Ingenico Group

Jessica Royer

Jean-Christophe Pommaret

Mohammed Bellahcene

Christian Rolin

Jérôme Grandemenge

Laurent Muller

Jean-Roch Poligny

Vincent Gomes

Sébastien James

Sebastien James

Jérome Grandemenge

A method for the secured recording of data, implemented in a data-recording device having a first non-secured memory and a second secured memory, is disclosed. The method has the steps of: obtaining a derived key corresponding to the data in the second memory from a root key recorded in the second memory; encrypting data using the derived key, delivering encrypted data; recording the encrypted data in the first memory; determining a hash imprint of said data; recording said hash imprint in a hash file recorded in the first memory; recording a general hash imprint, representing the content of the hash file comprising said hash imprint, in the second memory; and eliminating the data in the second memory.

Method for the secured recording of data, corresponding device and program

A method is provided for multiplexing messages exchanged between a payment terminal and a communication terminal via a connection between the payment terminal and the communication terminal using the iPod Accessory Protocol, iAP. The method includes: an initialization step of initializing an external communication interface with the communication terminal, a first transmission step of transmitting, to the communication terminal, a request for creation of remote virtual channels via the external communication interface; a creation step of creating, within the payment terminal, local virtual channels corresponding to the remote virtual channels; and a second transmission step of transmitting data frames associated with the local virtual channels via the external communication interface.

Message multiplexing method, device and corresponding program

Growing community of inventors

Valence, France

Jessica Royer