I am looking for a one-way hash in hive. Seems like there is already a hash function - hash(a1[, a2...])
What kind of hash function is this? Is this a one-way hash?
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Can you cite a hashing algorithm that is not, by definition, a one-way function? Cf. Wikipedia page https://en.wikipedia.org/wiki/Hash_function (especially the illustration of a _collision_ on the upper right) – Samson Scharfrichter Nov 10 '17 at 23:27
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Duplicate of https://stackoverflow.com/questions/42138612/calculate-hash-without-using-exisiting-hash-fuction-in-hive – Samson Scharfrichter Nov 10 '17 at 23:30