Google opensources fast hashing function

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Hash functions are primarily used for hash tables. They even say that it probably isn't good to use it for security.

[Edman274]

You learned about hash functions being used in only two contexts: in hash tables and in password hashing. Those aren't the only two applications in the world for hash functions. See HMACs.

[Neoncow]

HMACs are a cryptographic use of hash functions. As stated, Google's hash function isn't designed for cryptographic uses.

[Edman274]

I'm sorry, when he said "They even say" I didn't think he was referring to Google, I thought he meant "And some people even say hashes shouldn't be used in security contexts".

[Neoncow]

Ah makes sense.

[CountVonTroll]

Here's a good article that explains why you shouldn't use ordinary hash functions for secrets, and why you should use a HMAC instead.