ement-see-EVP_PKEY_derive-3">For key agreement see <a href="../man3/EVP_PKEY_derive.html">EVP_PKEY_derive(3)</a></dt>
<dd>

</dd>
<dt id="For-signing-and-verifying-see-EVP_PKEY_sign-3-EVP_PKEY_verify-3-and-EVP_PKEY_verify_recover-3-.-However-note-that-these-functions-do-not-perform-a-digest-of-the-data-to-be-signed.-Therefore-normally-you-would-use-the-EVP_DigestSignInit-3-functions-for-this-purpose">For signing and verifying see <a href="../man3/EVP_PKEY_sign.html">EVP_PKEY_sign(3)</a>, <a href="../man3/EV