NULL, parameters.</p>

<p>For multi-prime RSA, RSA_get0_multi_prime_factors() and RSA_get0_multi_prime_params() can be used to obtain other primes and related CRT parameters. The return values are stored in an 