Secure system for programming electronically controlled locking devices by means of encrypted acoustic accreditations

A secured system for controlling the opening of lock devices, comprising:

• at least one lock device provided with electronic circuits for the conditional control of locking/unlocking mechanical members based on previously defined access rights;
• a mobile phone at the disposal of a master-user;
• and
• a remote management site;
• the system being characterized in that:
• the remote management site comprises:
• a database of lock devices and authorized users with, for each lock device, an associated unique identifier and a list of authorized users with corresponding access right data;
• and
• a generator of accreditation data, the accreditations being encrypted acoustic accreditations in the form of single-use audio signals, adapted for allowing the programming of the lock devices with the access rights indexed in the database;
• the system comprises means for secured transmission of said accreditation data from the remote management site to the mobile phone of the master-user;
• the phone comprises an electroacoustic transducer capable of reproducing said acoustic accreditations;
• the lock device comprises:
• electroacoustic transducer capable of picking up the acoustic accreditations reproduced by the phone's transducer previously placed in the vicinity of the lock device;
• and
• means for recognizing, analyzing and authenticating the acoustic accreditations picked up by the transducer, and updating the access rights upon recognizing a compliant accreditation.