makepasswd

#!/usr/bin/python

# By William Stein, January, 2014.

import os, random, string, sys, time

alpha = string.lowercase + string.digits

if len(sys.argv) > 1 and sys.argv[1] == '-q':
    quiet = True
    del sys.argv[0]
else:
    quiet = False

if len(sys.argv) == 1:
    n = 14
else:
    n = int(sys.argv[1])

if len(sys.argv) >= 3:
    k = int(sys.argv[2])
else:
    k = 1

for i in range(k):
    gps = 1e15  # current 25 GPU cluster record is 3e11, so govt level GPU cluster would be easily 1000 times that.
    #gps = 3e11
    crack = len(alpha)**n / gps / 3600. / 24.
    if not quiet:
        print("crack time: %.5f days" % crack)

    passwd = ''.join([random.choice(alpha) for _ in range(n)])

    date = time.strftime("%Y-%m-%d")
    if not quiet:
        print("password-%s: %s" % (date, passwd))
    else:
        sys.stdout.write(passwd)