Abstract: An electronic security system includes an electronic lock mechanism and an electronic key, each of which is provided with a microprocessor controller and a memory storing data including an ID code and encryption key codes. The electronic lock security system preferably includes an electronic lock including a hollow cylinder, an opening into the cylinder, a bolt movable through the opening between an extended position and a retracted position, a cam member within the cylinder, the cam member contacting the bolt to move the bolt to an unlocked position, a solenoid within the hollow cylinder, the solenoid being engageable with the cam member, an electronic lock circuit within the hollow cylinder, a plug connected to the solenoid for rotating the solenoid, the plug having a keyway for insertion of a key for rotating the plug. In addition, the system also includes an electronic key insertable within the keyway for communicating with the electronic lock circuit to operate the lock.

Abstract: An anti-tamper locking assembly for locking a position of a block, such as a locking bolt in an electronic lock, electrically moves a pin to engage or dis-engage the block. When dis-engaged, the block can be moved and access or the like can be made. The pin is selectively moved electronically in order to allow access, entry or the like. The pin can be moved with, e.g., a solenoid. The pin has an overhanging portion, or a head portion. In order to prevent an individual from forcing the pin into an un-locked position, the head portion operates in conjunction with at least one spring-arm member and a blocker which are fixed to the block to prevent a user from being able to strike the device with a hammer or the like to "temporarily" move the pin to a position allowing the block to be moved and access or the like to be made.