issue2551253 - Modify password PBKDF2 method to use SHA512 Added new PBKDF2S5 using PBKDF2 with SHA512 rather than the original PBKDF2 which used SHA1. Currently changes to interfaces.py are required to use it. If we choose to adopt it, need to decide if mechanisms will be available via config.ini to choose methods and force migration.

#!/usr/bin/env python

# Roundup requires Python 2.7+ as mentioned in doc\installation.txt
from __future__ import print_function
import sys

VERSION_NEEDED = (2, 7)

if sys.version_info < VERSION_NEEDED:
    print("Content-Type: text/plain\n")
    print("Roundup requires Python %s.%s or newer." % VERSION_NEEDED)
    sys.exit(0)