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Description | |||||

Implementation of Password Based Key Derivation Function, from RSA labs. See PKCS # 5 / RFC 2898 from rsa labs: and haskell cafe discussion on why password hashing is a good idea for web apps and a suggestion that this be implemented: http://www.ietf.org/rfc/rfc2898.txt http://groups.google.com/group/fa.haskell/browse_thread/thread/66c7aeeb6e47764a/b15d9d74d68c002c | |||||

Synopsis | |||||

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Documentation | |||||

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A reasonable default for rsa pbkdf2. pbkdf2 = pbkdf2' (prfSHA512,64) 5000 64 SHA512 outputs 64 bytes. At least 1000 iters is suggested by PKCS#5 (rsa link above). I chose 5000 because this takes my computer a little over a second to compute a simple key derivation (see t test function in source) Dklen of 64 seemed reasonable to me: if this is being stored in a database, doesn't take too much space. Computational barriers can be raised by increasing number of iters | |||||

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Password Based Key Derivation Function, from RSA labs. pbkdf2' (prf,hlen) cIters dklen (Password pass) (Salt salt) prf: pseudo random function hlen: length of prf output cIters: Number of iterations of prf dklen: Length of the derived key (hashed password) | |||||

Produced by Haddock version 2.6.0 |