Re: Credit Card Validation
On 11/28/01, Jim McAtee penned: >Can anyone point me toward an authoritative source for the algorithms used >to validate credit card numbers and to identify card types based on the card >number? There are numerouse code examples to be found on the web, in >various languages (but with significant differences in both the checksum >validation and in the card identification). I'd like to find a source that >I can have a little more confidence in. Not sure about the algorithm, but here is what I use the check the card type. Card number does not match card type. -- Bud Schneehagen - Tropical Web Creations _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ ColdFusion Solutions / eCommerce Development [EMAIL PROTECTED] http://www.twcreations.com/ ~~ Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Credit Card Validation
CyberCash (www.cybercash.com) used to have references on their site --- you might check there to find what you're looking for. Regards, Joel Parramore > -Original Message- > From: Jim McAtee [mailto:[EMAIL PROTECTED]] > Sent: Thursday, November 29, 2001 12:03 AM > To: CF-Talk > Subject: Re: Credit Card Validation > > > Lee, > > Thanks. I've come across similar tables. Trouble is each of > them contains > one or two more prefixes than the last one. For example, I've > also seen the > prefix 38 listed for Diners Club. Obviously prefixes are being added, > albeit slowly, as needed. If I'd relied on the first table I came across, > published maybe two or three years ago (Who knows when - it was on some > developer's website without a date), then I might be rejecting cards that > were issued in the last couple of years. > > I've got the Luhn mod-10 checksum algorithm implemented in both JavaScript > and CFScript. I've also come across mention of a "check digit" (rightmost > digit) and another algorithm to do a checksum against this digit. Perhaps > it's just an alternative way of doing the mod-10 checksum. I haven't > examined it that closely. > > What I'm really looking for is a more authoritative source for this > information. > > Jim > > > - Original Message - > From: "Lee Fuller" <[EMAIL PROTECTED]> > To: "CF-Talk" <[EMAIL PROTECTED]> > Sent: Wednesday, November 28, 2001 9:35 PM > Subject: RE: Credit Card Validation > > > > Actually, here's even more info... > > > > > > > > *CARD TYPES*PREFIX *WIDTH > > American Express 34, 3715 > > Diners Club300 to 305, 3614 > > Carte Blanche 3814 > > Discover 6011 16 > > EnRoute2014, 214915 > > JCB3 16 > > JCB2131, 180015 > > Master Card51 to 55 16 > > Visa 4 13, 16 > > > ~~ Get the mailserver that powers this list at http://www.coolfusion.com FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Credit Card Validation
Jim the long list Lee provided covers the majors... any second digit will be something under that program or some obscure card for some small chain store.. the major ones were covered in detail in Lee's message with the correct digit length... as for the checksum (3 digits) there is nothing I seem to know about it being programatically/numerically related to the account... prove me wrong :) -Original Message- From: Jim McAtee [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 29, 2001 00:03 To: CF-Talk Subject: Re: Credit Card Validation Lee, Thanks. I've come across similar tables. Trouble is each of them contains one or two more prefixes than the last one. For example, I've also seen the prefix 38 listed for Diners Club. Obviously prefixes are being added, albeit slowly, as needed. If I'd relied on the first table I came across, published maybe two or three years ago (Who knows when - it was on some developer's website without a date), then I might be rejecting cards that were issued in the last couple of years. I've got the Luhn mod-10 checksum algorithm implemented in both JavaScript and CFScript. I've also come across mention of a "check digit" (rightmost digit) and another algorithm to do a checksum against this digit. Perhaps it's just an alternative way of doing the mod-10 checksum. I haven't examined it that closely. What I'm really looking for is a more authoritative source for this information. Jim - Original Message - From: "Lee Fuller" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Wednesday, November 28, 2001 9:35 PM Subject: RE: Credit Card Validation > Actually, here's even more info... > > > > *CARD TYPES*PREFIX *WIDTH > American Express 34, 3715 > Diners Club300 to 305, 3614 > Carte Blanche 3814 > Discover 6011 16 > EnRoute2014, 214915 > JCB3 16 > JCB2131, 180015 > Master Card51 to 55 16 > Visa 4 13, 16 > ~~ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Credit Card Validation
Agreed. But not sure you're going to find it. And not sure you'll find anything that will cover all future possibilities. But if you do.. Don't hesitate to share with all of us! ;) Lee > -Original Message- > From: Jim McAtee [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, November 28, 2001 9:03 PM > To: CF-Talk > Subject: Re: Credit Card Validation > > > Lee, > > Thanks. I've come across similar tables. Trouble is each of > them contains one or two more prefixes than the last one. > For example, I've also seen the prefix 38 listed for Diners > Club. Obviously prefixes are being added, albeit slowly, as > needed. If I'd relied on the first table I came across, > published maybe two or three years ago (Who knows when - it > was on some developer's website without a date), then I might > be rejecting cards that were issued in the last couple of years. > > I've got the Luhn mod-10 checksum algorithm implemented in > both JavaScript and CFScript. I've also come across mention > of a "check digit" (rightmost > digit) and another algorithm to do a checksum against this > digit. Perhaps it's just an alternative way of doing the > mod-10 checksum. I haven't examined it that closely. > > What I'm really looking for is a more authoritative source > for this information. > > Jim > > > - Original Message - > From: "Lee Fuller" <[EMAIL PROTECTED]> > To: "CF-Talk" <[EMAIL PROTECTED]> > Sent: Wednesday, November 28, 2001 9:35 PM > Subject: RE: Credit Card Validation > > > > Actually, here's even more info... > > > > > > > > *CARD TYPES*PREFIX *WIDTH > > American Express 34, 3715 > > Diners Club300 to 305, 3614 > > Carte Blanche 3814 > > Discover 6011 16 > > EnRoute2014, 214915 > > JCB3 16 > > JCB2131, 180015 > > Master Card51 to 55 16 > > Visa 4 13, 16 > > > ~~ Get the mailserver that powers this list at http://www.coolfusion.com FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re: Credit Card Validation
