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Created February 17, 2014 01:39
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A slight modification of Graham King's darkcoding credit card generator.
#!/usr/bin/env python
"""
gencc: A simple program to generate credit card numbers that pass the MOD 10 check
(Luhn formula).
Useful for testing e-commerce sites during development.
Copyright 2003 Graham King
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
from random import Random
from argparse import ArgumentParser, RawDescriptionHelpFormatter
import sys
import copy
generator = Random()
generator.seed() # Seed from current time
visaPrefixList = [ ['4', '5', '3', '9'],
['4', '5', '5', '6'],
['4', '9', '1', '6'],
['4', '5', '3', '2'],
['4', '9', '2', '9'],
['4', '0', '2', '4', '0', '0', '7', '1'],
['4', '4', '8', '6'],
['4', '7', '1', '6'],
['4'] ]
mastercardPrefixList = [ ['5', '1'],
['5', '2'],
['5', '3'],
['5', '4'],
['5', '5'] ]
amexPrefixList = [ ['3', '4'],
['3', '7'] ]
discoverPrefixList = [ ['6', '0', '1', '1'] ]
dinersPrefixList = [ ['3', '0', '0'],
['3', '0', '1'],
['3', '0', '2'],
['3', '0', '3'],
['3', '6'],
['3', '8'] ]
enRoutePrefixList = [ ['2', '0', '1', '4'],
['2', '1', '4', '9'] ]
jcbPrefixList16 = [ ['3', '0', '8', '8'],
['3', '0', '9', '6'],
['3', '1', '1', '2'],
['3', '1', '5', '8'],
['3', '3', '3', '7'],
['3', '5', '2', '8'] ]
jcbPrefixList15 = [ ['2', '1', '0', '0'],
['1', '8', '0', '0'] ]
voyagerPrefixList = [ ['8', '6', '9', '9'] ]
"""
'prefix' is the start of the CC number as a string, any number of digits.
'length' is the length of the CC number to generate. Typically 13 or 16
"""
def completed_number(prefix, length):
ccnumber = prefix
# generate digits
while len(ccnumber) < (length - 1):
digit = generator.choice(['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'])
ccnumber.append(digit)
# Calculate sum
sum = 0
pos = 0
reversedCCnumber = []
reversedCCnumber.extend(ccnumber)
reversedCCnumber.reverse()
while pos < length - 1:
odd = int( reversedCCnumber[pos] ) * 2
if odd > 9:
odd -= 9
sum += odd
if pos != (length - 2):
sum += int( reversedCCnumber[pos+1] )
pos += 2
# Calculate check digit
checkdigit = ((sum / 10 + 1) * 10 - sum) % 10
ccnumber.append( str(checkdigit) )
return ''.join(ccnumber)
def credit_card_number(generator, prefixList, length, howMany):
result = []
for i in range(howMany):
ccnumber = copy.copy( generator.choice(prefixList) )
result.append( completed_number(ccnumber, length) )
return result
def output(title, numbers):
result = []
result.append(title)
result.append( '-' * len(title) )
result.append( '\n'.join(numbers) )
result.append( '' )
return '\n'.join(result)
# Major cards
def major(generator):
mastercard = credit_card_number(generator, mastercardPrefixList, 16, 10)
print output("Mastercard", mastercard)
visa16 = credit_card_number(generator, visaPrefixList, 16, 10)
print output("VISA 16 digit", visa16)
visa13 = credit_card_number(generator, visaPrefixList, 13, 5)
print output("VISA 13 digit", visa13)
amex = credit_card_number(generator, amexPrefixList, 15, 5)
print output("American Express", amex)
# Minor cards
def minor(generator):
discover = credit_card_number(generator, discoverPrefixList, 16, 3)
print output("Discover", discover)
diners = credit_card_number(generator, dinersPrefixList, 14, 3)
print output("Diners Club / Carte Blanche", diners)
enRoute = credit_card_number(generator, enRoutePrefixList, 15, 3)
print output("enRoute", enRoute)
jcb15 = credit_card_number(generator, jcbPrefixList15, 15, 3)
print output("JCB 15 digit", jcb15)
jcb16 = credit_card_number(generator, jcbPrefixList16, 16, 3)
print output("JCB 16 digit", jcb16)
voyager = credit_card_number(generator, voyagerPrefixList, 15, 3)
print output("Voyager", voyager)
def main():
parser = ArgumentParser(formatter_class=RawDescriptionHelpFormatter, description='''\
A simple program to generate credit card numbers that
pass the MOD 10 check (Luhn formula). Useful for
testing e-commerce sites during development. Provides
numbers for both major and minor credit cards.
Major Minor
----- -----
Visa Discover
Mastercard Diners
American Express enRoute
JCB
Voyager''')
parser.add_argument('cctype', nargs='?', type=str, default='all', help='''\
Specify the credit card type: major, minor or all.
default: %(default)s''')
args = parser.parse_args()
cc_type = args.cctype
print "\ndarkcoding credit card generator: \n"
if cc_type == 'major':
major(generator)
elif cc_type == 'minor':
minor(generator)
else:
major(generator)
minor(generator)
if __name__ == "__main__":
main()
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