#!/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)
