úÎOC    0Encapsulates the three tuning parameters to the   function: N,  r and p7. The parameters affect running time and memory usage:  Memory usage is approximately 128*r*N bytes. Note that the   function takes log_2(N)$ as a parameter. As an example, the    " log_2(N) = 14, r = 8, and p = 1lead to   using 128 * 8 * 2^14 = 16M bytes of memory.  Running time is proportional to all of N, r and p . However  pC only as an insignificant influence on memory usage an can thus be # used to tune the running time of  . Constructor function for the  data type log_2(N). Scrypt's N* parameter must be a power of two greater  than one, thus it'4s logarithm to base two must be greater than zero. The parameter r , an integer greater than zero. The parameter p , an integer greater than zero. r and p  must satisfy r * p < 2^30. Returns + the parameter object for valid arguments,  otherwise . 7Default parameters as recommended in the scrypt paper:   N = 2^14, r = 8, p = 1Equivalent to  ( 14 8 1). !Reads a 32-byte random salt from /dev/urandom. HCalculates a 64-byte hash from the given password, salt and parameters.           scrypt-0.1 Crypto.Scrypt ScryptParamsPassHashSaltPassparams defaultParamsgetSaltscryptc_scryptParamslogNrpbufLenbase Data.MaybeJustNothingfromJust