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How secure is 256 bit security?

Why it was recommended

To comprehend how large a search space this is watch 3Blue1Brown's explanation

RecommendationAareyBaba · Original

What it covers

3Blue1Brown illustrates how enormous the 256-bit search space is, showing how infeasible it is to find a hash or key by guessing and checking. It is for a general viewer who does not plan to take a prerequisite first.

Video details

Channel
3Blue1Brown
Length
5 min 6 sec
Year
2017
Open on YouTube

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