security/py-scrypt 0.9.4p0 OpenBSD

This is a set of Python bindings for the scrypt key derivation function.

Scrypt is useful when encrypting passwords as it is possible to specify a *minimum* amount of time to use when encrypting and decrypting. If, for example, a password takes 0.05 seconds to verify, a user won't notice the slight delay when signing in, but doing a brute force search of several billion passwords will take a considerable amount of time. This is in contrast to more traditional hash functions such as MD5 or the SHA family which can be implemented extremely fast on cheap hardware.