SHA-256 hash of null input?

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What is the SHA-256 hash if the input is null, i.e. an empty bitstring? (Not the hash of 0 or "0".)

Paŭlo Ebermann

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asked Jun 5, 2015 at 9:33

Geremia

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The result of SHA-256 of an empty string is:

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Accordingly to this and this

answered Jun 5, 2015 at 10:18

Ruggero

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$\begingroup$ Verified in Linux with e.g. sha256sum /dev/null and printf | sha256sum $\endgroup$
– mwfearnley
Jul 25, 2022 at 10:40

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