of key this is. The value should be a string for a public key algorithm that supports raw private keys, i.e one of &quot;X25519&quot;, &quot;ED25519&quot;, &quot;X448&quot; or &quot;ED448&quot;. <i>key</i> points to the raw private key data for this <b>EVP_PKEY</b> which should be of length <i>keylen</i>. The length should be appropriate for the type of the key. The public key data will be automatically derived from the given private key data (if appropriate for the algorithm type).</p>

<p>EVP_PKEY_new_raw