Question
Assume a cryptographic algorithm in which the performance for the good guys (the ones that know the key) grows linearly with the length of the
Assume a cryptographic algorithm in which the performance for the good guys (the ones that know the key) grows linearly with the length of the key. Additionally, assume the only way to break the encryption is a brute-force attack using all possible keys. Suppose the performance for the good guys is adequate (e.g., encryption and decryption are as fast as the bits can be transmitted over the wire) at a given key size. Then suppose advances in computer technology make computers twice as fast. Given that both the good guys and the bad guys obtain computers that are twice as fast, does this advancement in computer speed work to the advantage of the good guys, the bad guys, or does it not make any difference? Your response needs to include a justification with citations. (Hint: In a complete response, there are three primary cases to consider with differing outcomes for the stakeholders.)
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