r computing the <b>SSHKDF</b> KDF through the <b>EVP_KDF</b> API.</p>

<p>The EVP_KDF-SSHKDF algorithm implements the SSHKDF key derivation function. It is defined in RFC 4253, section 7.2 and is used by SSH to derive IVs, encryption keys and integrity keys. Five inputs are required to perform key derivation: The hashing function (for example SHA256), the Initial Key, the Exchange Hash, the Session ID, and the derivation key type.</p>

<h2 id="Identity">Identity</h2>

<p>&quot;SSHKDF&quot; is the name for t