StackOverflow2013

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plurals

PO
primarykey
Id
2288706
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-02-18T12:57:28.633
FavoriteCount
0
LastActivityDate
2010-02-18T12:57:28.633
LastEditDate
2017-05-23T11:53:17.133
LastEditorUserId
-1
OwnerUserId
141661
ParentId
2288448
PostTypeId
2
Score
15
ViewCount
0
LastEditorDisplayName
text
Body
Before you go much further you should take a look at <a href="https://www.pcisecuritystandards.org/" rel="nofollow noreferrer">PCI-DSS</a>, which governs exactly what processes you need to have in place to even consider storing encrypted card numbers. In short, you should seriously consider outsourcing to a 3rd party payment gateway. If once you've understood the consequences you do want to go ahead, then again - follow the PCI guidelines. For symmetric encryption of card numbers you probably want to use <a href="https://stackoverflow.com/questions/172486/what-pure-python-library-to-use-for-aes-256-encryption">AES</a>, and draw up very strict <a href="https://stackoverflow.com/questions/1583553/how-to-properly-do-private-key-management/1584586#1584586">key management policies</a>. If however you only want to store a partial card number, then PCI states you can store (at an absolute maximum) the first six and last four digits only. The first six digits are all you need to identify a card type. The last four digits you may deem necessary to help prevent issues where a customer has near identical card numbers. IMHO storing partial card numbers (in plain text) is what you want to do, and then outsource the handling of encryption, authorisation and settlement to a <a href="https://stackoverflow.com/questions/2022067/looking-for-a-payment-gateway">3rd party gateway</a>. The payment gateway will give you a unique token id for each card you pass to them, so that you can reference a unique card to perform re-authorisation or refunds etc.
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Title
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PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POpython: two way partial credit card storing encrytion
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USCommunity
UserOwnerUserId
1. USPaulG
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PostsAcceptedAnswerId
1. POpython: two way partial credit card storing encrytion
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1. VO
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 VTUpMod
2. VO
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3. VO
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1. This table or related slice is empty.

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