Securing a transaction by means of a smart card and smart card
AssigneeIdemia France
InventorsFrancis Chamberot, Arezki Rezzeli
Life of this patent
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Abstract
Disclosed is a method of managing a smart card configured for securing a transaction with an external device via a card reader, the method including the following steps: incrementing at least one command counter of commands received by the smart card during a transaction; and depending on the current value of the at least one counter and a command profile, implementation of a smart card management command.
Claims19
A method of managing a smart card configured for securing a transaction with an external device via a card reader, the method comprising the following steps:
- incrementing (E32) at least one command counter of commands received by the smart card during a transaction;
- and
- depending on a current value of said at least one counter and a command profile, implementing (E36) a smart card management command,
- wherein the step of incrementing implements multiple counters, each counter being associated with a command of a given type from a plurality of types of commands received by the smart card during the transaction.
A smart card configured for securing a transaction with an external device via a card reader, the smart card comprising a secure element configured for implementing the following steps:
- incrementing at least one command counter of commands received by the smart card during a transaction;
- and
- depending on a current value of said at least one counter and a command profile, implementing a smart card management command,
- wherein the step of incrementing implements multiple counters, each counter being associated with a command of a given type from a plurality of types of commands received by the smart card during the transaction.
A method of managing a smart card configured for securing a transaction with an external device via a card reader, the method comprising the following steps:
- incrementing at least one command counter of commands received by the smart card during a transaction, wherein all the commands received by the smart card during the transaction are counted;
- writing each command received by the smart card during the transaction into a dedicated memory register;
- and
- depending on a current value of said at least one counter and a command profile, implementing a smart card management command.
Dependencies are inferred from the claim text.