System for secure payment over a wireless communication network
AssigneeiZettle Merchant Services AB
InventorStefan Lund
Life of this patent
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Abstract
A method of conducting secure electronic credit payments to a payment acquirer using a credit payment unit, comprising of a smart card, a portable card reader device and a mobile phone, and a payment server. The method is based on using a unique reader key in the card reader device to encrypt all the sensitive smart card information communicated to the payment server, and thus being able to use an unsecure mobile phone to communicate with the payment server. The payment server then completes the transaction with the payment acquirer over a secure line.
Claims14
A method of conducting electronic credit payments to a payment acquirer using a credit payment unit, comprising a smart card, card reader device and a mobile phone, and a payment server, said method comprising:
- initializing said credit payment unit by establishing communication between said smart card and said card reader device, and establishing communication between said card reader device and said mobile phone;
- starting a dedicated software application in said mobile phone;
- said software application establishing communication between said credit payment unit and said payment server using said mobile phone;
- said software application communicating a reader serial number stored in said card reader device via said mobile phone to said payment server;
- deriving a reader key, used in said card reader device for encrypting information, in said payment server based on said communicated reader serial number and a master reader key stored in said payment server;
- reading, in said card reader device, smart card information from said smart card, and encrypting said smart card information using said reader key;
- receiving user inputted payment details and a user inputted signature in said mobile phone;
- communicating, using said mobile phone, said encrypted smart card information from said card reader device, said payment details and said signature to said payment server;
- decrypting and verifying said smart card information in said payment server;
- and
- communicating said payment details from said payment server to said payment acquirer, and thereby completing an electronic credit payment.
A credit payment unit adapted to communicate with a payment server for making electronic credit payments, comprising:
- a smart card containing smart card information;
- a card reader device containing a unique reader serial number and a unique reader key, wherein said card reader device is adapted to read said smart card information and to encrypt said smart card information using said reader key;
- and
- a mobile phone comprising a dedicated software application adapted to setup the communication between said credit payment unit and said payment server, wherein said mobile phone is further adapted to read said reader serial number and said encrypted smart card information, wherein said mobile phone is further adapted to receive user inputted payment details and a user inputted signature, and wherein said mobile phone is further adapted to communicate said reader serial number, encrypted smart card information, payment details and signature to said payment server for completing a secure credit payment.
(canceled)
Dependencies are inferred from the claim text.