Python随机生成信用卡卡号的实现方法

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Python随机生成信用卡卡号的实现方法 本文实例讲述了Python随机生成信用卡卡号的实现方法。分享给大家供大家参考。具体分析如下：

这段Python代码根据信用卡卡号产生规则随机生成信用卡卡号，是可以通过验证的，仅供学习参考，请不要用于非法用途，否则后果自负。

#!/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(generator.choice(range(0, 10)))

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(rnd, prefixList, length, howMany):

result = []

while len(result) < howMany:

ccnumber = copy.copy(rnd.choice(prefixList))

result.append(completed_number(ccnumber, length))

return resultdef output(title, numbers):

result = []

result.append(title)

result.append('-' * len(title))

result.append('\n'.join(numbers))

result.append('')

return '\n'.join(result)

#

# Main

#

generator = Random()

generator.seed() # 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))运行结果如下：

darkcoding credit card generatorMastercard

----------

5249241445603178

5474662131739768

5581517450441661

5588253309068355

5514774944030079

5122826749528287

5152966434002124

5268127987312292

5385676074198087

5330181839518097VISA 16 digit

-------------

4539503803848378

4716973052847436

4556149936260376

4486565514724761

4556309354978160

4486560485591158

4916213564870669

4486704671699934

4532839100193192

4486613519985266VISA 13 digit

-------------

4929905559973

4556870828321

4916868200216

4556189916056

4024007171180American Express

----------------

376197656730660

342421777432696

342896016604918

343458311286898

374543958196088Discover

--------

6011676180456692

6011298953567876

6011699666196053Diners Club / Carte Blanche

---------------------------

30066643308583

38302315481859

38251784096120enRoute

-------

214935400146170

201435309964331

201450317314858JCB

---

3506641780149880

3561856856065701

3508395818816022Voyager

-------

869984254736122

869938197246102

869921075232782希望本文所述对大家的Python程序设计有所帮助。

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