This article example describes the implementation of Python randomly generated credit card number. Shared for your reference. Specific analysis is as follows:
This Python code randomly generates credit card numbers according to the credit card number generation rules, it is verifiable, it is only for study and reference, please do not use it for illegal purposes, otherwise you will be responsible for the consequences.
#!/usr/bin/python
"""
gencc: A simple program to generate credit card numbers that pass the
MOD 10 check (Luhn formula).
Usefull for testing e-commerce sites during development.
Copyright 2003-2012 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
"""
# Different naming convention, because translated from PHP
# pylint: disable=C0103
from random import Random
import copy
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']]
jcbPrefixList = [['3', '5']]
voyagerPrefixList = [['8', '6', '9', '9']]
def completed_number(prefix, length):
"""
'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
"""
ccnumber = prefix
# generate digits
while len(ccnumber) < (length - 1):
digit = str((range(0, 10)))
(digit)
# Calculate sum
sum = 0
pos = 0
reversedCCnumber = []
(ccnumber)
()
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
(str(checkdigit))
return ''.join(ccnumber)
def credit_card_number(rnd, prefixList, length, howMany):
result = []
while len(result) < howMany:
ccnumber = ((prefixList))
(completed_number(ccnumber, length))
return result
def output(title, numbers):
result = []
(title)
('-' * len(title))
('\n'.join(numbers))
('')
return '\n'.join(result)
#
# Main
#
generator = Random()
() # Seed from current time
print("darkcoding credit card generator\n")
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
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))
jcb = credit_card_number(generator, jcbPrefixList, 16, 3)
print(output("JCB", jcb))
voyager = credit_card_number(generator, voyagerPrefixList, 15, 3)
print(output("Voyager", voyager))
The results of the run are as follows:
darkcoding credit card generator Mastercard ---------- 5249241445603178 5474662131739768 5581517450441661 5588253309068355 5514774944030079 5122826749528287 5152966434002124 5268127987312292 5385676074198087 5330181839518097 VISA 16 digit ------------- 4539503803848378 4716973052847436 4556149936260376 4486565514724761 4556309354978160 4486560485591158 4916213564870669 4486704671699934 4532839100193192 4486613519985266 VISA 13 digit ------------- 4929905559973 4556870828321 4916868200216 4556189916056 4024007171180 American Express ---------------- 376197656730660 342421777432696 342896016604918 343458311286898 374543958196088 Discover -------- 6011676180456692 6011298953567876 6011699666196053 Diners Club / Carte Blanche --------------------------- 30066643308583 38302315481859 38251784096120 enRoute ------- 214935400146170 201435309964331 201450317314858 JCB --- 3506641780149880 3561856856065701 3508395818816022 Voyager ------- 869984254736122 869938197246102 869921075232782
I hope that what I have described in this article will help you in your Python programming.