ur computer computes the MD5 and they are compared to make sure it downloaded correctly</p></li>
<li><p>not reversible because when a file has more than 128 bits, won‚Äôt be 1-1 mapping</p></li>
<li><p>you can lookup a MD5 hash in a rainbow table - gives you what the password probably is based on the MD5 hash</p></li>
</ul>
</li>
<li><p>SHA (secure Hash algorithm) is much more secure</p>
<ul>
<li><p>generates hash up to 512 bits</p></li>
</ul>
</li>
</ul>
</li>
</ul>
</section>
</section>

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