Some Shuffling Required

"I'm going to need about 600 bits of entropy for this. Can you go the store and pick up some playing cards for me? Let's see, six hundred divided by log-base-two fifty-two-factorial—yes, three packs should be enough."

(Later, opening them ...)

"What the—!?"

2 thoughts on “Some Shuffling Required

  1. log(52!)/log(2) = ~225 bits per fully shuffled deck. Remember, you want the log of the number of possibilities, which is not 52.

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