To level being the manner which offers the access which is controlled to the function of desire with the system which includes

摘要

a method and apparatus for providing controlled access secure against (F1, F2) one or more functions in the (400) electronic system with (F1, F2) function with multiple access requests different. According to the results of the first authentication process using (PK1, PK2) public key corresponding to the (F1, F2) the desired function becomes operable (F1, F2) the desired function, function to the (F1, F2) access, the second authentication process using the calculated second as a result of random challenges made by (400) system, a private session key external entity with respect to (270) during the first authentication process is authorized. Also, by enabling access to the (400) system with the correct access level only (270) is provided and against attack by eavesdroppers aggressive The passive entities with authentication that additional protection is received .