Re:Git's initial commit
by MichaelGG on Sunday November 23, 2014 @09:29PM
(#8650780)
The number of inputs before a likely collision is more on the order of 2^80. Which is still pretty large.
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True, the birthday paradox definitely makes it a lot more likely, but as you say the odds should still be too low.
This is comparable to the number of atoms in the universe. Pretty large! We will never see an accidental collision.
Not quite, atoms in the universe is in the range of 10^80, which is a bit less than 2^266.
On the other hand, 2^80 is "only" approx. 1.2 * 10^24. Still, good luck colliding with that without big effort.