Anti-spying encrypted keyboard

Abstract

Disclosed is an anti-spying encrypted keyboard, particularly an anti-spying encrypted keyboard having an anti-spying detection protective system in multiple aspects. The anti-spying encrypted keyboard comprises a key panel and a main control board. The main control board includes a control circuit with self-destruct function. The control circuit is fixedly sealed on the back of the main control board by an anti-spying protective mechanism. The anti-spying protection mechanism is electrically connected with the control circuit. The anti-spying protection mechanism comprises: an anti-spying cover () having a bottom surface () and a side wall () extending perpendicularly along the edge thereof, the side wall () together with the bottom surface () forming a first cavity (); a rigid anti-spying circuit board () being placed inside the first cavity (), and a second cavity () being formed by a bottom side and a side wall with the circular edge, the bottom side of the second cavity () is provided with at least one pair of connecting fingers () for the anti-spying circuit (); and a conductive adhesive () placed inside the second cavity () to make the connecting fingers () on the rigid anti-spy circuit board () and the connecting fingers () on the control circuit of the main control board connect electrically.