-1
votes
1answer
75 views

PRF and hash functions

Is there a difference between PRF and a hash function? example: Creation of a secret key is using PRF and creating a secret key is using hash function.
6
votes
1answer
242 views

Security of KDF1 and KDF2 (hash based KDF's)

It's still common to come across implementations of KDF1 and KDF2. Basically these are KDF's that simply derive multiple keys from the key seed and a counter: $K_i = KDF(K_{master}, i) = H(K_{master} ...
1
vote
3answers
508 views

Hash function based on pseudorandom functions and security

Are there hash functions that make use of pseudorandom functions. Precisely, I'm looking for a specification of a hash function based on PRF (and based on the security of such a primitive).