1.3. we consider the long-term security of the advanced encryption standard (aes) with a key length of 128-bit with respect to exhaustive key-search attacks. aes is perhaps the most widely used symmetric cipher at this time. 1. assume that an attacker has a special purpose application specific integrated circuit (asic) which checks 5 · 108 keys per second, and she has a budget of $1 million. one asic costs $50, and we assume 100% overhead for integrating problems 25 the asic (manufacturing the printed circuit boards, power supply, cooling, how many asics can we run in parallel with the given budget? how long does an average key search take? r