Is there any x for which SHA1(x) equals x?

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北荒
北荒 2021-01-11 18:06

Is there an x where SHA1(x) == x? I\'m looking for a proof or a strong argument against it.

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  •  不思量自难忘°
    2021-01-11 18:49

    The same arguments apply here as for the question Is there an MD5 fixed point? I.e. for a randomly chosen function it is about 63%.

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