Square, Inc.

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Afshin Rezayee

Max Joseph Guise

Michael Wells White

Andrew John Leiserson

Malcolm Smith

Kshitiz Vadera

Sergei Mosends

A wireless communication device such as a payment reader has a wireless communication interface and is able to establish wireless pairing with an interactive electronic device such as a merchant device running a point of sale application. In order to establish pairing, the wireless communication device accesses a passkey and encrypts the passkey. The encrypted passkey is transmitted to the interactive electronic device via the wireless communication interface, and the interactive electronic device sends the encrypted passkey to a pairing server. The pairing server decrypts the encrypted passkey and sends the decrypted passkey back to the interactive electronic device via a secure connection. The wireless communication device and the interactive electronic device establish wireless pairing based on the passkey and the decrypted passkey.

Server-assisted pairing for wireless communications

A transaction processing system includes a payment reader for processing payment transactions. The payment reader receives payment information from a payment interface. The payment information is processed based on firmware instructions that are stored in memory and executed by a processor. A first subset of the firmware instructions is associated with transaction processing modules. Each of the transaction processing modules comprise position independent code and are located in a distinct section of memory from a second subset of firmware instructions and the position independent code associated with each of the other of the transaction processing modules.

Modular firmware for transaction system

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Georgetown, Canada

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