Hash Digest

Updated 24 Jul 2026

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def
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  the output of a hashing algorithm — a seemingly random, fixed-length string of letters and numbers, unique to the specific input that produced it
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properties
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  any change to the input, however small (e.g., one character), produces a completely different digest
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  the same input always produces the same digest
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challenge
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  a hashing algorithm has to be able to represent a practically infinite range of possible inputs — all data that has existed, exists, or ever will exist — using a finite-length digest
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related
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  Hashing
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  Collision (Hashing)

Linked references 5