GOR *PKCS5_pbkdf2_set_ex(int iter, unsigned char *salt, int saltlen,
                                int prf_nid, int keylen,
                                OSSL_LIB_CTX *libctx);</code></pre>

<h1 id="DESCRIPTION">DESCRIPTION</h1>

<h2 id="Key-Derivation">Key Derivation</h2>

<p>PKCS5_PBE_keyivgen() and PKCS5_PBE_keyivgen_ex() take a password <i>pass</i> of length <i>passlen</i>, parameters <i>param</i> and a message digest function <i>md_type</i> and performs a key derivation according to PKCS#5 PBES1. T