Protecting a software program against tampering

A device comprising a processor, a memory and communication circuits for connecting the processor to a remote server, the device being configured to:

• execute, by the processor, an executable code of a software program, the executable code comprising integrity check code sections;
• during execution of one of the integrity check code sections of the executable code, compute an integrity check result applied to a code segment of the executable code;
• transmit to a server a message containing the integrity check result and an identifier of the code segment;
• and
• when the integrity check result does not correspond to a reference result for the code segment in a genuine version of the software program, receive from the server a signal that prevents an operation of the software program from being executed by the processor.

A non-transitory computer-readable medium having code portions stored thereon, the code portions, when carried out by a computer, cause a computer to:

• execute an executable code of a software program, the executable code comprising integrity check code sections;
• during execution of one of the integrity check code sections of the executable code, compute an integrity check result applied to a code segment of the executable code;
• transmit, to a server, a message containing the integrity check result and an identifier of the code segment;
• and
• when the integrity check result does not correspond to a reference result for the code segment of a genuine version of the software program, receive, from the server, a signal that prevents an operation of the software program from being executed by the computer.