Lee, Thanks. I've come across similar tables. Trouble is each of them contains one or two more prefixes than the last one. For example, I've also seen the prefix 38 listed for Diners Club. Obviously prefixes are being added, albeit slowly, as needed. If I'd relied on the first table I came across, published maybe two or three years ago (Who knows when - it was on some developer's website without a date), then I might be rejecting cards that were issued in the last couple of years. I've got the Luhn mod-10 checksum algorithm implemented in both JavaScript and CFScript. I've also come across mention of a "check digit" (rightmost digit) and another algorithm to do a checksum against this digit. Perhaps it's just an alternative way of doing the mod-10 checksum. I haven't examined it that closely. What I'm really looking for is a more authoritative source for this information. Jim - Original Message - From: "Lee Fuller" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Wednesday, November 28, 2001 9:35 PM Subject: RE: Credit Card Validation > Actually, here's even more info... > > > > *CARD TYPES*PREFIX *WIDTH > American Express 34, 3715 > Diners Club300 to 305, 3614 > Carte Blanche 3814 > Discover 6011 16 > EnRoute2014, 214915 > JCB3 16 > JCB2131, 180015 > Master Card51 to 55 16 > Visa 4 13, 16 > ~~ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Credit Card Validation
Kind of be littering don't you think? -Original Message- From: Paris Lundis [mailto:[EMAIL PROTECTED]] Sent: Wednesday, November 28, 2001 11:25 PM To: CF-Talk Subject: RE: Credit Card Validation Here's the deal: it is a mod-10 formula... based on the length... so on some it is odd digit math, others it is even... 3xxx - AMEX 4xxx - Visa 5xxx - MasterCard 6xxx - Discover the formula is widely available and hasn't changed in 20 years.. it is 2nd grade math -p -Original Message- From: Jim McAtee [mailto:[EMAIL PROTECTED]] Sent: Wednesday, November 28, 2001 23:16 To: CF-Talk Subject: Credit Card Validation Can anyone point me toward an authoritative source for the algorithms used to validate credit card numbers and to identify card types based on the card number? There are numerouse code examples to be found on the web, in various languages (but with significant differences in both the checksum validation and in the card identification). I'd like to find a source that I can have a little more confidence in. Thanks, Jim ~~ Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re: Credit Card Validation
On Wed, 28 Nov 2001 23:25:14 -0500, "Paris Lundis" <[EMAIL PROTECTED]> wrote: >Here's the deal: > >it is a mod-10 formula... based on the length... so on some it is odd digit >math, others it is even... > >3xxx - AMEX >4xxx - Visa >5xxx - MasterCard >6xxx - Discover > >the formula is widely available and hasn't changed in 20 years.. it is 2nd >grade math It's been ages since I wrote up and cf or javascript code for it but, to expand: I believe it was called the "lun"(?) algorithm. Basically it does NOT validate the credit card number -- you have to talk to a cc gateway for that. It's purpose was to generate a long number that was resistant to typos by data entry clerks. If you mistype a single digit in cc number there's a pretty good chance the lun alg will will report it's an invalid cc number. That's all all it does -- catch simple typos. --min ~~ Get the mailserver that powers this list at http://www.coolfusion.com FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Credit Card Validation
Actually, here's even more info... *CARD TYPES*PREFIX *WIDTH American Express 34, 3715 Diners Club300 to 305, 3614 Carte Blanche 3814 Discover 6011 16 EnRoute2014, 214915 JCB3 16 JCB2131, 180015 Master Card51 to 55 16 Visa 4 13, 16 ~~ Get the mailserver that powers this list at http://www.coolfusion.com FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Credit Card Validation
Jim, There are more than a few CF tags used for verifying that a card number is valid. Search the tag gallery for that. As for identifying card types, here's the key that I use: Starts with... Type 3 Amex / Diner's Club 4 Visa 5 Mastercard 6 Discover HTH Lee > -Original Message- > From: Jim McAtee [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, November 28, 2001 8:16 PM > To: CF-Talk > Subject: Credit Card Validation > > > Can anyone point me toward an authoritative source for the > algorithms used to validate credit card numbers and to > identify card types based on the card number? There are > numerouse code examples to be found on the web, in various > languages (but with significant differences in both the > checksum validation and in the card identification). I'd > like to find a source that I can have a little more confidence in. > > Thanks, > Jim > ~~ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Credit Card Validation
Here's the deal: it is a mod-10 formula... based on the length... so on some it is odd digit math, others it is even... 3xxx - AMEX 4xxx - Visa 5xxx - MasterCard 6xxx - Discover the formula is widely available and hasn't changed in 20 years.. it is 2nd grade math -p -Original Message- From: Jim McAtee [mailto:[EMAIL PROTECTED]] Sent: Wednesday, November 28, 2001 23:16 To: CF-Talk Subject: Credit Card Validation Can anyone point me toward an authoritative source for the algorithms used to validate credit card numbers and to identify card types based on the card number? There are numerouse code examples to be found on the web, in various languages (but with significant differences in both the checksum validation and in the card identification). I'd like to find a source that I can have a little more confidence in. Thanks, Jim ~~ Get the mailserver that powers this list at http://www.coolfusion.com FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re: Credit card validation service?
