sage_init.html">EVP_PKEY_sign_message_init(3)</a>.</p>

</dd>
</dl>

<h2 id="Signature-Parameters">Signature Parameters</h2>

<p>The following signature parameters can be set using EVP_PKEY_CTX_set_params(). This may be called after EVP_PKEY_sign_init() or EVP_PKEY_verify_init(), and before calling EVP_PKEY_sign() or EVP_PKEY_verify(). They may also be set using EVP_PKEY_sign_init_ex() or EVP_PKEY_verify_init_ex().</p>

<dl>

<dt id="digest-OSSL_SIGNATURE_PARAM_DIGEST-UTF8-string">&quot;digest&quot; (<b>OSS