What's the use of HMAC in PBKDF2?

Asked Dec 15 '19 at 18:09

Active Dec 15 '19 at 18:18

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As far as I know, PBKDF2 uses an underlying pseudorandom function in order to generate a hash (like SHA256) so as far I understood PBKDF2 is basically a hash function that uses an underlying function in order to generate a hash but what I don't understand is that what's the point of hmac here?

I expected to use something like PBKDF2WithSHA512 instead of PBKDF2WithHmacSHA512 and I really can't understand what's the point of HMAC.

edited Dec 15 '19 at 18:18

asked Dec 15 '19 at 18:09

peypey

2

I think these answers to this question What's the difference between PBKDF and SHA and why to use them together? might enlighten you. – kelalaka Dec 15 '19 at 18:41
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Does this answer your question? What's the difference between PBKDF and SHA and why use them together? – perror Dec 15 '19 at 23:45

What's the use of HMAC in PBKDF2?

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