Package Proposal: Magnetic Stripe Card

When there is a card-present transaction with a financial transaction card, the card swipe device returns a string containing the data on the card's one, two, or three magnetic tracks. A client browser can capture the swipe string and post it to an application server, where it can be processed. I'm starting work on a PEAR class that takes such a string, parses it, verifies the various checksums, then makes the data components available. Roughly like this: class MagStripeCard extends PEAR { object MagStripeCard($string) {} // Does parse and checksums; // ...returns self or PEAR_Error. string getPAN() {} // primary account number string getName() {} // account holder name string getExpireMonth() {} // two characters string getExpireYear() {} // two characters string getServiceCode() {} // service code string getPVKI() {} // PIN Verification Key Indicator string getCVV() {} // Card Validation Value string getPVV() {} // PIN Verification Value // etc... } * References * * Magnetic Stripe Card Standards - Card Reading * http://www.magtek.com/documentation/public/99800004-1.pdf * * Application Note - Character Conversion * http://www.magtek.com/documentation/public/99875065-4.pdf -- Mitchell Perilstein mitch at enetis dot net www.enetis.net/~mitch