Tamper-Proof and Reusable High Security Seal

1) A high security seal reusable indefinitely, making it possible to detect and prove its opening and its re-use, by the integration of a device allowing the uncontrolled evolution of its characteristic authenticating at each change of state i.e. at the time of the passage of the closed position to the open (FIG. 1A) cancelling the preceding authenticating characteristic and of the open to closed position (FIG. 1B) restoring new authenticating characteristics thanks to the chaotic self-generation of new authenticating characteristics in 15, 16, 17 caused by the aforementioned change of state;

• each authenticating characteristic 15, 16, 17 is stored in a protected reference memory in order to prove an opening or attempt at opening of the aforesaid seal, characterized in that the authenticating characteristics 15, 16, 17 are the result of the action of two authenticators 1, 2 unique and nonreproducible with the aforementioned authenticators acting separately in an unstable manner for, at least one of them, when the seal is the unblocked or opened position (FIG. 1A) and acting jointly in a stable way when the seal is in closed and blocked position (FIG. 1B) making it possible to create a new code or signature in the data base.