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Jun 1 at 8:37 answer added Guanyuming He timeline score: 2
Apr 16, 2016 at 21:15 history tweeted twitter.com/StackCrypto/status/721447000219262977
Apr 15, 2016 at 9:38 answer added Maarten Bodewes timeline score: 11
Apr 15, 2016 at 5:23 comment added fgrieu Hints: brute force attack is trying keys, until finding one that matches. We can try them by increasing order. Trying involves one encryption with the key tried, and then a comparison of comparably small cost, and (if there's a match, that is, rarely) some confirmation operation. If a key has $b$ bits, how many possible keys are there? What's the time to try them all at a rate of $r$ keys per second? For the average time, you can compute the average of the exact time over all possible key values, or use a well-known approximation.
Apr 15, 2016 at 0:47 history edited Richie Frame CC BY-SA 3.0
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Apr 15, 2016 at 0:39 review First posts
Apr 15, 2016 at 11:33
Apr 15, 2016 at 0:36 history asked Scott M CC BY-SA 3.0