Thank you Alan. That works great as a first level check for me. I'll still be doing more checks if this one doesn't find matches but it allows me to have a short circuit.
regards, Preet, in Auckland NZ On Wed, 18 Dec 2019 at 19:23, Alan Ingleby <alan.ingl...@gmail.com> wrote: > https://www.regextester.com/106873 > > Still using Regex, but so simple. > > On Wed, 18 Dec 2019 at 15:56, mike smith <meski...@gmail.com> wrote: > >> There's the odd number/arrangement that amex uses to check for as well >> >> On Wed, Dec 18, 2019, 16:14 Eddie de Bear <eddie.deb...@gmail.com> wrote: >> >>> Hi Preet, >>> >>> I always check when somebody mentions credit card processing.. >>> >>> Anyways, off the top of my head I don't know of any component that can >>> easily identify credit card info. I suspect your in for a world of pain >>> using Regex to identify potential card numbers and then a Luhn check to see >>> if it is actually a valid card number. >>> >>> From my bookmarks: >>> https://en.wikipedia.org/wiki/Luhn_algorithm >>> >>> https://stackoverflow.com/questions/21249670/implementing-luhn-algorithm-using-c-sharp >>> >>> Might be helpful.. >>> >>> Ed. >>> >>> On Wed, Dec 18, 2019 at 4:33 PM Preet Sangha <preetsan...@gmail.com> >>> wrote: >>> >>>> Hi Ed, >>>> >>>> Thanks for that. We are an large enterprise platform doing thousands of >>>> transactions via gateways - CC info is normally flowing through our code >>>> except in the most secure of ways - we are PCI compliant. However to be >>>> extra careful I'm trying to remove anything that looks like a known CC >>>> shape from logging. It's to prevent issues in case someone inadvertently >>>> stores CC in fields that they shouldn't. Yes there education but sometimes >>>> mistakes happen. >>>> >>>> regards, >>>> Preet, in Auckland NZ >>>> >>>> >>>> >>>> On Wed, 18 Dec 2019 at 16:57, <eddie.deb...@gmail.com> wrote: >>>> >>>>> Hi Preet, >>>>> >>>>> >>>>> >>>>> I don’t know of any libraries that handle this, but I do have a >>>>> question for you. >>>>> >>>>> >>>>> >>>>> Why are you validating credit card info? >>>>> >>>>> >>>>> >>>>> I ask this because if you are validating card info then you are >>>>> handling/processing card info. Any business handling credit card >>>>> information should have PCI-DSS compliance. >>>>> >>>>> >>>>> >>>>> Personally, I find it is much easier to use external providers (eway, >>>>> paypal et al) to handle the whole payment process, meaning your code never >>>>> needs to touch a credit card number and you never have to worry about >>>>> compliance, *security etc. >>>>> >>>>> >>>>> >>>>> Just a another random thought, YMMV. >>>>> >>>>> >>>>> >>>>> *Security of the card information >>>>> >>>>> >>>>> >>>>> Ed. >>>>> >>>>> >>>>> >>>>> *From:* ozdotnet-boun...@ozdotnet.com <ozdotnet-boun...@ozdotnet.com> *On >>>>> Behalf Of *Preet Sangha >>>>> *Sent:* Wednesday, 18 December 2019 2:41 PM >>>>> *To:* ozDotNet <ozdotnet@ozdotnet.com> >>>>> *Subject:* >>>>> >>>>> >>>>> >>>>> Would anyone know of any credit card validation/detection or similar >>>>> libraries that we may be able incorporate into our .net framework code >>>>> (preferably in nuget form) in order to eliminate our own hand coded regexs >>>>> please? >>>>> >>>>> >>>>> >>>>> Regards Preet >>>>> >>>>> >>>>> >>>> >>> >>> -- >>> *EDDIE DE BEAR* >>> Mob: 0417066315 >>> Messenger: eddie_deb...@hotmail.com >>> Skype: eddiedebear >>> >> > > -- > Alan Ingleby >
