ass="literal-block">
crc32c((ip &amp; 0x0103070f1f3f7fff) | (r &lt;&lt; 61))
</pre>
<p><tt class="docutils literal">r</tt> is a random number in the range [0, 7]. The resulting integer,
representing the masked IP address is supposed to be big-endian before
hashed. The &quot;|&quot; operator means bit-wise OR.</p>
<p>The details of implementing this is to evaluate the expression, store the
result in a big-endian 64 bit integer and hash those 8 bytes with CRC32C.</p>
<p>The first (most significant) 21 bits of