Distribution of CRC checksums
<p>I am investigating about the collision propability of CRC checksums when they are used as a hashes. I know how to calculate the collision propability for hash algorithms that are evenly distributed (which means the chance to get all possible checksums for random input data is the same).</p>

<p>What I do not know (and I couldn't find in the web): </p>

<ol>
<li>Are CRC checksums generally [not] evenly distributed?</li>
<li>Does the distribution depend from the polynomial?</li>
<li>Does the distribution depend from the input data size?</li>
</ol>

<p>P.S.: I am aware of the restrictions when using CRCs as hashes, so this is not part of this question.</p>