Ingenico Group

Banks and Acquirers International Holding

Ingenico France

Compagnie Industrielle Et Financiere D'ingenierie Ingenico

Christian Rolin

Mohammed Bellahcene

Jessica Royer

Jean-Christophe Pommaret

Laurent Muller

Dominique Testu

Maxime Bernelas

A method for determining validity of a code of an application. The method is implemented within an electronic device having a processor, a non-secure memory and a secure memory. The method includes at least one iteration of: loading the application in the non-secure memory, delivering a current application code; determining a current footprint of the current application code; obtaining, within the secure memory, a reference footprint associated with the application; comparing the current footprint with the reference footprint; and when the current footprint is identical to the reference footprint, validating the current application code, including: executing an optimization process of the current application code, delivering an optimized application code; determining a post-optimization footprint of the optimized application code; and recording the post-optimization footprint in the secure memory as a new reference footprint associated with the application.

Method for determining a validity of an application code, corresponding device and computer program product

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

The invention relates to an electronic payment terminal () comprising a first USB connection port () comprising at least one first wire (D+&#x2033;) for data transfer. The payment terminal comprises, furthermore, a first resistor () linking the first wire to a first source (VDD) of a first potential and a switch () between the first wire and the first resistor or between the first resistor and the first source.

Data exchange between an electronic payment terminal and a maintenance tool through a USB link

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Guilherand-Granges, France

Christian Rolin