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type difficulty = {
mem_limit : int64;
The amount of memory used by the algorithm. The more memory the better.
*)ops_limit : int;
The number of passes of the algorithm over the memory. The more passes the better, to be adjusted to the type of application.
*)}
Parameters of the primitive
algorithm used to derive secret keys and hash passwords. This algorithm generates data (the secret key or the hash) from a human chosen password and a salt using a time and memory consuming algorithm to prevent bruteforce attacks.
val interactive : difficulty
The base line of difficulty, for online, interactive applications. Currently 3 passes over 32MiB.
val moderate : difficulty
Currently 6 passes and 128MiB.
val sensitive : difficulty
For highly sensitive data and non-interactive operations. Currently 8 passes over 512MiB. Takes about 3.5 seconds on a 2.8 Ghz Core i7 CPU.
val wipe_password : password -> unit
wipe_password pw
overwrites pw
with zeroes.
val random_salt : unit -> salt
random_salt ()
generates a random salt.
val salt_of_bytes : Bytes.t -> salt
salt_of_bytes b
creates a salt out of bytes b
.
module type S = sig ... end