You may want to look at www.Charge.com They have a web based "console" that is in lieu of the hardwired terminals. Just a thought Steve - Original Message - From: "Ryan" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Wednesday, October 25, 2000 12:55 PM Subject: OT: Credit card validation service? > Anyone ever heard of a credit card validation service (via the web)? > I would like to be able to verify if a credit card is valid before > passing the email along to billing. > > I know I can validate the NUMBER, using mod10, but I would like to > pass some service the number, name on card, exp date, etc and see > if its valid, and maybe even see if a purchase of $XX would go through. > > Thanks for any info. > > Ryan > > -- -- > Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ > Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists or send a message with 'unsubscribe' in the body to [EMAIL PROTECTED] > > Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists or send a message with 'unsubscribe' in the body to [EMAIL PROTECTED]
RE: Credit card validation service?
There is authorized.net which I have been reviewing and seem good. -Original Message- From: Ryan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 25, 2000 3:56 PM To: CF-Talk Subject: OT: Credit card validation service? Anyone ever heard of a credit card validation service (via the web)? I would like to be able to verify if a credit card is valid before passing the email along to billing. I know I can validate the NUMBER, using mod10, but I would like to pass some service the number, name on card, exp date, etc and see if its valid, and maybe even see if a purchase of $XX would go through. Thanks for any info. Ryan Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists or send a message with 'unsubscribe' in the body to [EMAIL PROTECTED] Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists or send a message with 'unsubscribe' in the body to [EMAIL PROTECTED]
RE: Credit card validation service?
> Anyone ever heard of a credit card validation service (via the web)? > I would like to be able to verify if a credit card is valid before > passing the email along to billing. > > I know I can validate the NUMBER, using mod10, but I would like to > pass some service the number, name on card, exp date, etc and see > if its valid, and maybe even see if a purchase of $XX would go through. Any of the card validation services can do a "Pre-Authorization" transaction, which in effect validates that money is available, and puts a "hold" on it. Then, you just pass billing the CC number, exp date, and authorization number, and they do a "Force" transaction, completing the sale. This is done all the time by companies who don't ship product immediately... legally, you're not supposed to finalize the transaction until you ship. I think it was Buy.com that got into a big stink on this issue last year. Ron Allen Hornbaker President/CTO Humankind Systems, Inc. http://humankindsystems.com mailto:[EMAIL PROTECTED] Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists or send a message with 'unsubscribe' in the body to [EMAIL PROTECTED]
RE: credit card validation
http://www.digitalmayhem.com/code.php?action=cf&module=cccheck Michael J. Sheldon http://www.desertraven.com/ Make a fast friend, adopt a greyhound! -Original Message- From: Kiley Simpson [mailto:[EMAIL PROTECTED]] Sent: Thursday, August 17, 2000 09:56 To: [EMAIL PROTECTED] Subject: credit card validation Does anyone have an up to date credit card number validation tag? I don't need to verify funds or anything, I just have to see if the credit card (visa, mc, amex) is a potentially valid number. Thanks. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
RE: credit card validation
> Does anyone have an up to date credit card number validation > tag? I don't > need to verify funds or anything, I just have to see if the > credit card > (visa, mc, amex) is a potentially valid number. Check out CFFORM, with CFINPUT set to do CC validation. In other words, it's built-in to CF. -Ron -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
Re: credit card validation
If you wanted to use Javascript there is a Javascript validator at http://www.dejeu.com/web/tools/tech/js/forms/form_chkcard-f.asp -- Jamie Keane Programmer SolutionMasters, Inc. 9111 Monroe Rd., Suite 100 Charlotte, NC 28270 www.solutionmasters.com 704.563.5559 x 228 Voice 704.849.9291 Fax -Original Message- From: Kiley Simpson <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Thursday, August 17, 2000 1:10 PM Subject: credit card validation >Does anyone have an up to date credit card number validation tag? I don't >need to verify funds or anything, I just have to see if the credit card >(visa, mc, amex) is a potentially valid number. > >Thanks. >--- --- >Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ >To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
