e parameters are missing in <b>from</b> or present in both <b>from</b> and <b>to</b> and mismatch. If the parameters in <b>from</b> and <b>to</b> are both present and match this function has no effect.</p>

<p>The function EVP_PKEY_parameters_eq() checks the parameters of keys <b>a</b> and <b>b</b> for equality.</p>

<p>The function EVP_PKEY_eq() checks the keys <b>a</b> and <b>b</b> for equality, including their parameters if they are available.</p>

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

<p>The main purpose of the fu