Methods for providing a response to a command requesting the execution of a proactive command

A communication method comprising:

• receiving a first message of a Short Message Service containing a first command from a remote server, the first command requesting execution of a proactive command;
• decrypting the first message according to protocol SCP80, thereby extracting the first command;
• requesting the execution of the proactive command in order to obtain a response to the proactive command;
• transmitting a second message of the Short Message Service to the remote server, the second message indicating that the response to the proactive command has been obtained;
• receiving a third message of the Short Message Service, the third message containing a second command from the remote server, the second command requesting transmission of a response message determined as a function of the response;
• decrypting the third message according to the protocol SCP80, thereby extracting the second command;
• generating a response message as a function of the response;
• encrypting the response message according to the protocol SCP80, thereby generating a fourth message of the Short Message Service;
• and
• transmitting the fourth message to the remote server.

A communication method comprising:

• generating a first command, the first command requesting execution of a proactive command;
• encrypting the first command according to protocol SCP80, thereby generating a first message of a Short Message Service;
• transmitting the first message to a mobile device;
• receiving a second message of the Short Message Service from the mobile device, the second message indicating that a response to the proactive command has been obtained;
• generating a second command, the second command requesting transmission of a response message determined as a function of the response;
• encrypting the second command according to the protocol SCP80, thereby generating a third message of the Short Message Service;
• transmitting the third message to the mobile device;
• receiving a fourth message of the Short Message Service containing a response message from the mobile device, the response message containing data determined as a function of the response;
• and
• decrypting the fourth message according to the protocol SCP80, thereby extracting the response message.

A chip card comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
• receiving a first message of a Short Message Service containing a first command from a remote server, the first command requesting execution of a proactive command;
• decrypting the first message according to protocol SCP80, thereby extracting the first command;
• requesting the execution of the proactive command in order to obtain a response to the proactive command;
• transmitting a second message of the Short Message Service to the remote server, the second message indicating that the response to the proactive command has been obtained;
• receiving a third message of the Short Message Service, the third message containing a second command from the remote server, the second command requesting transmission of a response message determined as a function of the response;
• decrypting the third message according to the protocol SCP80, thereby extracting the second command;
• generating a response message as a function of the response;
• encrypting the response message according to the protocol SCP80, thereby generating a fourth message of the Short Message Service;
• and
• transmitting the fourth message to the remote server.