Add a second major or graduate early?

<p>I plan on graduating with a degree in CS, concentration in crypto and security, if scheduling works out, and only two classes in the summer, I should be able to graduate a semester early. </p>

<p>However if I add a second degree in Math, I should be able to finish the degree with that extra semester due to many overlaps.</p>

<p>In short, would adding a BS in Math to a BS in CS degree beneficial enough to take an extra semester of classes?</p>

<p>For cryptography, additional math courses, particularly in algebra and number theory, may be helpful.</p>