Different output, same username and password

I was wondering why even for the same username and the same password, htpasswd outputs a new hash everytime? I tried finding an answer开发者_如何学JAVA to this question, but couldn't.

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The passwords generated by "htpasswd" use a random salt, to make it harder to guess. It also means that pre-crypted dictionaries for attacks have to be much larger since they have to crypt every possible password with every possible salt.

htpasswd uses crypt(3) behind the scenes.

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Here is a tip for you, when generating secret keys or strings, use a one_way_hash( salt + current time), these are, if not impossible, hard to crack. I normally employ this to create tokens or session keys.