s a streaming filter BIO chain based on <b>cms</b>. The output of the filter is written to <b>out</b>. Any data written to the chain is automatically translated to a BER format CMS structure of the appropriate type.</p>

<h1 id="NOTES">NOTES</h1>

<p>The chain returned by this function behaves like a standard filter BIO. It supports non blocking I/O. Content is processed and streamed on the fly and not all held in memory at once: so it is possible to encode very large structures. After all content has been 