ted with <i>ctx</i> is <i>keytype</i>.</p>

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

<h2 id="On-EVP_PKEY_CTX">On <b>EVP_PKEY_CTX</b></h2>

<p>The <b>EVP_PKEY_CTX</b> structure is an opaque public key algorithm context used by the OpenSSL high-level public key API. Contexts <b>MUST NOT</b> be shared between threads: that is it is not permissible to use the same context simultaneously in two threads.</p>

<h2 id="On-Key-Types">On Key Types</h2>

<p>We mention &quot;key type&quot; in this manual, which is the same as &quot;