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.

Abstract: An enhanced encryption keypad (100) capable of preventing illegal disassembly for an automated teller machine comprises a key panel (101) and a main control board (102). A removal detection protection circuit is disposed inside a main chip of the main control board (102), and at least one pin of the removal detection protection circuit is guided out from a surface (1021) of a side of the main control board (102) near the key panel to form a removal detection point (1022). The removal detection point (1022) has two opened signal contact points. The two opened signal contact points are conducted by a conductive adhesive (103) to activate the removal detection protection circuit. A conductive protection ring (1023) isolated from the removal detection point is disposed at the periphery of the removal detection point. The conductive protection ring (1023) is connected to the removal detection protection circuit inside the main control chip.

Abstract: An pry-proof encrypted keyboard. The encrypted keyboard comprises a keyboard panel (1), a lining board (2) assembled under the keyboard panel (1), a waterproof silicon rubber (4) and a main control panel (5). Convex rib circles (22) are provided on the circumference of the surface of the lining board (2) attached with the waterproof silicon rubber (4). The waterproof silicon rubber is extruded by the lining board (2) when the encrypted keyboard is assembled, and the thickness of corresponding waterproof silicon rubber (4) extruded by the convex rib circles (22) is less than 0.2 MM. The metallic lining board (2) can efficiently prevent fusion attack from the lateral face of the encrypted keyboard, meanwhile two convex rib circles (22) are added on the circumference of the surface of the lining board attached with the water silicon rubber (4), so that the thickness of the waterproof silicon rubber (4) at the grooves (41) is less than 0.

Abstract: An enhanced encryption keypad (100) capable of preventing illegal disassembly for an automated teller machine comprises a key panel (101) and a main control board (102). A removal detection protection circuit is disposed inside a main chip of the main control board (102), and at least one pin of the removal detection protection circuit is guided out from a surface (1021) of a side of the main control board (102) near the key panel to form a removal detection point (1022). The removal detection point (1022) has two opened signal contact points. The two opened signal contact points are conducted by a conductive adhesive (103) to activate the removal detection protection circuit. A conductive protection ring (1023) isolated from the removal detection point is disposed at the periphery of the removal detection point. The conductive protection ring (1023) is connected to the removal detection protection circuit inside the main control chip.

Abstract: An pry-proof encrypted keyboard. The encrypted keyboard comprises a keyboard panel (1), a lining board (2) assembled under the keyboard panel (1), a waterproof silicon rubber (4) and a main control panel (5). Convex rib circles (22) are provided on the circumference of the surface of the lining board (2) attached with the waterproof silicon rubber (4). The waterproof silicon rubber is extruded by the lining board (2) when the encrypted keyboard is assembled, and the thickness of corresponding waterproof silicon rubber (4) extruded by the convex rib circles (22) is less than 0.2 MM. The metallic lining to board (2) can efficiently prevent fusion attack from the lateral face of the encrypted keyboard, meanwhile two convex rib circles (22) are added on the circumference of the surface of the lining board attached with the water silicon rubber (4), so that the thickness of the waterproof silicon rubber (4) at the grooves (41) is less than 0.

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.