hing is permitted. This retains compatibility with previous versions of OpenSSL.</p>

</dd>
<dt id="Level-1"><b>Level 1</b></dt>
<dd>

<p>The security level corresponds to a minimum of 80 bits of security. Any parameters offering below 80 bits of security are excluded. As a result RSA, DSA and DH keys shorter than 1024 bits and ECC keys shorter than 160 bits are prohibited. Any cipher suite using MD5 for the MAC is also prohibited. Any cipher suites using CCM with a 64 bit authentication tag are prohibited.