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Here In This Project We Are Going To Provide The At Most Security Since It Is Taking The SMART CARD As The First Authentication And Activates The GSM Modem For The Confirmation. If User Of Credit Card Is Valid Person, Then The User Will Get Confirmation Message From The Modem. If User Is Not A Valid Person There Will Be No Confirmation, Thus The User Of Credit Card Can’t Perform Any Transactions. Whenever User Inserts Smartcard Into The Reader, It Will Read The Information And Fetches To The Controller. As Soon As Controller Gets The Information From The Card Reader It Will Activates The GSM Modem For Confirmation. GSM Modem Replies To The Controller By Sending A SMS Through Network Paths Using AT Commands. After Getting Confirmation From The Modem User Will Perform Transactions.

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