Procedure to ensure software use from a processing unit and storing a secret system for your application.

摘要

Procedure to ensure software use (2u) from a reconstitution unit (11u), comprising at least one reconstitution secret (Su), operating said logical software on a processing system usage data (3u) - a phase of generating modified data (d ''): - a sub-phase data creation, to establish, from generation software, original called data (D) associated with the software use (2u), - a sub-phase modification to ensure the determination of modified data (D '') from a generation secret (Sg) and at least a portion of the original data (D ) associated, - a stage of making available, to distribute a user software use (2u) and the associated modified dice (D ''), - and in an implementation phase in a system for using ( 3u) use software (2u) with the modified data (d '') associated In a sub-phase reconstruction of the original data: - for a user possessing a reconstitution unit (11u) comprising a reconstitution secret (Su) to choose by said processing system utilization data (3U ) of the modified data (D ''), for transferring the input parameter (P e) of processing system usage data (38) to the reconstitution unit (11u), to ensure determination said reconstitution unit (11u), using the processing system usage data, at least one output parameter (Ps) from the reconstitution secret (Su) and the input parameter (P e), for transferring the output parameter (Ps) of the reconstitution unit (11u) to the treatment system utilization data (3u) and to run on the system of data processing using at least one reconstitution function (Fu ) using at least two you output parameter (Ps) in order to obtain the original data (D), characterized in that it consists of * allow a user who lacks the reconstitution unit (11u), use the software usage (2u) with support data processing system utilization, perhaps with changed data.