<i>ctx</i> for signing using the algorithm given when the context was created using <a href="../man3/EVP_PKEY_CTX_new.html">EVP_PKEY_CTX_new(3)</a> or variants thereof. The algorithm is used to fetch a <b>EVP_SIGNATURE</b> method implicitly, see <a href="../man7/provider.html">&quot;Implicit fetch&quot; in provider(7)</a> for more information about implicit fetches.</p>

<p>EVP_PKEY_verify_recover_init_ex() is the same as EVP_PKEY_verify_recover_init() but additionally sets the passed parameters <i>params</