age.</p>

</dd>
<dt id="ER-export-restriction">&quot;ER&quot;/&quot;export restriction&quot;</dt>
<dd>

<p>A negotiation not in compliance with export restrictions was detected; for example, attempting to transfer a 1024 bit ephemeral RSA key for the RSA_EXPORT handshake method. This message is always fatal.</p>

</dd>
<dt id="PV-protocol-version">&quot;PV&quot;/&quot;protocol version&quot;</dt>
<dd>

<p>The protocol version the client has attempted to negotiate is recognized, but not supported. (For exampl