PKEY key type checking purposes, <a href="../man3/EVP_PKEY_is_a.html">EVP_PKEY_is_a(3)</a> is more generic.</p>

<p>For purposes of retrieving the name of the <b>EVP_PKEY</b> the function <a href="../man3/EVP_PKEY_get0_type_name.html">EVP_PKEY_get0_type_name(3)</a> is more generally useful.</p>

<p>The keys returned from the functions EVP_PKEY_get0_RSA(), EVP_PKEY_get0_DSA(), EVP_PKEY_get0_DH() and EVP_PKEY_get0_EC_KEY() were changed to have a &quot;const&quot; return type in OpenSSL 3.0. As described above