| 摘要 |
A gating device for cryptographic transformation comprises first, second, third and fourth AND elements, first and second OR elements, first and second information inputs of the device, command code input, first and second information outputs of the device. First information input of the device is connected to first inverting inputs of first, second and fourth AND elements and to first inputs of the third and sixth AND element correspondingly. Second information input of the device is connected to second inputs of the first and sixth AND elements, to second inverting inputs of third and fourth AND elements and to first inverting input of fifth AND element. Input of command code is connected to third input and to third inverting input of sixth and third AND elements correspondingly, to second and second inverting inputs of second and fifth AND elements correspondingly. Outputs of first, second and third AND elements are connected to first, second and third inputs of first OR element, output of which being first information output of the device. Outputs of fourth, fifth and sixth AND elements are connected to first, second and third inputs of second OR element, output of which being the second information output of the device. |
