y. See <a href="../man3/BN_security_bits.html">BN_security_bits(3)</a>.</p>

<h1 id="RETURN-VALUES">RETURN VALUES</h1>

<p>DH_bits() returns the number of bits in the key, or -1 if <b>dh</b> doesn&#39;t hold any key parameters.</p>

<p>DH_size() returns the prime size of Diffie-Hellman in bytes, or -1 if <b>dh</b> doesn&#39;t hold any key parameters.</p>

<p>DH_security_bits() returns the number of security bits, or -1 if <b>dh</b> doesn&#39;t hold any key parameters.</p>

<h1 id="SEE-ALSO">SEE ALSO</h1>

<