p>CMS_verify() returns 1 for a successful verification and 0 if an error occurred.</p>

<p>CMS_SignedData_verify() returns a memory BIO containing the verified content, or NULL on error.</p>

<p>CMS_get0_signers() returns all signers or NULL if an error occurred.</p>

<p>The error can be obtained from <a href="../man3/ERR_get_error.html">ERR_get_error(3)</a>.</p>

<h1 id="BUGS">BUGS</h1>

<p>The trusted certificate store is not searched for the signing certificate. This is primarily due to the inadequacies 