Patent ID: 8482378

Claim:
A system operable to control access to different physical spaces, each space being provided with an electrical locking device, with the aid of a programmable, mobile unit, said system comprising: an authority means operable to issue access rights connected to said programmable, mobile unit in the form of an authorizing data (AD), the authorizing data (AD) being sent to an authorization means connected to said authority means and being operable to generate an alphanumerical key for said programmable, mobile unit and send said alphanumerical key and a unique identifier of said mobile unit to an operator, the operator being connected to said authorization means and being operable to send said alphanumerical key to said mobile unit identified by said unique identifier, said electrical locking device and said mobile unit using an authentication protocol with said alphanumerical key to authenticate each other, said mobile unit, if said mobile unit and said electrical locking device have been authenticated, sending said authorizing data (AD) to said electrical locking device, and if said authorizing data (AD) comprises an identifier of said electrical locking device, said mobile unit is able to open said electrical locking device with the aid of a communication means comprised in said mobile unit for communication in the near field, said unique identifier of said mobile unit being a number, and said authorizing data (AD) comprises an identification (ID 1 ; . . . ; ID n ) of each of said electrical locking device which said mobile unit should be able to open, said alphanumerical key being an asymmetric key pair (privP, pubP), said authorization means also being operable to generate said asymmetric key pair (privP, pubP), a certificate (certP), and an authorizing data (AD) electronically signed by said authorization means private key (privA), (Sign privA (AD)) for said mobile unit, and to send said authorizing data (AD), said private key (privP) of said mobile unit, said certificate (certP), said public key (pubA) of said authorization means, said authorization data electronically signed by said authorization means private key (Sign privA (AD)), and said number of said mobile unit to said operator, said electrical locking device communicating, during access control and management of access to said electrical locking device, only with said mobile unit.