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Is there any way for a hacker to determine what type of hashing algorithm was used? Let's say a hacker got hold of a password database, can he know given a set of hashes which hashing algorithm was used to generate these?
Commented Apr 7, 2012 on
Hashes are a bit like fingerprints for data. A given hash uniquely represents a file, or any arbitrary collection of data. At least in theory. This is a 128-bit MD5 hash you're looking at above, so it can represent at most 2128 unique items, or 340 trillion trillion trillion. In reality the...
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