Distributed File System | prof. Giovanni Chiola | ![]() |
One-way functions that map documents of arbitrary length to predefined size "fingerprints" (128 or 160 bit). | ||
No algorithm is known to restore the document given its fingerprint. | ||
The fingerprint value is uniformly distributed over the whole range. | ||
The probability that two different documents generate the same fingerprint is negligible. | ||
The probability that two similar but not identical documents generate similar fingerprint values is negligible. | ||
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