Method of sending data from a secure token to a distant server

1. A computer-implemented method, comprising the steps:

a secure token receives from an applicative server via an OTA server a first command requesting opening a proactive session, said first command being secured with a security layer provided by the OTA server, wherein the secure token is a hardware device that implements a universal integrated circuit card,

the secure token receives from the applicative server a second command, said second command requesting the sending of a response to said first command and being secured by the security layer provided by the OTA server, and

in response to receipt of the second command, an application embedded in the secure token builds a secured response packet comprising the response secured with the security layer provided by the OTA server and sends the secured response packet to the OTA server which in turn sends the response to the applicative server.

2. A method according to claim 1 , wherein the secure token sends to the applicative server an intermediate response to said first command, said intermediate response comprising a request for a time extension, said intermediate response being secured with the security layer provided by the OTA server.

3. A method according to claim 2 , wherein the request comprises a time extension expressed as a fixed duration, an indefinite duration or the occurrence of a specified event.

4. A method according to claim 1 , wherein the secure token sends to the applicative server a message indicating that the response can be retrieved.

5. A method according to claim 4 , wherein, said message is sent directly to the applicative server without using the security layer provided by the OTA server.

6. A secure token including instructions stored thereon that, when executed, cause said secure token to:

run, by an application of the secure token, a first command requesting opening a proactive session, said first command being initiated by an applicative server and secured with a security layer provided by an OTA server, wherein the application generates a response corresponding to the first command, wherein the secure token is a hardware device that implements a universal integrated circuit card,

handle a second command requesting the sending of the response, and

build a secured response packet comprising the response secured with the security layer provided by the OTA server and send the secured response packet to the OTA server in response to receipt of the second command.

7. A secure token according to claim 6 , wherein the secure token is configured to send to the applicative server an intermediate response to said first command, said intermediate response comprising a request for a time extension, said intermediate response being secured with the security layer provided by the OTA server.

8. A secure token according to claim 6 , wherein the secure token is configured to send to the applicative server a message indicating that the response can be retrieved.

9. A system including an applicative server and a secure token according to claim 6 , wherein the applicative server is configured to send the second command after an event and to get the response from the OTA server in response to sending of the second command.

10. A system according to claim 9 , wherein the event is selected from a set comprising the receipt of a message indicating that the response can be retrieved, a specific duration after the receipt of a request for a time extension and a predefined duration after the sending of the first command.